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allow crapoed THUMB hireg ADD/CMP/MOV

This commit is contained in:
StapleButter 2017-03-31 02:20:29 +02:00
parent bfe22e0b9b
commit 3a61ed0a91
2 changed files with 6 additions and 3 deletions
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3
src/ARMInterpreter_ALU.cpp
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@ -1384,6 +1384,9 @@ void T_MVN_REG(ARM* cpu)
}
// TODO: check those when MSBs and MSBd are cleared
// GBAtek says it's not allowed, but it works atleast on the ARM9
void T_ADD_HIREG(ARM* cpu)
{
u32 rd = (cpu->CurInstr & 0x7) | ((cpu->CurInstr >> 4) & 0x8);

6
src/ARM_InstrTable.h
View File

@ -1692,9 +1692,9 @@ INSTRFUNC_PROTO(THUMBInstrTable[1024]) =
T_ORR_REG, T_MUL_REG, T_BIC_REG, T_MVN_REG,
// 0100 0100 00
T_UNK, T_ADD_HIREG, T_ADD_HIREG, T_ADD_HIREG,
T_UNK, T_CMP_HIREG, T_CMP_HIREG, T_CMP_HIREG,
T_UNK, T_MOV_HIREG, T_MOV_HIREG, T_MOV_HIREG,
T_ADD_HIREG, T_ADD_HIREG, T_ADD_HIREG, T_ADD_HIREG,
T_CMP_HIREG, T_CMP_HIREG, T_CMP_HIREG, T_CMP_HIREG,
T_MOV_HIREG, T_MOV_HIREG, T_MOV_HIREG, T_MOV_HIREG,
T_BX, T_BX, T_BLX_REG, T_BLX_REG,
// 0100 1000 00