mirror of
https://github.com/qemu/qemu.git
synced 2025-10-31 12:07:31 +00:00
4e14008f3a
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4236 c046a42c-6fe2-441c-8c8c-71466251a162
2855 lines
78 KiB
C
2855 lines
78 KiB
C
#include "exec.h"
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#include "host-utils.h"
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#include "helper.h"
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//#define DEBUG_PCALL
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//#define DEBUG_MMU
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//#define DEBUG_MXCC
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//#define DEBUG_UNALIGNED
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//#define DEBUG_UNASSIGNED
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//#define DEBUG_ASI
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#ifdef DEBUG_MMU
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#define DPRINTF_MMU(fmt, args...) \
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do { printf("MMU: " fmt , ##args); } while (0)
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#else
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#define DPRINTF_MMU(fmt, args...)
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#endif
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#ifdef DEBUG_MXCC
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#define DPRINTF_MXCC(fmt, args...) \
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do { printf("MXCC: " fmt , ##args); } while (0)
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#else
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#define DPRINTF_MXCC(fmt, args...)
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#endif
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#ifdef DEBUG_ASI
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#define DPRINTF_ASI(fmt, args...) \
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do { printf("ASI: " fmt , ##args); } while (0)
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#else
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#define DPRINTF_ASI(fmt, args...)
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#endif
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void raise_exception(int tt)
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{
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env->exception_index = tt;
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cpu_loop_exit();
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}
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void helper_trap(target_ulong nb_trap)
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{
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env->exception_index = TT_TRAP + (nb_trap & 0x7f);
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cpu_loop_exit();
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}
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void helper_trapcc(target_ulong nb_trap, target_ulong do_trap)
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{
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if (do_trap) {
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env->exception_index = TT_TRAP + (nb_trap & 0x7f);
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cpu_loop_exit();
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}
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}
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void helper_check_align(target_ulong addr, uint32_t align)
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{
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if (addr & align)
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raise_exception(TT_UNALIGNED);
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}
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#define F_HELPER(name, p) void helper_f##name##p(void)
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#if defined(CONFIG_USER_ONLY)
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#define F_BINOP(name) \
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F_HELPER(name, s) \
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{ \
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FT0 = float32_ ## name (FT0, FT1, &env->fp_status); \
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} \
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F_HELPER(name, d) \
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{ \
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DT0 = float64_ ## name (DT0, DT1, &env->fp_status); \
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} \
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F_HELPER(name, q) \
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{ \
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QT0 = float128_ ## name (QT0, QT1, &env->fp_status); \
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}
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#else
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#define F_BINOP(name) \
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F_HELPER(name, s) \
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{ \
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FT0 = float32_ ## name (FT0, FT1, &env->fp_status); \
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} \
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F_HELPER(name, d) \
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{ \
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DT0 = float64_ ## name (DT0, DT1, &env->fp_status); \
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}
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#endif
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F_BINOP(add);
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F_BINOP(sub);
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F_BINOP(mul);
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F_BINOP(div);
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#undef F_BINOP
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void helper_fsmuld(void)
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{
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DT0 = float64_mul(float32_to_float64(FT0, &env->fp_status),
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float32_to_float64(FT1, &env->fp_status),
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&env->fp_status);
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}
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#if defined(CONFIG_USER_ONLY)
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void helper_fdmulq(void)
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{
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QT0 = float128_mul(float64_to_float128(DT0, &env->fp_status),
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float64_to_float128(DT1, &env->fp_status),
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&env->fp_status);
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}
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#endif
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F_HELPER(neg, s)
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{
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FT0 = float32_chs(FT1);
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}
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#ifdef TARGET_SPARC64
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F_HELPER(neg, d)
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{
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DT0 = float64_chs(DT1);
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}
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#if defined(CONFIG_USER_ONLY)
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F_HELPER(neg, q)
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{
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QT0 = float128_chs(QT1);
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}
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#endif
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#endif
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/* Integer to float conversion. */
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F_HELPER(ito, s)
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{
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FT0 = int32_to_float32(*((int32_t *)&FT1), &env->fp_status);
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}
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F_HELPER(ito, d)
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{
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DT0 = int32_to_float64(*((int32_t *)&FT1), &env->fp_status);
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}
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#if defined(CONFIG_USER_ONLY)
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F_HELPER(ito, q)
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{
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QT0 = int32_to_float128(*((int32_t *)&FT1), &env->fp_status);
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}
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#endif
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#ifdef TARGET_SPARC64
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F_HELPER(xto, s)
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{
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FT0 = int64_to_float32(*((int64_t *)&DT1), &env->fp_status);
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}
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F_HELPER(xto, d)
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{
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DT0 = int64_to_float64(*((int64_t *)&DT1), &env->fp_status);
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}
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#if defined(CONFIG_USER_ONLY)
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F_HELPER(xto, q)
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{
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QT0 = int64_to_float128(*((int64_t *)&DT1), &env->fp_status);
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}
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#endif
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#endif
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#undef F_HELPER
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/* floating point conversion */
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void helper_fdtos(void)
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{
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FT0 = float64_to_float32(DT1, &env->fp_status);
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}
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void helper_fstod(void)
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{
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DT0 = float32_to_float64(FT1, &env->fp_status);
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}
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#if defined(CONFIG_USER_ONLY)
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void helper_fqtos(void)
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{
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FT0 = float128_to_float32(QT1, &env->fp_status);
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}
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void helper_fstoq(void)
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{
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QT0 = float32_to_float128(FT1, &env->fp_status);
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}
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void helper_fqtod(void)
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{
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DT0 = float128_to_float64(QT1, &env->fp_status);
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}
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void helper_fdtoq(void)
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{
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QT0 = float64_to_float128(DT1, &env->fp_status);
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}
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#endif
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/* Float to integer conversion. */
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void helper_fstoi(void)
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{
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*((int32_t *)&FT0) = float32_to_int32_round_to_zero(FT1, &env->fp_status);
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}
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void helper_fdtoi(void)
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{
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*((int32_t *)&FT0) = float64_to_int32_round_to_zero(DT1, &env->fp_status);
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}
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#if defined(CONFIG_USER_ONLY)
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void helper_fqtoi(void)
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{
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*((int32_t *)&FT0) = float128_to_int32_round_to_zero(QT1, &env->fp_status);
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}
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#endif
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#ifdef TARGET_SPARC64
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void helper_fstox(void)
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{
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*((int64_t *)&DT0) = float32_to_int64_round_to_zero(FT1, &env->fp_status);
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}
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void helper_fdtox(void)
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{
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*((int64_t *)&DT0) = float64_to_int64_round_to_zero(DT1, &env->fp_status);
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}
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#if defined(CONFIG_USER_ONLY)
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void helper_fqtox(void)
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{
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*((int64_t *)&DT0) = float128_to_int64_round_to_zero(QT1, &env->fp_status);
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}
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#endif
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void helper_faligndata(void)
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{
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uint64_t tmp;
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tmp = (*((uint64_t *)&DT0)) << ((env->gsr & 7) * 8);
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tmp |= (*((uint64_t *)&DT1)) >> (64 - (env->gsr & 7) * 8);
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*((uint64_t *)&DT0) = tmp;
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}
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void helper_movl_FT0_0(void)
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{
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*((uint32_t *)&FT0) = 0;
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}
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void helper_movl_DT0_0(void)
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{
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*((uint64_t *)&DT0) = 0;
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}
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void helper_movl_FT0_1(void)
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{
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*((uint32_t *)&FT0) = 0xffffffff;
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}
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void helper_movl_DT0_1(void)
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{
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*((uint64_t *)&DT0) = 0xffffffffffffffffULL;
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}
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void helper_fnot(void)
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{
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*(uint64_t *)&DT0 = ~*(uint64_t *)&DT1;
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}
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void helper_fnots(void)
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{
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*(uint32_t *)&FT0 = ~*(uint32_t *)&FT1;
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}
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void helper_fnor(void)
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{
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*(uint64_t *)&DT0 = ~(*(uint64_t *)&DT0 | *(uint64_t *)&DT1);
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}
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void helper_fnors(void)
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{
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*(uint32_t *)&FT0 = ~(*(uint32_t *)&FT0 | *(uint32_t *)&FT1);
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}
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void helper_for(void)
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{
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*(uint64_t *)&DT0 |= *(uint64_t *)&DT1;
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}
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void helper_fors(void)
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{
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*(uint32_t *)&FT0 |= *(uint32_t *)&FT1;
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}
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void helper_fxor(void)
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{
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*(uint64_t *)&DT0 ^= *(uint64_t *)&DT1;
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}
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void helper_fxors(void)
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{
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*(uint32_t *)&FT0 ^= *(uint32_t *)&FT1;
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}
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void helper_fand(void)
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{
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*(uint64_t *)&DT0 &= *(uint64_t *)&DT1;
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}
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void helper_fands(void)
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{
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*(uint32_t *)&FT0 &= *(uint32_t *)&FT1;
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}
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void helper_fornot(void)
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{
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*(uint64_t *)&DT0 = *(uint64_t *)&DT0 | ~*(uint64_t *)&DT1;
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}
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void helper_fornots(void)
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{
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*(uint32_t *)&FT0 = *(uint32_t *)&FT0 | ~*(uint32_t *)&FT1;
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}
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void helper_fandnot(void)
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{
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*(uint64_t *)&DT0 = *(uint64_t *)&DT0 & ~*(uint64_t *)&DT1;
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}
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void helper_fandnots(void)
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{
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*(uint32_t *)&FT0 = *(uint32_t *)&FT0 & ~*(uint32_t *)&FT1;
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}
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void helper_fnand(void)
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{
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*(uint64_t *)&DT0 = ~(*(uint64_t *)&DT0 & *(uint64_t *)&DT1);
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}
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void helper_fnands(void)
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{
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*(uint32_t *)&FT0 = ~(*(uint32_t *)&FT0 & *(uint32_t *)&FT1);
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}
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void helper_fxnor(void)
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{
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*(uint64_t *)&DT0 ^= ~*(uint64_t *)&DT1;
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}
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void helper_fxnors(void)
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{
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*(uint32_t *)&FT0 ^= ~*(uint32_t *)&FT1;
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}
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#ifdef WORDS_BIGENDIAN
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#define VIS_B64(n) b[7 - (n)]
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#define VIS_W64(n) w[3 - (n)]
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#define VIS_SW64(n) sw[3 - (n)]
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#define VIS_L64(n) l[1 - (n)]
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#define VIS_B32(n) b[3 - (n)]
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#define VIS_W32(n) w[1 - (n)]
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#else
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#define VIS_B64(n) b[n]
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#define VIS_W64(n) w[n]
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#define VIS_SW64(n) sw[n]
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#define VIS_L64(n) l[n]
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#define VIS_B32(n) b[n]
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#define VIS_W32(n) w[n]
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#endif
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typedef union {
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uint8_t b[8];
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uint16_t w[4];
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int16_t sw[4];
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uint32_t l[2];
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float64 d;
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} vis64;
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typedef union {
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uint8_t b[4];
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uint16_t w[2];
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uint32_t l;
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float32 f;
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} vis32;
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void helper_fpmerge(void)
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{
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vis64 s, d;
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s.d = DT0;
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d.d = DT1;
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// Reverse calculation order to handle overlap
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d.VIS_B64(7) = s.VIS_B64(3);
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d.VIS_B64(6) = d.VIS_B64(3);
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d.VIS_B64(5) = s.VIS_B64(2);
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d.VIS_B64(4) = d.VIS_B64(2);
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d.VIS_B64(3) = s.VIS_B64(1);
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d.VIS_B64(2) = d.VIS_B64(1);
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d.VIS_B64(1) = s.VIS_B64(0);
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//d.VIS_B64(0) = d.VIS_B64(0);
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DT0 = d.d;
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}
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void helper_fmul8x16(void)
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{
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vis64 s, d;
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uint32_t tmp;
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s.d = DT0;
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d.d = DT1;
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#define PMUL(r) \
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tmp = (int32_t)d.VIS_SW64(r) * (int32_t)s.VIS_B64(r); \
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if ((tmp & 0xff) > 0x7f) \
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tmp += 0x100; \
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d.VIS_W64(r) = tmp >> 8;
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PMUL(0);
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PMUL(1);
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PMUL(2);
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PMUL(3);
