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https://github.com/qemu/qemu.git
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ba3c64fb47
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1694 c046a42c-6fe2-441c-8c8c-71466251a162
278 lines
7.7 KiB
C
278 lines
7.7 KiB
C
#ifndef CPU_SPARC_H
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#define CPU_SPARC_H
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#include "config.h"
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#if !defined(TARGET_SPARC64)
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#define TARGET_LONG_BITS 32
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#define TARGET_FPREGS 32
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#define TARGET_PAGE_BITS 12 /* 4k */
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#else
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#define TARGET_LONG_BITS 64
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#define TARGET_FPREGS 64
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#define TARGET_PAGE_BITS 12 /* XXX */
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#endif
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#define TARGET_FPREG_T float
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#include "cpu-defs.h"
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#include "softfloat.h"
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#define TARGET_HAS_ICE 1
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/*#define EXCP_INTERRUPT 0x100*/
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/* trap definitions */
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#ifndef TARGET_SPARC64
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#define TT_TFAULT 0x01
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#define TT_ILL_INSN 0x02
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#define TT_PRIV_INSN 0x03
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#define TT_NFPU_INSN 0x04
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#define TT_WIN_OVF 0x05
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#define TT_WIN_UNF 0x06
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#define TT_FP_EXCP 0x08
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#define TT_DFAULT 0x09
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#define TT_EXTINT 0x10
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#define TT_DIV_ZERO 0x2a
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#define TT_TRAP 0x80
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#else
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#define TT_TFAULT 0x08
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#define TT_TMISS 0x09
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#define TT_ILL_INSN 0x10
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#define TT_PRIV_INSN 0x11
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#define TT_NFPU_INSN 0x20
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#define TT_FP_EXCP 0x21
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#define TT_CLRWIN 0x24
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#define TT_DIV_ZERO 0x28
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#define TT_DFAULT 0x30
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#define TT_DMISS 0x31
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#define TT_DPROT 0x32
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#define TT_PRIV_ACT 0x37
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#define TT_EXTINT 0x40
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#define TT_SPILL 0x80
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#define TT_FILL 0xc0
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#define TT_WOTHER 0x10
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#define TT_TRAP 0x100
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#endif
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#define PSR_NEG (1<<23)
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#define PSR_ZERO (1<<22)
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#define PSR_OVF (1<<21)
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#define PSR_CARRY (1<<20)
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#define PSR_ICC (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
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#define PSR_EF (1<<12)
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#define PSR_PIL 0xf00
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#define PSR_S (1<<7)
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#define PSR_PS (1<<6)
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#define PSR_ET (1<<5)
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#define PSR_CWP 0x1f
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/* Trap base register */
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#define TBR_BASE_MASK 0xfffff000
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#if defined(TARGET_SPARC64)
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#define PS_IG (1<<11)
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#define PS_MG (1<<10)
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#define PS_RED (1<<5)
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#define PS_PEF (1<<4)
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#define PS_AM (1<<3)
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#define PS_PRIV (1<<2)
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#define PS_IE (1<<1)
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#define PS_AG (1<<0)
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#endif
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/* Fcc */
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#define FSR_RD1 (1<<31)
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#define FSR_RD0 (1<<30)
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#define FSR_RD_MASK (FSR_RD1 | FSR_RD0)
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#define FSR_RD_NEAREST 0
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#define FSR_RD_ZERO FSR_RD0
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#define FSR_RD_POS FSR_RD1
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#define FSR_RD_NEG (FSR_RD1 | FSR_RD0)
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#define FSR_NVM (1<<27)
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#define FSR_OFM (1<<26)
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#define FSR_UFM (1<<25)
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#define FSR_DZM (1<<24)
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#define FSR_NXM (1<<23)
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#define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
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#define FSR_NVA (1<<9)
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#define FSR_OFA (1<<8)
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#define FSR_UFA (1<<7)
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#define FSR_DZA (1<<6)
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#define FSR_NXA (1<<5)
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#define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
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#define FSR_NVC (1<<4)
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#define FSR_OFC (1<<3)
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#define FSR_UFC (1<<2)
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#define FSR_DZC (1<<1)
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#define FSR_NXC (1<<0)
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#define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
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#define FSR_FTT2 (1<<16)
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#define FSR_FTT1 (1<<15)
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#define FSR_FTT0 (1<<14)
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#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
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#define FSR_FTT_IEEE_EXCP (1 << 14)
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#define FSR_FTT_UNIMPFPOP (3 << 14)
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#define FSR_FTT_INVAL_FPR (6 << 14)
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#define FSR_FCC1 (1<<11)
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#define FSR_FCC0 (1<<10)
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/* MMU */
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#define MMU_E (1<<0)
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#define MMU_NF (1<<1)
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#define PTE_ENTRYTYPE_MASK 3
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#define PTE_ACCESS_MASK 0x1c
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#define PTE_ACCESS_SHIFT 2
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#define PTE_PPN_SHIFT 7
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#define PTE_ADDR_MASK 0xffffff00
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#define PG_ACCESSED_BIT 5
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#define PG_MODIFIED_BIT 6
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#define PG_CACHE_BIT 7
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#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
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#define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
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#define PG_CACHE_MASK (1 << PG_CACHE_BIT)
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/* 2 <= NWINDOWS <= 32. In QEMU it must also be a power of two. */
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#define NWINDOWS 8
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typedef struct CPUSPARCState {
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target_ulong gregs[8]; /* general registers */
