101 lines
5.0 KiB
C
101 lines
5.0 KiB
C
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_MODRM_H_
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#define COSMOPOLITAN_TOOL_BUILD_LIB_MODRM_H_
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#include "tool/build/lib/abp.h"
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#include "tool/build/lib/machine.h"
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#define Rex(x) ((x & 000000000020) >> 004)
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#define Osz(x) ((x & 000000000040) >> 005)
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#define Rep(x) ((x & 030000000000) >> 036)
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#define Rexr(x) ((x & 000000000010) >> 003)
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#define Rexw(x) ((x & 000000000100) >> 006)
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#define Rexb(x) ((x & 000000002000) >> 012)
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#define Sego(x) ((x & 000007000000) >> 022)
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#define Mode(x) ((x & 001400000000) >> 032)
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#define Eamode(x) ((x & 000300000000) >> 030)
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#define RexbRm(x) ((x & 000000003600) >> 007)
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#define RexrReg(x) ((x & 000000000017) >> 000)
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#define RegLog2(x) ((x & 006000000000) >> 034)
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#define ModrmRm(x) ((x & 000000001600) >> 007)
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#define ModrmReg(x) ((x & 000000000007) >> 000)
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#define ModrmSrm(x) ((x & 000000070000) >> 014)
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#define ModrmMod(x) ((x & 000060000000) >> 026)
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#define Modrm(x) (ModrmMod(x) << 6 | ModrmReg(x) << 3 | ModrmRm(x))
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define RexbBase(m, x) (Rexb(x) << 3 | m->xedd->op.base)
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#define AddrByteReg(m, k) ((uint8_t *)m->reg + kByteReg[k])
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#define ByteRexrReg(m, x) AddrByteReg(m, (x & 00000000037) >> 0)
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#define ByteRexbRm(m, x) AddrByteReg(m, (x & 00000007600) >> 7)
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#define ByteRexbSrm(m, x) AddrByteReg(m, (x & 00000370000) >> 12)
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#define RegSrm(m, x) Abp8(m->reg[(x & 00000070000) >> 12])
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#define RegRexbRm(m, x) Abp8(m->reg[RexbRm(x)])
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#define RegRexbSrm(m, x) Abp8(m->reg[(x & 00000170000) >> 12])
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#define RegRexrReg(m, x) Abp8(m->reg[RexrReg(x)])
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#define RegRexbBase(m, x) Abp8(m->reg[RexbBase(m, x)])
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#define RegRexxIndex(m) Abp8(m->reg[m->xedd->op.rexx << 3 | m->xedd->op.index])
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#define MmRm(m, x) Abp16(m->xmm[(x & 00000001600) >> 7])
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#define MmReg(m, x) Abp16(m->xmm[(x & 00000000007) >> 0])
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#define XmmRexbRm(m, x) Abp16(m->xmm[RexbRm(x)])
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#define XmmRexrReg(m, x) Abp16(m->xmm[RexrReg(x)])
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#define Rexx(m) m->op.rexx
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#define SibBase(m) m->op.base
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#define SibIndex(m) m->op.index
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#define SibExists(x) (ModrmRm(x) == 4)
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#define IsModrmRegister(x) (ModrmMod(x) == 3)
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#define SibHasIndex(x) (SibIndex(x) != 4 || Rexx(x))
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#define SibHasBase(x, r) (SibBase(x) != 5 || ModrmMod(r))
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#define SibIsAbsolute(x, r) (!SibHasBase(x, r) && !SibHasIndex(x))
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#define IsRipRelative(x) (ModrmRm(x) == 5 && !ModrmMod(x))
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struct AddrSeg {
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int64_t addr;
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uint8_t *seg;
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};
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extern const uint8_t kByteReg[32];
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int64_t ComputeAddress(const struct Machine *, uint32_t);
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struct AddrSeg LoadEffectiveAddress(const struct Machine *, uint32_t);
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void *ComputeReserveAddressRead(struct Machine *, uint32_t, size_t);
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void *ComputeReserveAddressRead1(struct Machine *, uint32_t);
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void *ComputeReserveAddressRead4(struct Machine *, uint32_t);
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void *ComputeReserveAddressRead8(struct Machine *, uint32_t);
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void *ComputeReserveAddressWrite(struct Machine *, uint32_t, size_t);
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void *ComputeReserveAddressWrite1(struct Machine *, uint32_t);
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void *ComputeReserveAddressWrite4(struct Machine *, uint32_t);
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void *ComputeReserveAddressWrite8(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterBytePointerRead(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterBytePointerWrite(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterMmPointerRead(struct Machine *, uint32_t, size_t);
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uint8_t *GetModrmRegisterMmPointerRead8(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterMmPointerWrite(struct Machine *, uint32_t, size_t);
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uint8_t *GetModrmRegisterMmPointerWrite8(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerRead(struct Machine *, uint32_t, size_t);
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uint8_t *GetModrmRegisterWordPointerRead2(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerRead4(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerRead8(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerReadOsz(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerReadOszRexw(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerWrite(struct Machine *, uint32_t, size_t);
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uint8_t *GetModrmRegisterWordPointerWrite4(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerWrite8(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerWriteOsz(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterWordPointerWriteOszRexw(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterXmmPointerRead(struct Machine *, uint32_t, size_t);
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uint8_t *GetModrmRegisterXmmPointerRead16(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterXmmPointerRead4(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterXmmPointerRead8(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterXmmPointerWrite(struct Machine *, uint32_t, size_t);
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uint8_t *GetModrmRegisterXmmPointerWrite16(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterXmmPointerWrite4(struct Machine *, uint32_t);
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uint8_t *GetModrmRegisterXmmPointerWrite8(struct Machine *, uint32_t);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_MODRM_H_ */
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