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#undef PMUL
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DT0 = d.d;
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}
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void helper_fmul8x16al(void)
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{
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vis64 s, d;
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uint32_t tmp;
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s.d = DT0;
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d.d = DT1;
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#define PMUL(r) \
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tmp = (int32_t)d.VIS_SW64(1) * (int32_t)s.VIS_B64(r); \
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if ((tmp & 0xff) > 0x7f) \
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tmp += 0x100; \
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d.VIS_W64(r) = tmp >> 8;
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PMUL(0);
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PMUL(1);
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PMUL(2);
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PMUL(3);
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#undef PMUL
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DT0 = d.d;
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}
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void helper_fmul8x16au(void)
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{
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vis64 s, d;
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uint32_t tmp;
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s.d = DT0;
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d.d = DT1;
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#define PMUL(r) \
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tmp = (int32_t)d.VIS_SW64(0) * (int32_t)s.VIS_B64(r); \
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if ((tmp & 0xff) > 0x7f) \
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tmp += 0x100; \
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d.VIS_W64(r) = tmp >> 8;
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PMUL(0);
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PMUL(1);
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PMUL(2);
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PMUL(3);
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#undef PMUL
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DT0 = d.d;
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}
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void helper_fmul8sux16(void)
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{
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vis64 s, d;
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uint32_t tmp;
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s.d = DT0;
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d.d = DT1;
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#define PMUL(r) \
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tmp = (int32_t)d.VIS_SW64(r) * ((int32_t)s.VIS_SW64(r) >> 8); \
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if ((tmp & 0xff) > 0x7f) \
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tmp += 0x100; \
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d.VIS_W64(r) = tmp >> 8;
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PMUL(0);
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PMUL(1);
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PMUL(2);
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PMUL(3);
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#undef PMUL
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DT0 = d.d;
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}
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void helper_fmul8ulx16(void)
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{
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vis64 s, d;
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uint32_t tmp;
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s.d = DT0;
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d.d = DT1;
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#define PMUL(r) \
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tmp = (int32_t)d.VIS_SW64(r) * ((uint32_t)s.VIS_B64(r * 2)); \
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if ((tmp & 0xff) > 0x7f) \
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tmp += 0x100; \
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d.VIS_W64(r) = tmp >> 8;
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PMUL(0);
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PMUL(1);
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PMUL(2);
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PMUL(3);
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#undef PMUL
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DT0 = d.d;
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}
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void helper_fmuld8sux16(void)
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{
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vis64 s, d;
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uint32_t tmp;
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s.d = DT0;
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d.d = DT1;
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#define PMUL(r) \
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tmp = (int32_t)d.VIS_SW64(r) * ((int32_t)s.VIS_SW64(r) >> 8); \
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if ((tmp & 0xff) > 0x7f) \
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tmp += 0x100; \
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d.VIS_L64(r) = tmp;
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// Reverse calculation order to handle overlap
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PMUL(1);
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PMUL(0);
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#undef PMUL
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DT0 = d.d;
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}
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|
void helper_fmuld8ulx16(void)
|
|
{
|
|
vis64 s, d;
|
|
uint32_t tmp;
|
|
|
|
s.d = DT0;
|
|
d.d = DT1;
|
|
|
|
#define PMUL(r) \
|
|
tmp = (int32_t)d.VIS_SW64(r) * ((uint32_t)s.VIS_B64(r * 2)); \
|
|
if ((tmp & 0xff) > 0x7f) \
|
|
tmp += 0x100; \
|
|
d.VIS_L64(r) = tmp;
|
|
|
|
// Reverse calculation order to handle overlap
|
|
PMUL(1);
|
|
PMUL(0);
|
|
#undef PMUL
|
|
|
|
DT0 = d.d;
|
|
}
|
|
|
|
void helper_fexpand(void)
|
|
{
|
|
vis32 s;
|
|
vis64 d;
|
|
|
|
s.l = (uint32_t)(*(uint64_t *)&DT0 & 0xffffffff);
|
|
d.d = DT1;
|
|
d.VIS_L64(0) = s.VIS_W32(0) << 4;
|
|
d.VIS_L64(1) = s.VIS_W32(1) << 4;
|
|
d.VIS_L64(2) = s.VIS_W32(2) << 4;
|
|
d.VIS_L64(3) = s.VIS_W32(3) << 4;
|
|
|
|
DT0 = d.d;
|
|
}
|
|
|
|
#define VIS_HELPER(name, F) \
|
|
void name##16(void) \
|
|
{ \
|
|
vis64 s, d; \
|
|
\
|
|
s.d = DT0; \
|
|
d.d = DT1; \
|
|
\
|
|
d.VIS_W64(0) = F(d.VIS_W64(0), s.VIS_W64(0)); \
|
|
d.VIS_W64(1) = F(d.VIS_W64(1), s.VIS_W64(1)); \
|
|
d.VIS_W64(2) = F(d.VIS_W64(2), s.VIS_W64(2)); \
|
|
d.VIS_W64(3) = F(d.VIS_W64(3), s.VIS_W64(3)); \
|
|
\
|
|
DT0 = d.d; \
|
|
} \
|
|
\
|
|
void name##16s(void) \
|
|
{ \
|
|
vis32 s, d; \
|
|
\
|
|
s.f = FT0; \
|
|
d.f = FT1; \
|
|
\
|
|
d.VIS_W32(0) = F(d.VIS_W32(0), s.VIS_W32(0)); \
|
|
d.VIS_W32(1) = F(d.VIS_W32(1), s.VIS_W32(1)); \
|
|
\
|
|
FT0 = d.f; \
|
|
} \
|
|
\
|
|
void name##32(void) \
|
|
{ \
|
|
vis64 s, d; \
|
|
\
|
|
s.d = DT0; \
|
|
d.d = DT1; \
|
|
\
|
|
d.VIS_L64(0) = F(d.VIS_L64(0), s.VIS_L64(0)); \
|
|
d.VIS_L64(1) = F(d.VIS_L64(1), s.VIS_L64(1)); \
|
|
\
|
|
DT0 = d.d; \
|
|
} \
|
|
\
|
|
void name##32s(void) \
|
|
{ \
|
|
vis32 s, d; \
|
|
\
|
|
s.f = FT0; \
|
|
d.f = FT1; \
|
|
\
|
|
d.l = F(d.l, s.l); \
|
|
\
|
|
FT0 = d.f; \
|
|
}
|
|
|
|
#define FADD(a, b) ((a) + (b))
|
|
#define FSUB(a, b) ((a) - (b))
|
|
VIS_HELPER(helper_fpadd, FADD)
|
|
VIS_HELPER(helper_fpsub, FSUB)
|
|
|
|
#define VIS_CMPHELPER(name, F) \
|
|
void name##16(void) \
|
|
{ \
|
|
vis64 s, d; \
|
|
\
|
|
s.d = DT0; \
|
|
d.d = DT1; \
|
|
\
|
|
d.VIS_W64(0) = F(d.VIS_W64(0), s.VIS_W64(0))? 1: 0; \
|
|
d.VIS_W64(0) |= F(d.VIS_W64(1), s.VIS_W64(1))? 2: 0; \
|
|
d.VIS_W64(0) |= F(d.VIS_W64(2), s.VIS_W64(2))? 4: 0; \
|
|
d.VIS_W64(0) |= F(d.VIS_W64(3), s.VIS_W64(3))? 8: 0; \
|
|
\
|
|
DT0 = d.d; \
|
|
} \
|
|
\
|
|
void name##32(void) \
|
|
{ \
|
|
vis64 s, d; \
|
|
\
|
|
s.d = DT0; \
|
|
d.d = DT1; \
|
|
\
|
|
d.VIS_L64(0) = F(d.VIS_L64(0), s.VIS_L64(0))? 1: 0; \
|
|
d.VIS_L64(0) |= F(d.VIS_L64(1), s.VIS_L64(1))? 2: 0; \
|
|
\
|
|
DT0 = d.d; \
|
|
}
|
|
|
|
#define FCMPGT(a, b) ((a) > (b))
|
|
#define FCMPEQ(a, b) ((a) == (b))
|
|
#define FCMPLE(a, b) ((a) <= (b))
|
|
#define FCMPNE(a, b) ((a) != (b))
|
|
|
|
VIS_CMPHELPER(helper_fcmpgt, FCMPGT)
|
|
VIS_CMPHELPER(helper_fcmpeq, FCMPEQ)
|
|
VIS_CMPHELPER(helper_fcmple, FCMPLE)
|
|
VIS_CMPHELPER(helper_fcmpne, FCMPNE)
|
|
#endif
|
|
|
|
void helper_check_ieee_exceptions(void)
|
|
{
|
|
target_ulong status;
|
|
|
|
status = get_float_exception_flags(&env->fp_status);
|
|
if (status) {
|
|
/* Copy IEEE 754 flags into FSR */
|
|
if (status & float_flag_invalid)
|
|
env->fsr |= FSR_NVC;
|
|
if (status & float_flag_overflow)
|
|
env->fsr |= FSR_OFC;
|
|
if (status & float_flag_underflow)
|
|
env->fsr |= FSR_UFC;
|
|
if (status & float_flag_divbyzero)
|
|
env->fsr |= FSR_DZC;
|
|
if (status & float_flag_inexact)
|
|
env->fsr |= FSR_NXC;
|
|
|
|
if ((env->fsr & FSR_CEXC_MASK) & ((env->fsr & FSR_TEM_MASK) >> 23)) {
|
|
/* Unmasked exception, generate a trap */
|
|
env->fsr |= FSR_FTT_IEEE_EXCP;
|
|
raise_exception(TT_FP_EXCP);
|
|
} else {
|
|
/* Accumulate exceptions */
|
|
env->fsr |= (env->fsr & FSR_CEXC_MASK) << 5;
|
|
}
|
|
}
|
|
}
|
|
|
|
void helper_clear_float_exceptions(void)
|
|
{
|
|
set_float_exception_flags(0, &env->fp_status);
|
|
}
|
|
|
|
void helper_fabss(void)
|
|
{
|
|
FT0 = float32_abs(FT1);
|
|
}
|
|
|
|
#ifdef TARGET_SPARC64
|
|
void helper_fabsd(void)
|
|
{
|
|
DT0 = float64_abs(DT1);
|
|
}
|
|
|
|
#if defined(CONFIG_USER_ONLY)
|
|
void helper_fabsq(void)
|
|
{
|
|
QT0 = float128_abs(QT1);
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
void helper_fsqrts(void)
|
|
{
|
|
FT0 = float32_sqrt(FT1, &env->fp_status);
|
|
}
|
|
|
|
void helper_fsqrtd(void)
|
|
{
|
|
DT0 = float64_sqrt(DT1, &env->fp_status);
|
|
}
|
|
|
|
#if defined(CONFIG_USER_ONLY)
|
|
void helper_fsqrtq(void)
|
|
{
|
|
QT0 = float128_sqrt(QT1, &env->fp_status);
|
|
}
|
|
#endif
|
|
|
|
#define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
|
|
void glue(helper_, name) (void) \
|
|
{ \
|
|
target_ulong new_fsr; \
|
|
\
|
|
env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
|
|
switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
|
|
case float_relation_unordered: \
|
|
new_fsr = (FSR_FCC1 | FSR_FCC0) << FS; \
|
|
if ((env->fsr & FSR_NVM) || TRAP) { \
|
|
env->fsr |= new_fsr; \
|
|
env->fsr |= FSR_NVC; \
|
|
env->fsr |= FSR_FTT_IEEE_EXCP; \
|
|
raise_exception(TT_FP_EXCP); \
|
|
} else { \
|
|
env->fsr |= FSR_NVA; \
|
|
} \
|
|
break; \
|
|
case float_relation_less: \
|
|
new_fsr = FSR_FCC0 << FS; \
|
|
break; \
|
|
case float_relation_greater: \
|
|
new_fsr = FSR_FCC1 << FS; \
|
|
break; \
|
|
default: \
|
|
new_fsr = 0; \
|
|
break; \
|
|
} \
|
|
env->fsr |= new_fsr; \
|
|
}
|
|
|
|
GEN_FCMP(fcmps, float32, FT0, FT1, 0, 0);
|
|
GEN_FCMP(fcmpd, float64, DT0, DT1, 0, 0);
|
|
|
|
GEN_FCMP(fcmpes, float32, FT0, FT1, 0, 1);
|
|
GEN_FCMP(fcmped, float64, DT0, DT1, 0, 1);
|
|
|
|
#ifdef CONFIG_USER_ONLY
|
|
GEN_FCMP(fcmpq, float128, QT0, QT1, 0, 0);
|
|
GEN_FCMP(fcmpeq, float128, QT0, QT1, 0, 1);
|
|
#endif
|
|
|
|
#ifdef TARGET_SPARC64
|
|
GEN_FCMP(fcmps_fcc1, float32, FT0, FT1, 22, 0);
|
|
GEN_FCMP(fcmpd_fcc1, float64, DT0, DT1, 22, 0);
|
|
|
|
GEN_FCMP(fcmps_fcc2, float32, FT0, FT1, 24, 0);
|
|
GEN_FCMP(fcmpd_fcc2, float64, DT0, DT1, 24, 0);
|
|
|
|
GEN_FCMP(fcmps_fcc3, float32, FT0, FT1, 26, 0);
|
|
GEN_FCMP(fcmpd_fcc3, float64, DT0, DT1, 26, 0);
|
|
|
|
GEN_FCMP(fcmpes_fcc1, float32, FT0, FT1, 22, 1);
|
|
GEN_FCMP(fcmped_fcc1, float64, DT0, DT1, 22, 1);
|
|
|
|
GEN_FCMP(fcmpes_fcc2, float32, FT0, FT1, 24, 1);
|
|
GEN_FCMP(fcmped_fcc2, float64, DT0, DT1, 24, 1);
|
|
|
|
GEN_FCMP(fcmpes_fcc3, float32, FT0, FT1, 26, 1);
|
|
GEN_FCMP(fcmped_fcc3, float64, DT0, DT1, 26, 1);
|
|
#ifdef CONFIG_USER_ONLY
|
|
GEN_FCMP(fcmpq_fcc1, float128, QT0, QT1, 22, 0);
|
|
GEN_FCMP(fcmpq_fcc2, float128, QT0, QT1, 24, 0);
|
|
GEN_FCMP(fcmpq_fcc3, float128, QT0, QT1, 26, 0);
|
|
GEN_FCMP(fcmpeq_fcc1, float128, QT0, QT1, 22, 1);
|
|
GEN_FCMP(fcmpeq_fcc2, float128, QT0, QT1, 24, 1);
|
|
GEN_FCMP(fcmpeq_fcc3, float128, QT0, QT1, 26, 1);
|
|
#endif
|
|
#endif
|
|
|
|
