libretro/ppsspp
1
0
Fork 0
mirror of https://github.com/libretro/ppsspp.git synced 2025-01-20 23:54:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #7178 from unknownbrackets/mips-emitter

Browse Source 
mips: Minor tweaks to the mips emitter
This commit is contained in:
Henrik Rydgård 2014-12-18 22:22:36 +01:00
commit 9c73272604
2 changed files with 27 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Common/MipsEmitter.cpp
View File

@ -268,6 +268,12 @@ void MIPSEmitter::LB(MIPSReg value, MIPSReg base, s16 offset) {
Write32Fields(26, 0x20, 21, base, 16, value, 0, (u16)offset);
}
void MIPSEmitter::LH(MIPSReg value, MIPSReg base, s16 offset) {
// 100001 sssss ttttt iiiiiiiiiiiiiiii - rs = base, rt = value
_dbg_assert_msg_(JIT, value < F_BASE && base < F_BASE, "Bad emitter arguments");
Write32Fields(26, 0x21, 21, base, 16, value, 0, (u16)offset);
}
void MIPSEmitter::LW(MIPSReg value, MIPSReg base, s16 offset) {
// 100011 sssss ttttt iiiiiiiiiiiiiiii - rs = base, rt = value
_dbg_assert_msg_(JIT, value < F_BASE && base < F_BASE, "Bad emitter arguments");
@ -280,6 +286,12 @@ void MIPSEmitter::SB(MIPSReg value, MIPSReg base, s16 offset) {
Write32Fields(26, 0x28, 21, base, 16, value, 0, (u16)offset);
}
void MIPSEmitter::SH(MIPSReg value, MIPSReg base, s16 offset) {
// 101001 sssss ttttt iiiiiiiiiiiiiiii - rs = base, rt = value
_dbg_assert_msg_(JIT, value < F_BASE && base < F_BASE, "Bad emitter arguments");
Write32Fields(26, 0x29, 21, base, 16, value, 0, (u16)offset);
}
void MIPSEmitter::SW(MIPSReg value, MIPSReg base, s16 offset) {
// 101011 sssss ttttt iiiiiiiiiiiiiiii - rs = base, rt = value
_dbg_assert_msg_(JIT, value < F_BASE && base < F_BASE, "Bad emitter arguments");

16
Common/MipsEmitter.h
View File

@ -166,10 +166,20 @@ public:
}
void LB(MIPSReg dest, MIPSReg base, s16 offset);
void LH(MIPSReg dest, MIPSReg base, s16 offset);
void LW(MIPSReg dest, MIPSReg base, s16 offset);
void SB(MIPSReg value, MIPSReg base, s16 offset);
void SH(MIPSReg dest, MIPSReg base, s16 offset);
void SW(MIPSReg value, MIPSReg base, s16 offset);
// These exist for the sole purpose of making compilation fail if you try to load/store from R+R.
void LB(MIPSReg dest, MIPSReg base, MIPSReg invalid);
void LH(MIPSReg dest, MIPSReg base, MIPSReg invalid);
void LW(MIPSReg dest, MIPSReg base, MIPSReg invalid);
void SB(MIPSReg value, MIPSReg base, MIPSReg invalid);
void SH(MIPSReg dest, MIPSReg base, MIPSReg invalid);
void SW(MIPSReg value, MIPSReg base, MIPSReg invalid);
void SLL(MIPSReg rd, MIPSReg rt, u8 sa);
void SRL(MIPSReg rd, MIPSReg rt, u8 sa);
void SRA(MIPSReg rd, MIPSReg rt, u8 sa);
@ -216,7 +226,11 @@ public:
MOVI2R(reg, (u32)val);
}
template <class T> void MOVP2R(MIPSReg reg, T *val) {
MOVI2R(reg, (intptr_t)(const void *)val);
if (sizeof(uintptr_t) > sizeof(u32)) {
MOVI2R(reg, (u64)(intptr_t)(const void *)val);
} else {
MOVI2R(reg, (u32)(intptr_t)(const void *)val);
}
}
protected: