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

idk why it took me two tries to get these instructions to work properly

Browse Source
This commit is contained in:
Jaklyy 2024-06-07 23:50:31 -04:00
parent 2b0ed459e1
commit 73507621f5
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/ARMInterpreter_LoadStore.cpp
View File

@ -83,7 +83,9 @@ namespace melonDS::ARMInterpreter
#define A_STRB \
offset += cpu->R[(cpu->CurInstr>>16) & 0xF]; \
bool dataabort = !cpu->DataWrite8(offset, cpu->R[(cpu->CurInstr>>12) & 0xF]); \
u32 storeval = cpu->R[(cpu->CurInstr>>12) & 0xF]; \
if (((cpu->CurInstr>>12) & 0xF) == 15) storeval+=4; \
bool dataabort = !cpu->DataWrite8(offset, storeval); \
cpu->AddCycles_CD(); \
if (dataabort) return; \
if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset;
@ -91,7 +93,9 @@ namespace melonDS::ARMInterpreter
// TODO: user mode (bit21)
#define A_STRB_POST \
u32 addr = cpu->R[(cpu->CurInstr>>16) & 0xF]; \
bool dataabort = !cpu->DataWrite8(addr, cpu->R[(cpu->CurInstr>>12) & 0xF]); \
u32 storeval = cpu->R[(cpu->CurInstr>>12) & 0xF]; \
if (((cpu->CurInstr>>12) & 0xF) == 15) storeval+=4; \
bool dataabort = !cpu->DataWrite8(addr, storeval); \
cpu->AddCycles_CD(); \
if (dataabort) return; \
cpu->R[(cpu->CurInstr>>16) & 0xF] += offset;
@ -233,14 +237,18 @@ A_IMPLEMENT_WB_LDRSTR(LDRB)
#define A_STRH \
offset += cpu->R[(cpu->CurInstr>>16) & 0xF]; \
bool dataabort = !cpu->DataWrite16(offset, cpu->R[(cpu->CurInstr>>12) & 0xF]); \
u32 storeval = cpu->R[(cpu->CurInstr>>12) & 0xF]; \
if (((cpu->CurInstr>>12) & 0xF) == 15) storeval+=4; \
bool dataabort = !cpu->DataWrite16(offset, storeval); \
cpu->AddCycles_CD(); \
if (dataabort) return; \
if (cpu->CurInstr & (1<<21)) cpu->R[(cpu->CurInstr>>16) & 0xF] = offset;
#define A_STRH_POST \
u32 addr = cpu->R[(cpu->CurInstr>>16) & 0xF]; \
bool dataabort = !cpu->DataWrite16(addr, cpu->R[(cpu->CurInstr>>12) & 0xF]); \
u32 storeval = cpu->R[(cpu->CurInstr>>12) & 0xF]; \
if (((cpu->CurInstr>>12) & 0xF) == 15) storeval+=4; \
bool dataabort = !cpu->DataWrite16(addr, storeval); \
cpu->AddCycles_CD(); \
if (dataabort) return; \
cpu->R[(cpu->CurInstr>>16) & 0xF] += offset;