#if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) && defined(DEBUG_MXCC)
|
|
static void dump_mxcc(CPUState *env)
|
|
{
|
|
printf("mxccdata: %016llx %016llx %016llx %016llx\n",
|
|
env->mxccdata[0], env->mxccdata[1], env->mxccdata[2], env->mxccdata[3]);
|
|
printf("mxccregs: %016llx %016llx %016llx %016llx\n"
|
|
" %016llx %016llx %016llx %016llx\n",
|
|
env->mxccregs[0], env->mxccregs[1], env->mxccregs[2], env->mxccregs[3],
|
|
env->mxccregs[4], env->mxccregs[5], env->mxccregs[6], env->mxccregs[7]);
|
|
}
|
|
#endif
|
|
|
|
#if (defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY)) \
|
|
&& defined(DEBUG_ASI)
|
|
static void dump_asi(const char *txt, target_ulong addr, int asi, int size,
|
|
uint64_t r1)
|
|
{
|
|
switch (size)
|
|
{
|
|
case 1:
|
|
DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %02" PRIx64 "\n", txt,
|
|
addr, asi, r1 & 0xff);
|
|
break;
|
|
case 2:
|
|
DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %04" PRIx64 "\n", txt,
|
|
addr, asi, r1 & 0xffff);
|
|
break;
|
|
case 4:
|
|
DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %08" PRIx64 "\n", txt,
|
|
addr, asi, r1 & 0xffffffff);
|
|
break;
|
|
case 8:
|
|
DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %016" PRIx64 "\n", txt,
|
|
addr, asi, r1);
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifndef TARGET_SPARC64
|
|
#ifndef CONFIG_USER_ONLY
|
|
uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign)
|
|
{
|
|
uint64_t ret = 0;
|
|
#if defined(DEBUG_MXCC) || defined(DEBUG_ASI)
|
|
uint32_t last_addr = addr;
|
|
#endif
|
|
|
|
switch (asi) {
|
|
case 2: /* SuperSparc MXCC registers */
|
|
switch (addr) {
|
|
case 0x01c00a00: /* MXCC control register */
|
|
if (size == 8)
|
|
ret = env->mxccregs[3];
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00a04: /* MXCC control register */
|
|
if (size == 4)
|
|
ret = env->mxccregs[3];
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00c00: /* Module reset register */
|
|
if (size == 8) {
|
|
ret = env->mxccregs[5];
|
|
// should we do something here?
|
|
} else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00f00: /* MBus port address register */
|
|
if (size == 8)
|
|
ret = env->mxccregs[7];
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
default:
|
|
DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", addr, size);
|
|
break;
|
|
}
|
|
DPRINTF_MXCC("asi = %d, size = %d, sign = %d, addr = %08x -> ret = %08x,"
|
|
"addr = %08x\n", asi, size, sign, last_addr, ret, addr);
|
|
#ifdef DEBUG_MXCC
|
|
dump_mxcc(env);
|
|
#endif
|
|
break;
|
|
case 3: /* MMU probe */
|
|
{
|
|
int mmulev;
|
|
|
|
mmulev = (addr >> 8) & 15;
|
|
if (mmulev > 4)
|
|
ret = 0;
|
|
else
|
|
ret = mmu_probe(env, addr, mmulev);
|
|
DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n",
|
|
addr, mmulev, ret);
|
|
}
|
|
break;
|
|
case 4: /* read MMU regs */
|
|
{
|
|
int reg = (addr >> 8) & 0x1f;
|
|
|
|
ret = env->mmuregs[reg];
|
|
if (reg == 3) /* Fault status cleared on read */
|
|
env->mmuregs[3] = 0;
|
|
else if (reg == 0x13) /* Fault status read */
|
|
ret = env->mmuregs[3];
|
|
else if (reg == 0x14) /* Fault address read */
|
|
ret = env->mmuregs[4];
|
|
DPRINTF_MMU("mmu_read: reg[%d] = 0x%08" PRIx64 "\n", reg, ret);
|
|
}
|
|
break;
|
|
case 5: // Turbosparc ITLB Diagnostic
|
|
case 6: // Turbosparc DTLB Diagnostic
|
|
case 7: // Turbosparc IOTLB Diagnostic
|
|
break;
|
|
case 9: /* Supervisor code access */
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_code(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_code(addr & ~1);
|
|
break;
|
|
default:
|
|
case 4:
|
|
ret = ldl_code(addr & ~3);
|
|
break;
|
|
case 8:
|
|
ret = ldq_code(addr & ~7);
|
|
break;
|
|
}
|
|
break;
|
|
case 0xa: /* User data access */
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_user(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_user(addr & ~1);
|
|
break;
|
|
default:
|
|
case 4:
|
|
ret = ldl_user(addr & ~3);
|
|
break;
|
|
case 8:
|
|
ret = ldq_user(addr & ~7);
|
|
break;
|
|
}
|
|
break;
|
|
case 0xb: /* Supervisor data access */
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_kernel(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_kernel(addr & ~1);
|
|
break;
|
|
default:
|
|
case 4:
|
|
ret = ldl_kernel(addr & ~3);
|
|
break;
|
|
case 8:
|
|
ret = ldq_kernel(addr & ~7);
|
|
break;
|
|
}
|
|
break;
|
|
case 0xc: /* I-cache tag */
|
|
case 0xd: /* I-cache data */
|
|
case 0xe: /* D-cache tag */
|
|
case 0xf: /* D-cache data */
|
|
break;
|
|
case 0x20: /* MMU passthrough */
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_phys(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_phys(addr & ~1);
|
|
break;
|
|
default:
|
|
case 4:
|
|
ret = ldl_phys(addr & ~3);
|
|
break;
|
|
case 8:
|
|
ret = ldq_phys(addr & ~7);
|
|
break;
|
|
}
|
|
break;
|
|
case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_phys((target_phys_addr_t)addr
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32));
|
|
break;
|
|
case 2:
|
|
ret = lduw_phys((target_phys_addr_t)(addr & ~1)
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32));
|
|
break;
|
|
default:
|
|
case 4:
|
|
ret = ldl_phys((target_phys_addr_t)(addr & ~3)
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32));
|
|
break;
|
|
case 8:
|
|
ret = ldq_phys((target_phys_addr_t)(addr & ~7)
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32));
|
|
break;
|
|
}
|
|
break;
|
|
case 0x30: // Turbosparc secondary cache diagnostic
|
|
case 0x31: // Turbosparc RAM snoop
|
|
case 0x32: // Turbosparc page table descriptor diagnostic
|
|
case 0x39: /* data cache diagnostic register */
|
|
ret = 0;
|
|
break;
|
|
case 8: /* User code access, XXX */
|
|
default:
|
|
do_unassigned_access(addr, 0, 0, asi);
|
|
ret = 0;
|
|
break;
|
|
}
|
|
if (sign) {
|
|
switch(size) {
|
|
case 1:
|
|
ret = (int8_t) ret;
|
|
break;
|
|
case 2:
|
|
ret = (int16_t) ret;
|
|
break;
|
|
case 4:
|
|
ret = (int32_t) ret;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG_ASI
|
|
dump_asi("read ", last_addr, asi, size, ret);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
void helper_st_asi(target_ulong addr, uint64_t val, int asi, int size)
|
|
{
|
|
switch(asi) {
|
|
case 2: /* SuperSparc MXCC registers */
|
|
switch (addr) {
|
|
case 0x01c00000: /* MXCC stream data register 0 */
|
|
if (size == 8)
|
|
env->mxccdata[0] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00008: /* MXCC stream data register 1 */
|
|
if (size == 8)
|
|
env->mxccdata[1] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00010: /* MXCC stream data register 2 */
|
|
if (size == 8)
|
|
env->mxccdata[2] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00018: /* MXCC stream data register 3 */
|
|
if (size == 8)
|
|
env->mxccdata[3] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00100: /* MXCC stream source */
|
|
if (size == 8)
|
|
env->mxccregs[0] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
env->mxccdata[0] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 0);
|
|
env->mxccdata[1] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 8);
|
|
env->mxccdata[2] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 16);
|
|
env->mxccdata[3] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 24);
|
|
break;
|
|
case 0x01c00200: /* MXCC stream destination */
|
|
if (size == 8)
|
|
env->mxccregs[1] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
stq_phys((env->mxccregs[1] & 0xffffffffULL) + 0, env->mxccdata[0]);
|
|
stq_phys((env->mxccregs[1] & 0xffffffffULL) + 8, env->mxccdata[1]);
|
|
stq_phys((env->mxccregs[1] & 0xffffffffULL) + 16, env->mxccdata[2]);
|
|
stq_phys((env->mxccregs[1] & 0xffffffffULL) + 24, env->mxccdata[3]);
|
|
break;
|
|
case 0x01c00a00: /* MXCC control register */
|
|
if (size == 8)
|
|
env->mxccregs[3] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00a04: /* MXCC control register */
|
|
if (size == 4)
|
|
env->mxccregs[3] = (env->mxccregs[0xa] & 0xffffffff00000000ULL) | val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00e00: /* MXCC error register */
|
|
// writing a 1 bit clears the error
|
|
if (size == 8)
|
|
env->mxccregs[6] &= ~val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
case 0x01c00f00: /* MBus port address register */
|
|
if (size == 8)
|
|
env->mxccregs[7] = val;
|
|
else
|
|
DPRINTF_MXCC("%08x: unimplemented access size: %d\n", addr, size);
|
|
break;
|
|
default:
|
|
DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", addr, size);
|
|
break;
|
|
}
|
|
DPRINTF_MXCC("asi = %d, size = %d, addr = %08x, val = %08x\n", asi, size, addr, val);
|
|
#ifdef DEBUG_MXCC
|
|
dump_mxcc(env);
|
|
#endif
|
|
break;
|
|
case 3: /* MMU flush */
|
|
{
|
|
int mmulev;
|
|
|
|
mmulev = (addr >> 8) & 15;
|
|
DPRINTF_MMU("mmu flush level %d\n", mmulev);
|
|
switch (mmulev) {
|
|
case 0: // flush page
|
|
tlb_flush_page(env, addr & 0xfffff000);
|
|
break;
|
|
case 1: // flush segment (256k)
|
|
case 2: // flush region (16M)
|
|
case 3: // flush context (4G)
|
|
case 4: // flush entire
|
|
tlb_flush(env, 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
#ifdef DEBUG_MMU
|
|
dump_mmu(env);
|
|
#endif
|
|
}
|
|
break;
|
|
case 4: /* write MMU regs */
|
|
{
|
|
int reg = (addr >> 8) & 0x1f;
|
|
uint32_t oldreg;
|
|
|
|
oldreg = env->mmuregs[reg];
|
|
switch(reg) {
|
|
case 0: // Control Register
|
|
env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) |
|
|
(val & 0x00ffffff);
|
|
// Mappings generated during no-fault mode or MMU
|
|
// disabled mode are invalid in normal mode
|
|
if ((oldreg & (MMU_E | MMU_NF | env->mmu_bm)) !=
|
|
(env->mmuregs[reg] & (MMU_E | MMU_NF | env->mmu_bm)))
|
|
tlb_flush(env, 1);
|
|
break;
|
|
case 1: // Context Table Pointer Register
|
|
env->mmuregs[reg] = val & env->mmu_ctpr_mask;
|
|
break;
|
|
case 2: // Context Register
|
|
env->mmuregs[reg] = val & env->mmu_cxr_mask;
|
|
if (oldreg != env->mmuregs[reg]) {
|
|
/* we flush when the MMU context changes because
|
|
QEMU has no MMU context support */
|
|
tlb_flush(env, 1);
|
|
}
|
|
break;
|
|
case 3: // Synchronous Fault Status Register with Clear
|
|
case 4: // Synchronous Fault Address Register
|
|
break;
|
|
case 0x10: // TLB Replacement Control Register
|
|
env->mmuregs[reg] = val & env->mmu_trcr_mask;
|
|
break;
|
|
case 0x13: // Synchronous Fault Status Register with Read and Clear
|
|
env->mmuregs[3] = val & env->mmu_sfsr_mask;
|
|
break;
|
|
case 0x14: // Synchronous Fault Address Register
|
|
env->mmuregs[4] = val;
|
|
break;
|
|
default:
|
|
env->mmuregs[reg] = val;
|
|
break;
|
|
}
|
|
if (oldreg != env->mmuregs[reg]) {
|
|
DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
|
|
}
|
|
#ifdef DEBUG_MMU
|
|
dump_mmu(env);
|
|
#endif
|
|
}
|
|
break;
|
|
case 5: // Turbosparc ITLB Diagnostic
|
|
case 6: // Turbosparc DTLB Diagnostic
|
|
case 7: // Turbosparc IOTLB Diagnostic
|
|
break;
|
|
case 0xa: /* User data access */
|
|
switch(size) {
|
|
case 1:
|
|
stb_user(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_user(addr & ~1, val);
|
|
break;
|
|
default:
|
|
case 4:
|
|
stl_user(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
stq_user(addr & ~7, val);
|
|
break;
|
|
}
|
|
break;
|
|
case 0xb: /* Supervisor data access */
|
|
switch(size) {
|
|
case 1:
|
|
stb_kernel(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_kernel(addr & ~1, val);
|
|
break;
|
|
default:
|
|
case 4:
|
|
stl_kernel(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
stq_kernel(addr & ~7, val);
|
|
break;
|
|
}
|
|
break;
|
|
case 0xc: /* I-cache tag */
|
|
case 0xd: /* I-cache data */
|
|
case 0xe: /* D-cache tag */
|
|
case 0xf: /* D-cache data */
|
|
case 0x10: /* I/D-cache flush page */
|
|
case 0x11: /* I/D-cache flush segment */
|
|
case 0x12: /* I/D-cache flush region */
|
|
case 0x13: /* I/D-cache flush context */
|
|
case 0x14: /* I/D-cache flush user */
|
|
break;
|
|
case 0x17: /* Block copy, sta access */
|
|
{
|
|
// val = src
|
|
// addr = dst
|
|
// copy 32 bytes
|
|
unsigned int i;
|
|
uint32_t src = val & ~3, dst = addr & ~3, temp;
|
|
|
|
for (i = 0; i < 32; i += 4, src += 4, dst += 4) {
|
|
temp = ldl_kernel(src);
|
|
stl_kernel(dst, temp);
|
|
}
|
|
}
|
|
break;
|
|
case 0x1f: /* Block fill, stda access */
|
|
{
|
|
// addr = dst
|
|
// fill 32 bytes with val
|
|
unsigned int i;
|
|
uint32_t dst = addr & 7;
|
|
|
|
for (i = 0; i < 32; i += 8, dst += 8)
|
|
stq_kernel(dst, val);
|
|
}
|
|
break;
|
|
case 0x20: /* MMU passthrough */
|
|
{
|
|
switch(size) {
|
|
case 1:
|
|
stb_phys(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_phys(addr & ~1, val);
|
|
break;
|
|
case 4:
|
|
default:
|
|
stl_phys(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
stq_phys(addr & ~7, val);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
|
|
{
|
|
switch(size) {
|
|
case 1:
|
|
stb_phys((target_phys_addr_t)addr
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32), val);
|
|
break;
|
|
case 2:
|
|
stw_phys((target_phys_addr_t)(addr & ~1)
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32), val);
|
|
break;
|
|
case 4:
|
|
default:
|
|