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target_ulong *regwptr; /* pointer to current register window */
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TARGET_FPREG_T fpr[TARGET_FPREGS]; /* floating point registers */
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target_ulong pc; /* program counter */
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target_ulong npc; /* next program counter */
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target_ulong y; /* multiply/divide register */
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uint32_t psr; /* processor state register */
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target_ulong fsr; /* FPU state register */
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uint32_t cwp; /* index of current register window (extracted
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from PSR) */
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uint32_t wim; /* window invalid mask */
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target_ulong tbr; /* trap base register */
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int psrs; /* supervisor mode (extracted from PSR) */
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int psrps; /* previous supervisor mode */
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int psret; /* enable traps */
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uint32_t psrpil; /* interrupt level */
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int psref; /* enable fpu */
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jmp_buf jmp_env;
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int user_mode_only;
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int exception_index;
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int interrupt_index;
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int interrupt_request;
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int halted;
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/* NOTE: we allow 8 more registers to handle wrapping */
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target_ulong regbase[NWINDOWS * 16 + 8];
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CPU_COMMON
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/* MMU regs */
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#if defined(TARGET_SPARC64)
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uint64_t lsu;
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#define DMMU_E 0x8
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#define IMMU_E 0x4
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uint64_t immuregs[16];
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uint64_t dmmuregs[16];
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uint64_t itlb_tag[64];
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uint64_t itlb_tte[64];
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uint64_t dtlb_tag[64];
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uint64_t dtlb_tte[64];
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#else
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uint32_t mmuregs[16];
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#endif
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/* temporary float registers */
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float ft0, ft1;
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double dt0, dt1;
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float_status fp_status;
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#if defined(TARGET_SPARC64)
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#define MAXTL 4
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uint64_t t0, t1, t2;
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uint64_t tpc[MAXTL];
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uint64_t tnpc[MAXTL];
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uint64_t tstate[MAXTL];
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uint32_t tt[MAXTL];
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uint32_t xcc; /* Extended integer condition codes */
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uint32_t asi;
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uint32_t pstate;
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uint32_t tl;
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uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
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uint64_t agregs[8]; /* alternate general registers */
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uint64_t bgregs[8]; /* backup for normal global registers */
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uint64_t igregs[8]; /* interrupt general registers */
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uint64_t mgregs[8]; /* mmu general registers */
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uint64_t version;
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uint64_t fprs;
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uint64_t tick_cmpr, stick_cmpr;
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#endif
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#if !defined(TARGET_SPARC64) && !defined(reg_T2)
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target_ulong t2;
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#endif
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} CPUSPARCState;
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#if defined(TARGET_SPARC64)
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#define GET_FSR32(env) (env->fsr & 0xcfc1ffff)
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#define PUT_FSR32(env, val) do { uint32_t _tmp = val; \
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env->fsr = (_tmp & 0xcfc1c3ff) | (env->fsr & 0x3f00000000ULL); \
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} while (0)
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#define GET_FSR64(env) (env->fsr & 0x3fcfc1ffffULL)
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#define PUT_FSR64(env, val) do { uint64_t _tmp = val; \
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env->fsr = _tmp & 0x3fcfc1c3ffULL; \
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} while (0)
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// Manuf 0x17, version 0x11, mask 0 (UltraSparc-II)
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#define GET_VER(env) ((0x17ULL << 48) | (0x11ULL << 32) | \
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(0 << 24) | (MAXTL << 8) | (NWINDOWS - 1))
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#else
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#define GET_FSR32(env) (env->fsr)
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#define PUT_FSR32(env, val) do { uint32_t _tmp = val; \
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env->fsr = _tmp & 0xcfc1ffff; \
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} while (0)
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#endif
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CPUSPARCState *cpu_sparc_init(void);
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int cpu_sparc_exec(CPUSPARCState *s);
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int cpu_sparc_close(CPUSPARCState *s);
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void cpu_get_fp64(uint64_t *pmant, uint16_t *pexp, double f);
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double cpu_put_fp64(uint64_t mant, uint16_t exp);
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/* Fake impl 0, version 4 */
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#define GET_PSR(env) ((0 << 28) | (4 << 24) | (env->psr & PSR_ICC) | \
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(env->psref? PSR_EF : 0) | \
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(env->psrpil << 8) | \
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(env->psrs? PSR_S : 0) | \
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(env->psrps? PSR_PS : 0) | \
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(env->psret? PSR_ET : 0) | env->cwp)
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#ifndef NO_CPU_IO_DEFS
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void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);
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#endif
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#define PUT_PSR(env, val) do { int _tmp = val; \
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env->psr = _tmp & PSR_ICC; \
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env->psref = (_tmp & PSR_EF)? 1 : 0; \
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env->psrpil = (_tmp & PSR_PIL) >> 8; \
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env->psrs = (_tmp & PSR_S)? 1 : 0; \
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env->psrps = (_tmp & PSR_PS)? 1 : 0; \
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env->psret = (_tmp & PSR_ET)? 1 : 0; \
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cpu_set_cwp(env, _tmp & PSR_CWP & (NWINDOWS - 1)); \
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} while (0)
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#ifdef TARGET_SPARC64
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#define GET_CCR(env) ((env->xcc << 4) | (env->psr & PSR_ICC))
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#define PUT_CCR(env, val) do { int _tmp = val; \
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env->xcc = _tmp >> 4; \
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env->psr = (_tmp & 0xf) << 20; \
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} while (0)
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#endif
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struct siginfo;
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int cpu_sparc_signal_handler(int hostsignum, struct siginfo *info, void *puc);
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#include "cpu-all.h"
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#endif
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