ShuriZma
/
mgba
mirror of https://github.com/mgba-emu/mgba.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Show s flag for ARM instructions

This commit is contained in:
Jeffrey Pfau 2014-07-12 00:13:11 -07:00
parent d245eb3f88
commit a2eec31632
4 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/arm/decoder-arm.c
View File

@ -392,6 +392,7 @@ static const ARMDecoder _armDecoderTable[0x1000] = {
};
void ARMDecodeARM(uint32_t opcode, struct ARMInstructionInfo* info) {
info->execMode = MODE_ARM;
info->opcode = opcode;
info->branches = 0;
info->traps = 0;

1
src/arm/decoder-thumb.c
View File

@ -312,6 +312,7 @@ static const ThumbDecoder _thumbDecoderTable[0x400] = {
};
void ARMDecodeThumb(uint16_t opcode, struct ARMInstructionInfo* info) {
info->execMode = MODE_THUMB;
info->opcode = opcode;
info->branches = 0;
info->traps = 0;

16
src/arm/decoder.c
View File

@ -247,6 +247,22 @@ int ARMDisassemble(struct ARMInstructionInfo* info, uint32_t pc, char* buffer, i
case ARM_MN_SWP:
flags = _armAccessTypeStrings[info->memory.width];
break;
case ARM_MN_ADD:
case ARM_MN_ADC:
case ARM_MN_AND:
case ARM_MN_BIC:
case ARM_MN_EOR:
case ARM_MN_MOV:
case ARM_MN_MVN:
case ARM_MN_ORR:
case ARM_MN_RSB:
case ARM_MN_RSC:
case ARM_MN_SBC:
case ARM_MN_SUB:
if (info->affectsCPSR && info->execMode == MODE_ARM) {
flags = "s";
}
break;
default:
break;
}

3
src/arm/decoder.h
View File

@ -1,6 +1,8 @@
#ifndef ARM_DECODER_H
#define ARM_DECODER_H
#include "arm.h"
#include <stdint.h>
// Bit 0: a register is involved with this operand
@ -165,6 +167,7 @@ enum ARMMnemonic {
};
struct ARMInstructionInfo {
enum ExecutionMode execMode;
uint32_t opcode;
enum ARMMnemonic mnemonic;
union ARMOperand op1;