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cosmopolitan/tool/build/lib/modrm.h

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Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_MODRM_H_
#define COSMOPOLITAN_TOOL_BUILD_LIB_MODRM_H_
#include "tool/build/lib/abp.h"
#include "tool/build/lib/machine.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
Add pseudoteletypewriter to emulator https://justine.storage.googleapis.com/emulator628.mp4
2020-08-27 06:08:08 +00:00
#define SibBase(x) ((x & 000007000000) >> 022)
#define SibIndex(x) ((x & 000700000000) >> 030)
#define ModrmRm(x) ((x & 000000000700) >> 006)
#define ModrmReg(x) ((x & 000000000007) >> 000)
#define ModrmSrm(x) ((x & 000000070000) >> 014)
#define ModrmMod(x) ((x & 000060000000) >> 026)
#define RegLog2(x) ((x & 006000000000) >> 034)
#define Rexx(x) ((x & 001000000000) >> 033)
#define Asz(x) ((x & 000000400000) >> 021)
#define Rexw(x) ((x & 000000004000) >> 013)
#define Rexr(x) ((x & 000000000010) >> 003)
#define Rexb(x) ((x & 000010000000) >> 025)
#define Rex(x) ((x & 000000000020) >> 004)
#define Osz(x) ((x & 000000000040) >> 005)
#define Rep(x) ((x & 030000000000) >> 036)
Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
Add pseudoteletypewriter to emulator https://justine.storage.googleapis.com/emulator628.mp4
2020-08-27 06:08:08 +00:00
#define IsModrmRegister(x) (ModrmMod(x) == 3)
#define SibExists(x) (ModrmRm(x) == 4)
#define SibHasIndex(x) (SibIndex(x) != 4 || Rexx(x))
#define SibHasBase(x) (SibBase(x) != 5 || ModrmMod(x))
#define SibIsAbsolute(x) (!SibHasBase(x) && !SibHasIndex(x))
#define IsRipRelative(x) (ModrmRm(x) == 5 && !ModrmMod(x))
Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
Add pseudoteletypewriter to emulator https://justine.storage.googleapis.com/emulator628.mp4
2020-08-27 06:08:08 +00:00
#define ByteRexrReg(m, x) m->beg[(x & 00000000037) >> 0]
#define ByteRexbRm(m, x) m->beg[(x & 00000003700) >> 6]
#define ByteRexbSrm(m, x) m->beg[(x & 00000370000) >> 12]
#define RegRexbSrm(m, x) Abp8(m->reg[(x & 00000170000) >> 12])
#define RegRexrReg(m, x) Abp8(m->reg[(x & 00000000017) >> 0])
#define RegRexbRm(m, x) Abp8(m->reg[(x & 00000001700) >> 6])
#define RegRexbBase(m, x) Abp8(m->reg[(x & 00017000000) >> 18])
#define RegRexxIndex(m, x) Abp8(m->reg[(x & 01700000000) >> 24])
#define XmmRexrReg(m, x) Abp16(m->veg[(x & 00000000017) >> 0])
#define XmmRexbRm(m, x) Abp16(m->veg[(x & 00000001700) >> 6])
#define MmReg(m, x) Abp16(m->veg[(x & 00000000007) >> 0])
#define MmRm(m, x) Abp16(m->veg[(x & 00000000700) >> 6])
Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
Add pseudoteletypewriter to emulator https://justine.storage.googleapis.com/emulator628.mp4
2020-08-27 06:08:08 +00:00
int64_t ComputeAddress(const struct Machine *, uint32_t) nosideeffect;
void *ComputeReserveAddressRead(struct Machine *, uint32_t, size_t);
void *ComputeReserveAddressRead1(struct Machine *, uint32_t);
void *ComputeReserveAddressRead8(struct Machine *, uint32_t);
void *ComputeReserveAddressWrite(struct Machine *, uint32_t, size_t);
void *ComputeReserveAddressWrite1(struct Machine *, uint32_t);
void *ComputeReserveAddressWrite4(struct Machine *, uint32_t);
void *ComputeReserveAddressWrite8(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterBytePointerRead(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterBytePointerWrite(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterMmPointerRead(struct Machine *, uint32_t, size_t);
uint8_t *GetModrmRegisterMmPointerRead8(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterMmPointerWrite(struct Machine *, uint32_t, size_t);
uint8_t *GetModrmRegisterMmPointerWrite8(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerRead(struct Machine *, uint32_t, size_t);
uint8_t *GetModrmRegisterWordPointerRead2(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerRead4(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerRead8(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerReadOsz(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerReadOszRexw(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerWrite(struct Machine *, uint32_t, size_t);
uint8_t *GetModrmRegisterWordPointerWrite4(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerWrite8(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerWriteOsz(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterWordPointerWriteOszRexw(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterXmmPointerRead(struct Machine *, uint32_t, size_t);
uint8_t *GetModrmRegisterXmmPointerRead16(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterXmmPointerRead4(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterXmmPointerRead8(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterXmmPointerWrite(struct Machine *, uint32_t, size_t);
uint8_t *GetModrmRegisterXmmPointerWrite16(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterXmmPointerWrite4(struct Machine *, uint32_t);
uint8_t *GetModrmRegisterXmmPointerWrite8(struct Machine *, uint32_t);
Add x86_64-linux-gnu emulator I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
2020-08-25 11:23:25 +00:00
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_MODRM_H_ */