stl_phys((target_phys_addr_t)(addr & ~3)
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32), val);
|
|
break;
|
|
case 8:
|
|
stq_phys((target_phys_addr_t)(addr & ~7)
|
|
| ((target_phys_addr_t)(asi & 0xf) << 32), val);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x30: // store buffer tags or Turbosparc secondary cache diagnostic
|
|
case 0x31: // store buffer data, Ross RT620 I-cache flush or
|
|
// Turbosparc snoop RAM
|
|
case 0x32: // store buffer control or Turbosparc page table descriptor diagnostic
|
|
case 0x36: /* I-cache flash clear */
|
|
case 0x37: /* D-cache flash clear */
|
|
case 0x38: /* breakpoint diagnostics */
|
|
case 0x4c: /* breakpoint action */
|
|
break;
|
|
case 8: /* User code access, XXX */
|
|
case 9: /* Supervisor code access, XXX */
|
|
default:
|
|
do_unassigned_access(addr, 1, 0, asi);
|
|
break;
|
|
}
|
|
#ifdef DEBUG_ASI
|
|
dump_asi("write", addr, asi, size, val);
|
|
#endif
|
|
}
|
|
|
|
#endif /* CONFIG_USER_ONLY */
|
|
#else /* TARGET_SPARC64 */
|
|
|
|
#ifdef CONFIG_USER_ONLY
|
|
uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign)
|
|
{
|
|
uint64_t ret = 0;
|
|
#if defined(DEBUG_ASI)
|
|
target_ulong last_addr = addr;
|
|
#endif
|
|
|
|
if (asi < 0x80)
|
|
raise_exception(TT_PRIV_ACT);
|
|
|
|
switch (asi) {
|
|
case 0x80: // Primary
|
|
case 0x82: // Primary no-fault
|
|
case 0x88: // Primary LE
|
|
case 0x8a: // Primary no-fault LE
|
|
{
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_raw(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_raw(addr & ~1);
|
|
break;
|
|
case 4:
|
|
ret = ldl_raw(addr & ~3);
|
|
break;
|
|
default:
|
|
case 8:
|
|
ret = ldq_raw(addr & ~7);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x81: // Secondary
|
|
case 0x83: // Secondary no-fault
|
|
case 0x89: // Secondary LE
|
|
case 0x8b: // Secondary no-fault LE
|
|
// XXX
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Convert from little endian */
|
|
switch (asi) {
|
|
case 0x88: // Primary LE
|
|
case 0x89: // Secondary LE
|
|
case 0x8a: // Primary no-fault LE
|
|
case 0x8b: // Secondary no-fault LE
|
|
switch(size) {
|
|
case 2:
|
|
ret = bswap16(ret);
|
|
break;
|
|
case 4:
|
|
ret = bswap32(ret);
|
|
break;
|
|
case 8:
|
|
ret = bswap64(ret);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Convert to signed number */
|
|
if (sign) {
|
|
switch(size) {
|
|
case 1:
|
|
ret = (int8_t) ret;
|
|
break;
|
|
case 2:
|
|
ret = (int16_t) ret;
|
|
break;
|
|
case 4:
|
|
ret = (int32_t) ret;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG_ASI
|
|
dump_asi("read ", last_addr, asi, size, ret);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
void helper_st_asi(target_ulong addr, target_ulong val, int asi, int size)
|
|
{
|
|
#ifdef DEBUG_ASI
|
|
dump_asi("write", addr, asi, size, val);
|
|
#endif
|
|
if (asi < 0x80)
|
|
raise_exception(TT_PRIV_ACT);
|
|
|
|
/* Convert to little endian */
|
|
switch (asi) {
|
|
case 0x88: // Primary LE
|
|
case 0x89: // Secondary LE
|
|
switch(size) {
|
|
case 2:
|
|
addr = bswap16(addr);
|
|
break;
|
|
case 4:
|
|
addr = bswap32(addr);
|
|
break;
|
|
case 8:
|
|
addr = bswap64(addr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch(asi) {
|
|
case 0x80: // Primary
|
|
case 0x88: // Primary LE
|
|
{
|
|
switch(size) {
|
|
case 1:
|
|
stb_raw(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_raw(addr & ~1, val);
|
|
break;
|
|
case 4:
|
|
stl_raw(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
default:
|
|
stq_raw(addr & ~7, val);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x81: // Secondary
|
|
case 0x89: // Secondary LE
|
|
// XXX
|
|
return;
|
|
|
|
case 0x82: // Primary no-fault, RO
|
|
case 0x83: // Secondary no-fault, RO
|
|
case 0x8a: // Primary no-fault LE, RO
|
|
case 0x8b: // Secondary no-fault LE, RO
|
|
default:
|
|
do_unassigned_access(addr, 1, 0, 1);
|
|
return;
|
|
}
|
|
}
|
|
|
|
#else /* CONFIG_USER_ONLY */
|
|
|
|
uint64_t helper_ld_asi(target_ulong addr, int asi, int size, int sign)
|
|
{
|
|
uint64_t ret = 0;
|
|
#if defined(DEBUG_ASI)
|
|
target_ulong last_addr = addr;
|
|
#endif
|
|
|
|
if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
|
|
|| (asi >= 0x30 && asi < 0x80 && !(env->hpstate & HS_PRIV)))
|
|
raise_exception(TT_PRIV_ACT);
|
|
|
|
switch (asi) {
|
|
case 0x10: // As if user primary
|
|
case 0x18: // As if user primary LE
|
|
case 0x80: // Primary
|
|
case 0x82: // Primary no-fault
|
|
case 0x88: // Primary LE
|
|
case 0x8a: // Primary no-fault LE
|
|
if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
|
|
if (env->hpstate & HS_PRIV) {
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_hypv(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_hypv(addr & ~1);
|
|
break;
|
|
case 4:
|
|
ret = ldl_hypv(addr & ~3);
|
|
break;
|
|
default:
|
|
case 8:
|
|
ret = ldq_hypv(addr & ~7);
|
|
break;
|
|
}
|
|
} else {
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_kernel(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_kernel(addr & ~1);
|
|
break;
|
|
case 4:
|
|
ret = ldl_kernel(addr & ~3);
|
|
break;
|
|
default:
|
|
case 8:
|
|
ret = ldq_kernel(addr & ~7);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_user(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_user(addr & ~1);
|
|
break;
|
|
case 4:
|
|
ret = ldl_user(addr & ~3);
|
|
break;
|
|
default:
|
|
case 8:
|
|
ret = ldq_user(addr & ~7);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x14: // Bypass
|
|
case 0x15: // Bypass, non-cacheable
|
|
case 0x1c: // Bypass LE
|
|
case 0x1d: // Bypass, non-cacheable LE
|
|
{
|
|
switch(size) {
|
|
case 1:
|
|
ret = ldub_phys(addr);
|
|
break;
|
|
case 2:
|
|
ret = lduw_phys(addr & ~1);
|
|
break;
|
|
case 4:
|
|
ret = ldl_phys(addr & ~3);
|
|
break;
|
|
default:
|
|
case 8:
|
|
ret = ldq_phys(addr & ~7);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case 0x04: // Nucleus
|
|
case 0x0c: // Nucleus Little Endian (LE)
|
|
case 0x11: // As if user secondary
|
|
case 0x19: // As if user secondary LE
|
|
case 0x24: // Nucleus quad LDD 128 bit atomic
|
|
case 0x2c: // Nucleus quad LDD 128 bit atomic
|
|
case 0x4a: // UPA config
|
|
case 0x81: // Secondary
|
|
case 0x83: // Secondary no-fault
|
|
case 0x89: // Secondary LE
|
|
case 0x8b: // Secondary no-fault LE
|
|
// XXX
|
|
break;
|
|
case 0x45: // LSU
|
|
ret = env->lsu;
|
|
break;
|
|
case 0x50: // I-MMU regs
|
|
{
|
|
int reg = (addr >> 3) & 0xf;
|
|
|
|
ret = env->immuregs[reg];
|
|
break;
|
|
}
|
|
case 0x51: // I-MMU 8k TSB pointer
|
|
case 0x52: // I-MMU 64k TSB pointer
|
|
case 0x55: // I-MMU data access
|
|
// XXX
|
|
break;
|
|
case 0x56: // I-MMU tag read
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
// Valid, ctx match, vaddr match
|
|
if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
|
|
env->itlb_tag[i] == addr) {
|
|
ret = env->itlb_tag[i];
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 0x58: // D-MMU regs
|
|
{
|
|
int reg = (addr >> 3) & 0xf;
|
|
|
|
ret = env->dmmuregs[reg];
|
|
break;
|
|
}
|
|
case 0x5e: // D-MMU tag read
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
// Valid, ctx match, vaddr match
|
|
if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
|
|
env->dtlb_tag[i] == addr) {
|
|
ret = env->dtlb_tag[i];
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 0x59: // D-MMU 8k TSB pointer
|
|
case 0x5a: // D-MMU 64k TSB pointer
|
|
case 0x5b: // D-MMU data pointer
|
|
case 0x5d: // D-MMU data access
|
|
case 0x48: // Interrupt dispatch, RO
|
|
case 0x49: // Interrupt data receive
|
|
case 0x7f: // Incoming interrupt vector, RO
|
|
// XXX
|
|
break;
|
|
case 0x54: // I-MMU data in, WO
|
|
case 0x57: // I-MMU demap, WO
|
|
case 0x5c: // D-MMU data in, WO
|
|
case 0x5f: // D-MMU demap, WO
|
|
case 0x77: // Interrupt vector, WO
|
|
default:
|
|
do_unassigned_access(addr, 0, 0, 1);
|
|
ret = 0;
|
|
break;
|
|
}
|
|
|
|
/* Convert from little endian */
|
|
switch (asi) {
|
|
case 0x0c: // Nucleus Little Endian (LE)
|
|
case 0x18: // As if user primary LE
|
|
case 0x19: // As if user secondary LE
|
|
case 0x1c: // Bypass LE
|
|
case 0x1d: // Bypass, non-cacheable LE
|
|
case 0x88: // Primary LE
|
|
case 0x89: // Secondary LE
|
|
case 0x8a: // Primary no-fault LE
|
|
case 0x8b: // Secondary no-fault LE
|
|
switch(size) {
|
|
case 2:
|
|
ret = bswap16(ret);
|
|
break;
|
|
case 4:
|
|
ret = bswap32(ret);
|
|
break;
|
|
case 8:
|
|
ret = bswap64(ret);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Convert to signed number */
|
|
if (sign) {
|
|
switch(size) {
|
|
case 1:
|
|
ret = (int8_t) ret;
|
|
break;
|
|
case 2:
|
|
ret = (int16_t) ret;
|
|
break;
|
|
case 4:
|
|
ret = (int32_t) ret;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG_ASI
|
|
dump_asi("read ", last_addr, asi, size, ret);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
void helper_st_asi(target_ulong addr, target_ulong val, int asi, int size)
|
|
{
|
|
#ifdef DEBUG_ASI
|
|
dump_asi("write", addr, asi, size, val);
|
|
#endif
|
|
if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
|
|
|| (asi >= 0x30 && asi < 0x80 && !(env->hpstate & HS_PRIV)))
|
|
raise_exception(TT_PRIV_ACT);
|
|
|
|
/* Convert to little endian */
|
|
switch (asi) {
|
|
case 0x0c: // Nucleus Little Endian (LE)
|
|
case 0x18: // As if user primary LE
|
|
case 0x19: // As if user secondary LE
|
|
case 0x1c: // Bypass LE
|
|
case 0x1d: // Bypass, non-cacheable LE
|
|
case 0x88: // Primary LE
|
|
case 0x89: // Secondary LE
|
|
switch(size) {
|
|
case 2:
|
|
addr = bswap16(addr);
|
|
break;
|
|
case 4:
|
|
addr = bswap32(addr);
|
|
break;
|
|
case 8:
|
|
addr = bswap64(addr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch(asi) {
|
|
case 0x10: // As if user primary
|
|
case 0x18: // As if user primary LE
|
|
case 0x80: // Primary
|
|
case 0x88: // Primary LE
|
|
if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
|
|
if (env->hpstate & HS_PRIV) {
|
|
switch(size) {
|
|
case 1:
|
|
stb_hypv(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_hypv(addr & ~1, val);
|
|
break;
|
|
case 4:
|
|
stl_hypv(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
default:
|
|
stq_hypv(addr & ~7, val);
|
|
break;
|
|
}
|
|
} else {
|
|
switch(size) {
|
|
case 1:
|
|
stb_kernel(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_kernel(addr & ~1, val);
|
|
break;
|
|
case 4:
|
|
stl_kernel(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
default:
|
|
stq_kernel(addr & ~7, val);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
switch(size) {
|
|
case 1:
|
|
stb_user(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_user(addr & ~1, val);
|
|
break;
|
|
case 4:
|
|
stl_user(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
default:
|
|
stq_user(addr & ~7, val);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x14: // Bypass
|
|
case 0x15: // Bypass, non-cacheable
|
|
case 0x1c: // Bypass LE
|
|
case 0x1d: // Bypass, non-cacheable LE
|
|
{
|
|
switch(size) {
|
|
case 1:
|
|
stb_phys(addr, val);
|
|
break;
|
|
case 2:
|
|
stw_phys(addr & ~1, val);
|
|
break;
|
|
case 4:
|
|
stl_phys(addr & ~3, val);
|
|
break;
|
|
case 8:
|
|
default:
|
|
stq_phys(addr & ~7, val);
|
|
break;
|
|
}
|
|
}
|
|
return;
|
|
case 0x04: // Nucleus
|
|
case 0x0c: // Nucleus Little Endian (LE)
|
|
case 0x11: // As if user secondary
|
|
case 0x19: // As if user secondary LE
|
|
case 0x24: // Nucleus quad LDD 128 bit atomic
|
|
case 0x2c: // Nucleus quad LDD 128 bit atomic
|
|
case 0x4a: // UPA config
|
|
case 0x81: // Secondary
|
|
case 0x89: // Secondary LE
|
|
// XXX
|
|
return;
|
|
case 0x45: // LSU
|
|
{
|
|
uint64_t oldreg;
|
|
|
|
oldreg = env->lsu;
|
|
env->lsu = val & (DMMU_E | IMMU_E);
|
|
// Mappings generated during D/I MMU disabled mode are
|
|
// invalid in normal mode
|
|
if (oldreg != env->lsu) {
|
|
DPRINTF_MMU("LSU change: 0x%" PRIx64 " -> 0x%" PRIx64 "\n", oldreg, env->lsu);
|
|
#ifdef DEBUG_MMU
|
|
dump_mmu(env);
|
|
#endif
|
|
tlb_flush(env, 1);
|
|
}
|
|
return;
|
|
}
|
|
case 0x50: // I-MMU regs
|
|
{
|
|
int reg = (addr >> 3) & 0xf;
|
|
uint64_t oldreg;
|
|
|
|
oldreg = env->immuregs[reg];
|
|
switch(reg) {
|
|
case 0: // RO
|
|
case 4:
|
|
return;
|
|
case 1: // Not in I-MMU
|
|
case 2:
|
|
case 7:
|
|
case 8:
|
|
return;
|
|
case 3: // SFSR
|
|
if ((val & 1) == 0)
|
|
val = 0; // Clear SFSR
|
|
break;
|
|
case 5: // TSB access
|
|
case 6: // Tag access
|
|
default:
|
|
break;
|
|
}
|
|
env->immuregs[reg] = val;
|
|
if (oldreg != env->immuregs[reg]) {
|
|
DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
|
|
}
|
|
#ifdef DEBUG_MMU
|
|
dump_mmu(env);
|
|
#endif
|
|
return;
|
|
}
|
|
case 0x54: // I-MMU data in
|
|
{
|
|
unsigned int i;
|
|
|
|
// Try finding an invalid entry
|
|
for (i = 0; i < 64; i++) {
|
|
if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
|
|
env->itlb_tag[i] = env->immuregs[6];
|
|
env->itlb_tte[i] = val;
|
|
return;
|
|
}
|
|
}
|
|
// Try finding an unlocked entry
|
|
for (i = 0; i < 64; i++) {
|
|
if ((env->itlb_tte[i] & 0x40) == 0) {
|
|
env->itlb_tag[i] = env->immuregs[6];
|
|
env->itlb_tte[i] = val;
|
|
return;
|
|
}
|
|
}
|
|
// error state?
