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ARM7: Fix setting spsr privilege bits when spsr is empty

This commit is contained in:
Jeffrey Pfau 2016-06-10 10:17:29 -07:00
parent 723b91dfe3
commit 6b1cbbd5e2
2 changed files with 3 additions and 2 deletions
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1
CHANGES
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@ -26,6 +26,7 @@ Bugfixes:
- SDL: Fix SDL 1.2 build
- ARM7: Fix flags on SBC/RSC
- Util: Fix realloc semantics in utf16to8
- ARM7: Fix setting spsr privilege bits when spsr is empty
Misc:
- GBA: Slightly optimize GBAProcessEvents
- Qt: Add preset for DualShock 4

4
src/arm/isa-arm.c
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@ -659,7 +659,7 @@ DEFINE_INSTRUCTION_ARM(MSRR,
int32_t operand = cpu->gprs[opcode & 0x0000000F];
int32_t mask = (c ? 0x000000FF : 0) | (f ? 0xFF000000 : 0);
mask &= PSR_USER_MASK | PSR_PRIV_MASK | PSR_STATE_MASK;
cpu->spsr.packed = (cpu->spsr.packed & ~mask) | (operand & mask);)
cpu->spsr.packed = (cpu->spsr.packed & ~mask) | (operand & mask) | 0x00000010;)
DEFINE_INSTRUCTION_ARM(MRS, \
int rd = (opcode >> 12) & 0xF; \
@ -701,7 +701,7 @@ DEFINE_INSTRUCTION_ARM(MSRRI,
int32_t operand = ROR(opcode & 0x000000FF, rotate);
int32_t mask = (c ? 0x000000FF : 0) | (f ? 0xFF000000 : 0);
mask &= PSR_USER_MASK | PSR_PRIV_MASK | PSR_STATE_MASK;
cpu->spsr.packed = (cpu->spsr.packed & ~mask) | (operand & mask);)
cpu->spsr.packed = (cpu->spsr.packed & ~mask) | (operand & mask) | 0x00000010;)
DEFINE_INSTRUCTION_ARM(SWI, cpu->irqh.swi32(cpu, opcode & 0xFFFFFF))