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Fix entering SWI mode

This commit is contained in:
Jeffrey Pfau 2013-04-27 02:50:35 -07:00
parent bd9714b540
commit 21b9222357
1 changed files with 1 additions and 1 deletions
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src/arm/arm.c
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@ -145,7 +145,7 @@ void ARMRaiseSWI(struct ARMCore* cpu) {
} }
ARMSetPrivilegeMode(cpu, MODE_SUPERVISOR); ARMSetPrivilegeMode(cpu, MODE_SUPERVISOR);
cpu->cpsr.priv = MODE_IRQ; cpu->cpsr.priv = MODE_IRQ;
cpu->gprs[ARM_LR] = cpu->gprs[ARM_PC] - instructionWidth + WORD_SIZE_ARM; cpu->gprs[ARM_LR] = cpu->gprs[ARM_PC] - instructionWidth;
cpu->gprs[ARM_PC] = BASE_SWI + WORD_SIZE_ARM; cpu->gprs[ARM_PC] = BASE_SWI + WORD_SIZE_ARM;
cpu->memory->setActiveRegion(cpu->memory, cpu->gprs[ARM_PC]); cpu->memory->setActiveRegion(cpu->memory, cpu->gprs[ARM_PC]);
_ARMSetMode(cpu, MODE_ARM); _ARMSetMode(cpu, MODE_ARM);