piwalker/melonDS
1
0
Fork 0
mirror of https://github.com/melonDS-emu/melonDS.git synced 2024-11-14 13:27:41 -07:00
Code Issues Actions Packages Projects Releases Wiki Activity

simple thumb instructions (untested but probably right)

Browse Source
This commit is contained in:
Jaklyy 2024-06-05 14:32:12 -04:00
parent 7c3108e20f
commit 13ae96b4e3
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/ARMInterpreter_LoadStore.cpp
View File

@ -631,7 +631,7 @@ void T_LDR_REG(ARM* cpu)
u32 addr = cpu->R[(cpu->CurInstr >> 3) & 0x7] + cpu->R[(cpu->CurInstr >> 6) & 0x7];
u32 val;
cpu->DataRead32(addr, &val);
if (cpu->DataRead32(addr, &val))
cpu->R[cpu->CurInstr & 0x7] = ROR(val, 8*(addr&0x3));
cpu->AddCycles_CDI();
@ -657,7 +657,7 @@ void T_STRH_REG(ARM* cpu)
void T_LDRSB_REG(ARM* cpu)
{
u32 addr = cpu->R[(cpu->CurInstr >> 3) & 0x7] + cpu->R[(cpu->CurInstr >> 6) & 0x7];
cpu->DataRead8(addr, &cpu->R[cpu->CurInstr & 0x7]);
if (cpu->DataRead8(addr, &cpu->R[cpu->CurInstr & 0x7]))
cpu->R[cpu->CurInstr & 0x7] = (s32)(s8)cpu->R[cpu->CurInstr & 0x7];
cpu->AddCycles_CDI();
@ -674,7 +674,7 @@ void T_LDRH_REG(ARM* cpu)
void T_LDRSH_REG(ARM* cpu)
{
u32 addr = cpu->R[(cpu->CurInstr >> 3) & 0x7] + cpu->R[(cpu->CurInstr >> 6) & 0x7];
cpu->DataRead16(addr, &cpu->R[cpu->CurInstr & 0x7]);
if (cpu->DataRead16(addr, &cpu->R[cpu->CurInstr & 0x7]))
cpu->R[cpu->CurInstr & 0x7] = (s32)(s16)cpu->R[cpu->CurInstr & 0x7];
cpu->AddCycles_CDI();
@ -696,7 +696,7 @@ void T_LDR_IMM(ARM* cpu)
offset += cpu->R[(cpu->CurInstr >> 3) & 0x7];
u32 val;
cpu->DataRead32(offset, &val);
if (cpu->DataRead32(offset, &val))
cpu->R[cpu->CurInstr & 0x7] = ROR(val, 8*(offset&0x3));
cpu->AddCycles_CDI();
}