|
|
return;
|
|
}
|
|
case 0x55: // I-MMU data access
|
|
{
|
|
unsigned int i = (addr >> 3) & 0x3f;
|
|
|
|
env->itlb_tag[i] = env->immuregs[6];
|
|
env->itlb_tte[i] = val;
|
|
return;
|
|
}
|
|
case 0x57: // I-MMU demap
|
|
// XXX
|
|
return;
|
|
case 0x58: // D-MMU regs
|
|
{
|
|
int reg = (addr >> 3) & 0xf;
|
|
uint64_t oldreg;
|
|
|
|
oldreg = env->dmmuregs[reg];
|
|
switch(reg) {
|
|
case 0: // RO
|
|
case 4:
|
|
return;
|
|
case 3: // SFSR
|
|
if ((val & 1) == 0) {
|
|
val = 0; // Clear SFSR, Fault address
|
|
env->dmmuregs[4] = 0;
|
|
}
|
|
env->dmmuregs[reg] = val;
|
|
break;
|
|
case 1: // Primary context
|
|
case 2: // Secondary context
|
|
case 5: // TSB access
|
|
case 6: // Tag access
|
|
case 7: // Virtual Watchpoint
|
|
case 8: // Physical Watchpoint
|
|
default:
|
|
break;
|
|
}
|
|
env->dmmuregs[reg] = val;
|
|
if (oldreg != env->dmmuregs[reg]) {
|
|
DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
|
|
}
|
|
#ifdef DEBUG_MMU
|
|
dump_mmu(env);
|
|
#endif
|
|
return;
|
|
}
|
|
case 0x5c: // D-MMU data in
|
|
{
|
|
unsigned int i;
|
|
|
|
// Try finding an invalid entry
|
|
for (i = 0; i < 64; i++) {
|
|
if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
|
|
env->dtlb_tag[i] = env->dmmuregs[6];
|
|
env->dtlb_tte[i] = val;
|
|
return;
|
|
}
|
|
}
|
|
// Try finding an unlocked entry
|
|
for (i = 0; i < 64; i++) {
|
|
if ((env->dtlb_tte[i] & 0x40) == 0) {
|
|
env->dtlb_tag[i] = env->dmmuregs[6];
|
|
env->dtlb_tte[i] = val;
|
|
return;
|
|
}
|
|
}
|
|
// error state?
|
|
return;
|
|
}
|
|
case 0x5d: // D-MMU data access
|
|
{
|
|
unsigned int i = (addr >> 3) & 0x3f;
|
|
|
|
env->dtlb_tag[i] = env->dmmuregs[6];
|
|
env->dtlb_tte[i] = val;
|
|
return;
|
|
}
|
|
case 0x5f: // D-MMU demap
|
|
case 0x49: // Interrupt data receive
|
|
// XXX
|
|
return;
|
|
case 0x51: // I-MMU 8k TSB pointer, RO
|
|
case 0x52: // I-MMU 64k TSB pointer, RO
|
|
case 0x56: // I-MMU tag read, RO
|
|
case 0x59: // D-MMU 8k TSB pointer, RO
|
|
case 0x5a: // D-MMU 64k TSB pointer, RO
|
|
case 0x5b: // D-MMU data pointer, RO
|
|
case 0x5e: // D-MMU tag read, RO
|
|
case 0x48: // Interrupt dispatch, RO
|
|
case 0x7f: // Incoming interrupt vector, RO
|
|
case 0x82: // Primary no-fault, RO
|
|
case 0x83: // Secondary no-fault, RO
|
|
case 0x8a: // Primary no-fault LE, RO
|
|
case 0x8b: // Secondary no-fault LE, RO
|
|
default:
|
|
do_unassigned_access(addr, 1, 0, 1);
|
|
return;
|
|
}
|
|
}
|
|
#endif /* CONFIG_USER_ONLY */
|
|
|
|
void helper_ldf_asi(target_ulong addr, int asi, int size, int rd)
|
|
{
|
|
unsigned int i;
|
|
target_ulong val;
|
|
|
|
switch (asi) {
|
|
case 0xf0: // Block load primary
|
|
case 0xf1: // Block load secondary
|
|
case 0xf8: // Block load primary LE
|
|
case 0xf9: // Block load secondary LE
|
|
if (rd & 7) {
|
|
raise_exception(TT_ILL_INSN);
|
|
return;
|
|
}
|
|
if (addr & 0x3f) {
|
|
raise_exception(TT_UNALIGNED);
|
|
return;
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
*(uint32_t *)&env->fpr[rd++] = helper_ld_asi(addr, asi & 0x8f, 4, 0);
|
|
addr += 4;
|
|
}
|
|
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
val = helper_ld_asi(addr, asi, size, 0);
|
|
switch(size) {
|
|
default:
|
|
case 4:
|
|
*((uint32_t *)&FT0) = val;
|
|
break;
|
|
case 8:
|
|
*((int64_t *)&DT0) = val;
|
|
break;
|
|
#if defined(CONFIG_USER_ONLY)
|
|
case 16:
|
|
// XXX
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void helper_stf_asi(target_ulong addr, int asi, int size, int rd)
|
|
{
|
|
unsigned int i;
|
|
target_ulong val = 0;
|
|
|
|
switch (asi) {
|
|
case 0xf0: // Block store primary
|
|
case 0xf1: // Block store secondary
|
|
case 0xf8: // Block store primary LE
|
|
case 0xf9: // Block store secondary LE
|
|
if (rd & 7) {
|
|
raise_exception(TT_ILL_INSN);
|
|
return;
|
|
}
|
|
if (addr & 0x3f) {
|
|
raise_exception(TT_UNALIGNED);
|
|
return;
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
val = *(uint32_t *)&env->fpr[rd++];
|
|
helper_st_asi(addr, val, asi & 0x8f, 4);
|
|
addr += 4;
|
|
}
|
|
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch(size) {
|
|
default:
|
|
case 4:
|
|
val = *((uint32_t *)&FT0);
|
|
break;
|
|
case 8:
|
|
val = *((int64_t *)&DT0);
|
|
break;
|
|
#if defined(CONFIG_USER_ONLY)
|
|
case 16:
|
|
// XXX
|
|
break;
|
|
#endif
|
|
}
|
|
helper_st_asi(addr, val, asi, size);
|
|
}
|
|
|
|
target_ulong helper_cas_asi(target_ulong addr, target_ulong val1,
|
|
target_ulong val2, uint32_t asi)
|
|
{
|
|
target_ulong ret;
|
|
|
|
val1 &= 0xffffffffUL;
|
|
ret = helper_ld_asi(addr, asi, 4, 0);
|
|
ret &= 0xffffffffUL;
|
|
if (val1 == ret)
|
|
helper_st_asi(addr, val2 & 0xffffffffUL, asi, 4);
|
|
return ret;
|
|
}
|
|
|
|
target_ulong helper_casx_asi(target_ulong addr, target_ulong val1,
|
|
target_ulong val2, uint32_t asi)
|
|
{
|
|
target_ulong ret;
|
|
|
|
ret = helper_ld_asi(addr, asi, 8, 0);
|
|
if (val1 == ret)
|
|
helper_st_asi(addr, val2, asi, 8);
|
|
return ret;
|
|
}
|
|
#endif /* TARGET_SPARC64 */
|
|
|
|
#ifndef TARGET_SPARC64
|
|
void helper_rett(void)
|
|
{
|
|
unsigned int cwp;
|
|
|
|
if (env->psret == 1)
|
|
raise_exception(TT_ILL_INSN);
|
|
|
|
env->psret = 1;
|
|
cwp = (env->cwp + 1) & (NWINDOWS - 1);
|
|
if (env->wim & (1 << cwp)) {
|
|
raise_exception(TT_WIN_UNF);
|
|
}
|
|
set_cwp(cwp);
|
|
env->psrs = env->psrps;
|
|
}
|
|
#endif
|
|
|
|
target_ulong helper_udiv(target_ulong a, target_ulong b)
|
|
{
|
|
uint64_t x0;
|
|
uint32_t x1;
|
|
|
|
x0 = a | ((uint64_t) (env->y) << 32);
|
|
x1 = b;
|
|
|
|
if (x1 == 0) {
|
|
raise_exception(TT_DIV_ZERO);
|
|
}
|
|
|
|
x0 = x0 / x1;
|
|
if (x0 > 0xffffffff) {
|
|
env->cc_src2 = 1;
|
|
return 0xffffffff;
|
|
} else {
|
|
env->cc_src2 = 0;
|
|
return x0;
|
|
}
|
|
}
|
|
|
|
target_ulong helper_sdiv(target_ulong a, target_ulong b)
|
|
{
|
|
int64_t x0;
|
|
int32_t x1;
|
|
|
|
x0 = a | ((int64_t) (env->y) << 32);
|
|
x1 = b;
|
|
|
|
if (x1 == 0) {
|
|
raise_exception(TT_DIV_ZERO);
|
|
}
|
|
|
|
x0 = x0 / x1;
|
|
if ((int32_t) x0 != x0) {
|
|
env->cc_src2 = 1;
|
|
return x0 < 0? 0x80000000: 0x7fffffff;
|
|
} else {
|
|
env->cc_src2 = 0;
|
|
return x0;
|
|
}
|
|
}
|
|
|
|
uint64_t helper_pack64(target_ulong high, target_ulong low)
|
|
{
|
|
return ((uint64_t)high << 32) | (uint64_t)(low & 0xffffffff);
|
|
}
|
|
|
|
void helper_ldfsr(void)
|
|
{
|
|
int rnd_mode;
|
|
|
|
PUT_FSR32(env, *((uint32_t *) &FT0));
|
|
switch (env->fsr & FSR_RD_MASK) {
|
|
case FSR_RD_NEAREST:
|
|
rnd_mode = float_round_nearest_even;
|
|
break;
|
|
default:
|
|
case FSR_RD_ZERO:
|
|
rnd_mode = float_round_to_zero;
|
|
break;
|
|
case FSR_RD_POS:
|
|
rnd_mode = float_round_up;
|
|
break;
|
|
case FSR_RD_NEG:
|
|
rnd_mode = float_round_down;
|
|
break;
|
|
}
|
|
set_float_rounding_mode(rnd_mode, &env->fp_status);
|
|
}
|
|
|
|
void helper_stfsr(void)
|
|
{
|
|
*((uint32_t *) &FT0) = GET_FSR32(env);
|
|
}
|
|
|
|
void helper_debug(void)
|
|
{
|
|
env->exception_index = EXCP_DEBUG;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
#ifndef TARGET_SPARC64
|
|
/* XXX: use another pointer for %iN registers to avoid slow wrapping
|
|
handling ? */
|
|
void helper_save(void)
|
|
{
|
|
uint32_t cwp;
|
|
|
|
cwp = (env->cwp - 1) & (NWINDOWS - 1);
|
|
if (env->wim & (1 << cwp)) {
|
|
raise_exception(TT_WIN_OVF);
|
|
}
|
|
set_cwp(cwp);
|
|
}
|
|
|
|
void helper_restore(void)
|
|
{
|
|
uint32_t cwp;
|
|
|
|
cwp = (env->cwp + 1) & (NWINDOWS - 1);
|
|
if (env->wim & (1 << cwp)) {
|
|
raise_exception(TT_WIN_UNF);
|
|
}
|
|
set_cwp(cwp);
|
|
}
|
|
|
|
void helper_wrpsr(target_ulong new_psr)
|
|
{
|
|
if ((new_psr & PSR_CWP) >= NWINDOWS)
|
|
raise_exception(TT_ILL_INSN);
|
|
else
|
|
PUT_PSR(env, new_psr);
|
|
}
|
|
|
|
target_ulong helper_rdpsr(void)
|
|
{
|
|
return GET_PSR(env);
|
|
}
|
|
|
|
#else
|
|
/* XXX: use another pointer for %iN registers to avoid slow wrapping
|
|
handling ? */
|
|
void helper_save(void)
|
|
{
|
|
uint32_t cwp;
|
|
|
|
cwp = (env->cwp - 1) & (NWINDOWS - 1);
|
|
if (env->cansave == 0) {
|
|
raise_exception(TT_SPILL | (env->otherwin != 0 ?
|
|
(TT_WOTHER | ((env->wstate & 0x38) >> 1)):
|
|
((env->wstate & 0x7) << 2)));
|
|
} else {
|
|
if (env->cleanwin - env->canrestore == 0) {
|
|
// XXX Clean windows without trap
|
|
raise_exception(TT_CLRWIN);
|
|
} else {
|
|
env->cansave--;
|
|
env->canrestore++;
|
|
set_cwp(cwp);
|
|
}
|
|
}
|
|
}
|
|
|
|
void helper_restore(void)
|
|
{
|
|
uint32_t cwp;
|
|
|
|
cwp = (env->cwp + 1) & (NWINDOWS - 1);
|
|
if (env->canrestore == 0) {
|
|
raise_exception(TT_FILL | (env->otherwin != 0 ?
|
|
(TT_WOTHER | ((env->wstate & 0x38) >> 1)):
|
|
((env->wstate & 0x7) << 2)));
|
|
} else {
|
|
env->cansave++;
|
|
env->canrestore--;
|
|
set_cwp(cwp);
|
|
}
|
|
}
|
|
|
|
void helper_flushw(void)
|
|
{
|
|
if (env->cansave != NWINDOWS - 2) {
|
|
raise_exception(TT_SPILL | (env->otherwin != 0 ?
|
|
(TT_WOTHER | ((env->wstate & 0x38) >> 1)):
|
|
((env->wstate & 0x7) << 2)));
|
|
}
|
|
}
|
|
|
|
void helper_saved(void)
|
|
{
|
|
env->cansave++;
|
|
if (env->otherwin == 0)
|
|
env->canrestore--;
|
|
else
|
|
env->otherwin--;
|
|
}
|
|
|
|
void helper_restored(void)
|
|
{
|
|
env->canrestore++;
|
|
if (env->cleanwin < NWINDOWS - 1)
|
|
env->cleanwin++;
|
|
if (env->otherwin == 0)
|
|
env->cansave--;
|
|
else
|
|
env->otherwin--;
|
|
}
|
|
|
|
target_ulong helper_rdccr(void)
|
|
{
|
|
return GET_CCR(env);
|
|
}
|
|
|
|
void helper_wrccr(target_ulong new_ccr)
|
|
{
|
|
PUT_CCR(env, new_ccr);
|
|
}
|
|
|
|
// CWP handling is reversed in V9, but we still use the V8 register
|
|
// order.
|
|
target_ulong helper_rdcwp(void)
|
|
{
|
|
return GET_CWP64(env);
|
|
}
|
|
|
|
void helper_wrcwp(target_ulong new_cwp)
|
|
{
|
|
PUT_CWP64(env, new_cwp);
|
|
}
|
|
|
|
// This function uses non-native bit order
|
|
#define GET_FIELD(X, FROM, TO) \
|
|
((X) >> (63 - (TO)) & ((1ULL << ((TO) - (FROM) + 1)) - 1))
|
|
|
|
// This function uses the order in the manuals, i.e. bit 0 is 2^0
|
|
#define GET_FIELD_SP(X, FROM, TO) \
|
|
GET_FIELD(X, 63 - (TO), 63 - (FROM))
|
|
|
|
target_ulong helper_array8(target_ulong pixel_addr, target_ulong cubesize)
|
|
{
|
|
return (GET_FIELD_SP(pixel_addr, 60, 63) << (17 + 2 * cubesize)) |
|
|
(GET_FIELD_SP(pixel_addr, 39, 39 + cubesize - 1) << (17 + cubesize)) |
|
|
(GET_FIELD_SP(pixel_addr, 17 + cubesize - 1, 17) << 17) |
|
|
(GET_FIELD_SP(pixel_addr, 56, 59) << 13) |
|
|
(GET_FIELD_SP(pixel_addr, 35, 38) << 9) |
|
|
(GET_FIELD_SP(pixel_addr, 13, 16) << 5) |
|
|
(((pixel_addr >> 55) & 1) << 4) |
|
|
(GET_FIELD_SP(pixel_addr, 33, 34) << 2) |
|
|
GET_FIELD_SP(pixel_addr, 11, 12);
|
|
}
|
|
|
|
target_ulong helper_alignaddr(target_ulong addr, target_ulong offset)
|
|
{
|
|
uint64_t tmp;
|
|
|
|
tmp = addr + offset;
|
|
env->gsr &= ~7ULL;
|
|
env->gsr |= tmp & 7ULL;
|
|
return tmp & ~7ULL;
|
|
}
|
|
|
|
target_ulong helper_popc(target_ulong val)
|
|
{
|
|
return ctpop64(val);
|
|
}
|
|
|
|
static inline uint64_t *get_gregset(uint64_t pstate)
|
|
{
|
|
switch (pstate) {
|
|
default:
|
|
case 0:
|
|
return env->bgregs;
|
|
case PS_AG:
|
|
return env->agregs;
|
|
case PS_MG:
|
|
return env->mgregs;
|
|
case PS_IG:
|
|
return env->igregs;
|
|
}
|
|
}
|
|
|
|
static inline void change_pstate(uint64_t new_pstate)
|
|
{
|
|
uint64_t pstate_regs, new_pstate_regs;
|
|
uint64_t *src, *dst;
|
|
|
|
pstate_regs = env->pstate & 0xc01;
|
|
new_pstate_regs = new_pstate & 0xc01;
|
|
if (new_pstate_regs != pstate_regs) {
|
|
// Switch global register bank
|
|
src = get_gregset(new_pstate_regs);
|
|
dst = get_gregset(pstate_regs);
|
|
memcpy32(dst, env->gregs);
|
|
memcpy32(env->gregs, src);
|
|
}
|
|
env->pstate = new_pstate;
|
|
}
|
|
|
|
void helper_wrpstate(target_ulong new_state)
|
|
{
|
|
change_pstate(new_state & 0xf3f);
|
|
}
|
|
|
|
void helper_done(void)
|
|
{
|
|
env->tl--;
|
|
env->tsptr = &env->ts[env->tl];
|
|
env->pc = env->tsptr->tpc;
|
|
env->npc = env->tsptr->tnpc + 4;
|
|
PUT_CCR(env, env->tsptr->tstate >> 32);
|
|
env->asi = (env->tsptr->tstate >> 24) & 0xff;
|
|
change_pstate((env->tsptr->tstate >> 8) & 0xf3f);
|
|
PUT_CWP64(env, env->tsptr->tstate & 0xff);
|
|
}
|
|
|
|
void helper_retry(void)
|
|
{
|
|
env->tl--;
|
|
env->tsptr = &env->ts[env->tl];
|
|
env->pc = env->tsptr->tpc;
|
|
env->npc = env->tsptr->tnpc;
|
|
PUT_CCR(env, env->tsptr->tstate >> 32);
|
|
env->asi = (env->tsptr->tstate >> 24) & 0xff;
|
|
change_pstate((env->tsptr->tstate >> 8) & 0xf3f);
|
|
PUT_CWP64(env, env->tsptr->tstate & 0xff);
|
|
}
|
|
#endif
|
|
|
|
void set_cwp(int new_cwp)
|
|
{
|
|
/* put the modified wrap registers at their proper location */
|
|
if (env->cwp == (NWINDOWS - 1))
|
|
memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
|
|
env->cwp = new_cwp;
|
|
/* put the wrap registers at their temporary location */
|
|
if (new_cwp == (NWINDOWS - 1))
|
|
memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
|
|
env->regwptr = env->regbase + (new_cwp * 16);
|
|
REGWPTR = env->regwptr;
|
|
}
|
|
|
|
void cpu_set_cwp(CPUState *env1, int new_cwp)
|
|
{
|
|
CPUState *saved_env;
|
|
#ifdef reg_REGWPTR
|
|
target_ulong *saved_regwptr;
|
|
#endif
|
|
|
|
saved_env = env;
|
|
#ifdef reg_REGWPTR
|
|
saved_regwptr = REGWPTR;
|
|
#endif
|
|
env = env1;
|
|
set_cwp(new_cwp);
|
|
env = saved_env;
|
|
#ifdef reg_REGWPTR
|
|
REGWPTR = saved_regwptr;
|
|
#endif
|
|
}
|
|
|
|
#ifdef TARGET_SPARC64
|
|
#ifdef DEBUG_PCALL
|
|
static const char * const excp_names[0x50] = {
|
|
[TT_TFAULT] = "Instruction Access Fault",
|
|
[TT_TMISS] = "Instruction Access MMU Miss",
|
|
[TT_CODE_ACCESS] = "Instruction Access Error",
|
|
[TT_ILL_INSN] = "Illegal Instruction",
|
|
[TT_PRIV_INSN] = "Privileged Instruction",
|
|
[TT_NFPU_INSN] = "FPU Disabled",
|
|
[TT_FP_EXCP] = "FPU Exception",
|
|
[TT_TOVF] = "Tag Overflow",
|
|
[TT_CLRWIN] = "Clean Windows",
|
|
[TT_DIV_ZERO] = "Division By Zero",
|
|
[TT_DFAULT] = "Data Access Fault",
|
|
[TT_DMISS] = "Data Access MMU Miss",
|
|
[TT_DATA_ACCESS] = "Data Access Error",
|
|
[TT_DPROT] = "Data Protection Error",
|
|
[TT_UNALIGNED] = "Unaligned Memory Access",
|
|
[TT_PRIV_ACT] = "Privileged Action",
|
|
[TT_EXTINT | 0x1] = "External Interrupt 1",
|
|
[TT_EXTINT | 0x2] = "External Interrupt 2",
|
|
[TT_EXTINT | 0x3] = "External Interrupt 3",
|
|
[TT_EXTINT | 0x4] = "External Interrupt 4",
|
|
[TT_EXTINT | 0x5] = "External Interrupt 5",
|
|
[TT_EXTINT | 0x6] = "External Interrupt 6",
|
|
[TT_EXTINT | 0x7] = "External Interrupt 7",
|
|
[TT_EXTINT | 0x8] = "External Interrupt 8",
|
|
[TT_EXTINT | 0x9] = "External Interrupt 9",
|
|
[TT_EXTINT | 0xa] = "External Interrupt 10",
|
|
[TT_EXTINT | 0xb] = "External Interrupt 11",
|
|
[TT_EXTINT | 0xc] = "External Interrupt 12",
|
|
[TT_EXTINT | 0xd] = "External Interrupt 13",
|
|
[TT_EXTINT | 0xe] = "External Interrupt 14",
|
|
[TT_EXTINT | 0xf] = "External Interrupt 15",
|
|
};
|
|
#endif
|
|
|
|
void do_interrupt(int intno)
|
|
{
|
|
#ifdef DEBUG_PCALL
|
|
if (loglevel & CPU_LOG_INT) {
|
|
static int count;
|
|
const char *name;
|
|
|
|
if (intno < 0 || intno >= 0x180 || (intno > 0x4f && intno < 0x80))
|
|
name = "Unknown";
|
|
else if (intno >= 0x100)
|
|
name = "Trap Instruction";
|
|
else if (intno >= 0xc0)
|
|
name = "Window Fill";
|
|
else if (intno >= 0x80)
|
|
name = "Window Spill";
|
|
else {
|
|
name = excp_names[intno];
|
|
if (!name)
|
|
name = "Unknown";
|
|
}
|
|
|
|
fprintf(logfile, "%6d: %s (v=%04x) pc=%016" PRIx64 " npc=%016" PRIx64
|
|
" SP=%016" PRIx64 "\n",
|
|
count, name, intno,
|
|
env->pc,
|
|
env->npc, env->regwptr[6]);
|
|
cpu_dump_state(env, logfile, fprintf, 0);
|
|
#if 0
|
|
{
|
|
int i;
|
|
uint8_t *ptr;
|
|
|
|
fprintf(logfile, " code=");
|
|
ptr = (uint8_t *)env->pc;
|
|
for(i = 0; i < 16; i++) {
|
|
fprintf(logfile, " %02x", ldub(ptr + i));
|
|
}
|
|
fprintf(logfile, "\n");
|
|
}
|
|
#endif
|
|
count++;
|
|
}
|
|
#endif
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
if (env->tl == MAXTL) {
|
|
cpu_abort(env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
|
|
return;
|
|
}
|
|
#endif
|
|
env->tsptr->tstate = ((uint64_t)GET_CCR(env) << 32) |
|
|
((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) |
|
|
GET_CWP64(env);
|
|
env->tsptr->tpc = env->pc;
|
|
env->tsptr->tnpc = env->npc;
|
|
env->tsptr->tt = intno;
|
|
change_pstate(PS_PEF | PS_PRIV | PS_AG);
|
|
|
|
if (intno == TT_CLRWIN)
|
|
set_cwp((env->cwp - 1) & (NWINDOWS - 1));
|
|
else if ((intno & 0x1c0) == TT_SPILL)
|
|
set_cwp((env->cwp - env->cansave - 2) & (NWINDOWS - 1));
|
|
else if ((intno & 0x1c0) == TT_FILL)
|
|
set_cwp((env->cwp + 1) & (NWINDOWS - 1));
|
|
env->tbr &= ~0x7fffULL;
|
|
env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
|
|
if (env->tl < MAXTL - 1) {
|
|
env->tl++;
|
|
} else {
|
|
env->pstate |= PS_RED;
|
|
if (env->tl != MAXTL)
|
|
env->tl++;
|
|
}
|
|
env->tsptr = &env->ts[env->tl];
|
|
env->pc = env->tbr;
|
|
env->npc = env->pc + 4;
|
|
env->exception_index = 0;
|
|
}
|
|
#else
|
|
#ifdef DEBUG_PCALL
|
|
static const char * const excp_names[0x80] = {
|
|
[TT_TFAULT] = "Instruction Access Fault",
|
|
[TT_ILL_INSN] = "Illegal Instruction",
|
|
[TT_PRIV_INSN] = "Privileged Instruction",
|
|
[TT_NFPU_INSN] = "FPU Disabled",
|
|
[TT_WIN_OVF] = "Window Overflow",
|
|
[TT_WIN_UNF] = "Window Underflow",
|
|
[TT_UNALIGNED] = "Unaligned Memory Access",
|
|
[TT_FP_EXCP] = "FPU Exception",
|
|
[TT_DFAULT] = "Data Access Fault",
|
|
[TT_TOVF] = "Tag Overflow",
|
|
[TT_EXTINT | 0x1] = "External Interrupt 1",
|
|
[TT_EXTINT | 0x2] = "External Interrupt 2",
|
|
[TT_EXTINT | 0x3] = "External Interrupt 3",
|
|
[TT_EXTINT | 0x4] = "External Interrupt 4",
|
|
[TT_EXTINT | 0x5] = "External Interrupt 5",
|
|
[TT_EXTINT | 0x6] = "External Interrupt 6",
|
|
[TT_EXTINT | 0x7] = "External Interrupt 7",
|
|
[TT_EXTINT | 0x8] = "External Interrupt 8",
|
|
[TT_EXTINT | 0x9] = "External Interrupt 9",
|
|
[TT_EXTINT | 0xa] = "External Interrupt 10",
|
|
[TT_EXTINT | 0xb] = "External Interrupt 11",
|
|
[TT_EXTINT | 0xc] = "External Interrupt 12",
|
|
[TT_EXTINT | 0xd] = "External Interrupt 13",
|
|
[TT_EXTINT | 0xe] = "External Interrupt 14",
|
|
[TT_EXTINT | 0xf] = "External Interrupt 15",
|
|
[TT_TOVF] = "Tag Overflow",
|
|
[TT_CODE_ACCESS] = "Instruction Access Error",
|
|
[TT_DATA_ACCESS] = "Data Access Error",
|
|
[TT_DIV_ZERO] = "Division By Zero",
|
|
[TT_NCP_INSN] = "Coprocessor Disabled",
|
|
};
|
|
#endif
|
|
|
|
void do_interrupt(int intno)
|
|
{
|
|
int cwp;
|
|
|
|
#ifdef DEBUG_PCALL
|
|
if (loglevel & CPU_LOG_INT) {
|
|
static int count;
|
|
const char *name;
|
|
|
|
if (intno < 0 || intno >= 0x100)
|
|
name = "Unknown";
|
|
else if (intno >= 0x80)
|
|
name = "Trap Instruction";
|
|
else {
|
|
name = excp_names[intno];
|
|
if (!name)
|
|
name = "Unknown";
|
|
}
|
|
|
|
fprintf(logfile, "%6d: %s (v=%02x) pc=%08x npc=%08x SP=%08x\n",
|
|
count, name, intno,
|
|
env->pc,
|
|
env->npc, env->regwptr[6]);
|
|
cpu_dump_state(env, logfile, fprintf, 0);
|
|
#if 0
|
|
{
|
|
int i;
|
|
uint8_t *ptr;
|
|
|
|
fprintf(logfile, " code=");
|
|
ptr = (uint8_t *)env->pc;
|
|
for(i = 0; i < 16; i++) {
|
|
fprintf(logfile, " %02x", ldub(ptr + i));
|
|
}
|
|
fprintf(logfile, "\n");
|
|
}
|
|
#endif
|
|
count++;
|
|
}
|
|
#endif
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
if (env->psret == 0) {
|
|
cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);
|
|
return;
|
|
}
|
|
#endif
|
|
env->psret = 0;
|
|
cwp = (env->cwp - 1) & (NWINDOWS - 1);
|
|
set_cwp(cwp);
|
|
env->regwptr[9] = env->pc;
|
|
env->regwptr[10] = env->npc;
|
|
env->psrps = env->psrs;
|
|
env->psrs = 1;
|
|
env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
|
|
env->pc = env->tbr;
|
|
env->npc = env->pc + 4;
|
|
env->exception_index = 0;
|
|
}
|
|
#endif
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
|
|
static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
|
|
void *retaddr);
|
|
|
|
#define MMUSUFFIX _mmu
|
|
#define ALIGNED_ONLY
|
|
#ifdef __s390__
|
|
# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL))
|
|
#else
|
|
# define GETPC() (__builtin_return_address(0))
|
|
#endif
|
|
|
|
#define SHIFT 0
|
|
#include "softmmu_template.h"
|
|
|
|
#define SHIFT 1
|
|
#include "softmmu_template.h"
|
|
|
|
#define SHIFT 2
|
|
#include "softmmu_template.h"
|
|
|
|
#define SHIFT 3
|
|
#include "softmmu_template.h"
|
|
|
|
static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
|
|
void *retaddr)
|
|
{
|
|
#ifdef DEBUG_UNALIGNED
|
|
printf("Unaligned access to 0x%x from 0x%x\n", addr, env->pc);
|
|
#endif
|
|
raise_exception(TT_UNALIGNED);
|
|
}
|
|
|
|
/* try to fill the TLB and return an exception if error. If retaddr is
|
|
NULL, it means that the function was called in C code (i.e. not
|
|
from generated code or from helper.c) */
|
|
/* XXX: fix it to restore all registers */
|
|
void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
|
|
{
|
|
TranslationBlock *tb;
|
|
int ret;
|
|
unsigned long pc;
|
|
CPUState *saved_env;
|
|
|
|
/* XXX: hack to restore env in all cases, even if not called from
|
|
generated code */
|
|
saved_env = env;
|
|
env = cpu_single_env;
|
|
|
|
ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
|
if (ret) {
|
|
if (retaddr) {
|
|
/* now we have a real cpu fault */
|
|
pc = (unsigned long)retaddr;
|
|
tb = tb_find_pc(pc);
|
|
if (tb) {
|
|
/* the PC is inside the translated code. It means that we have
|
|
a virtual CPU fault */
|
|
cpu_restore_state(tb, env, pc, (void *)T2);
|
|
}
|
|
}
|
|
cpu_loop_exit();
|
|
}
|
|
env = saved_env;
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifndef TARGET_SPARC64
|
|
void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
|
|
int is_asi)
|
|
{
|
|
CPUState *saved_env;
|
|
|
|
/* XXX: hack to restore env in all cases, even if not called from
|
|
generated code */
|
|
saved_env = env;
|
|
env = cpu_single_env;
|
|
#ifdef DEBUG_UNASSIGNED
|
|
if (is_asi)
|
|
printf("Unassigned mem %s access to " TARGET_FMT_plx " asi 0x%02x from "
|
|
TARGET_FMT_lx "\n",
|
|
is_exec ? "exec" : is_write ? "write" : "read", addr, is_asi,
|
|
env->pc);
|
|
else
|
|
printf("Unassigned mem %s access to " TARGET_FMT_plx " from "
|
|
TARGET_FMT_lx "\n",
|
|
is_exec ? "exec" : is_write ? "write" : "read", addr, env->pc);
|
|
#endif
|
|
if (env->mmuregs[3]) /* Fault status register */
|
|
env->mmuregs[3] = 1; /* overflow (not read before another fault) */
|
|
if (is_asi)
|
|
env->mmuregs[3] |= 1 << 16;
|
|
if (env->psrs)
|
|
env->mmuregs[3] |= 1 << 5;
|
|
if (is_exec)
|
|
env->mmuregs[3] |= 1 << 6;
|
|
if (is_write)
|
|
env->mmuregs[3] |= 1 << 7;
|
|
env->mmuregs[3] |= (5 << 2) | 2;
|
|
env->mmuregs[4] = addr; /* Fault address register */
|
|
if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
|
|
if (is_exec)
|
|
raise_exception(TT_CODE_ACCESS);
|
|
else
|
|
raise_exception(TT_DATA_ACCESS);
|
|
}
|
|
env = saved_env;
|
|
}
|
|
#else
|
|
void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
|
|
int is_asi)
|
|
{
|
|
#ifdef DEBUG_UNASSIGNED
|
|
CPUState *saved_env;
|
|
|
|
/* XXX: hack to restore env in all cases, even if not called from
|
|
generated code */
|
|
saved_env = env;
|
|
env = cpu_single_env;
|
|
printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n",
|
|
addr, env->pc);
|
|
env = saved_env;
|
|
#endif
|
|
if (is_exec)
|
|
raise_exception(TT_CODE_ACCESS);
|
|
else
|
|
raise_exception(TT_DATA_ACCESS);
|
|
}
|
|
#endif
|
|
|