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Implement LDR[S]B/LDR[S]H (2)

This commit is contained in:
Jeffrey Pfau 2013-04-14 03:38:09 -07:00
parent 9cd468794e
commit cd75d3b399
1 changed files with 6 additions and 4 deletions
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10
src/isa-thumb.c
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@ -265,16 +265,18 @@ DEFINE_IMMEDIATE_WITH_REGISTER_THUMB(ADD6, cpu->gprs[rd] = cpu->gprs[ARM_SP] + i
#define DEFINE_LOAD_STORE_WITH_REGISTER_EX_THUMB(NAME, RM, BODY) \
DEFINE_INSTRUCTION_THUMB(NAME, \
int rm = RM; \
int rd = opcode & 0x0007; \
int rn = (opcode >> 3) & 0x0007; \
BODY;)
#define DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(NAME, BODY) \
COUNT_3(DEFINE_LOAD_STORE_WITH_REGISTER_EX_THUMB, NAME ## _R, BODY)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDR2, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRB2, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRH2, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRSB, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRSH, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRB2, cpu->gprs[rd] = cpu->memory->loadU8(cpu->memory, cpu->gprs[rn] + cpu->gprs[rm]))
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRH2, cpu->gprs[rd] = cpu->memory->loadU16(cpu->memory, cpu->gprs[rn] + cpu->gprs[rm]))
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRSB, cpu->gprs[rd] = cpu->memory->load8(cpu->memory, cpu->gprs[rn] + cpu->gprs[rm]))
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(LDRSH, cpu->gprs[rd] = cpu->memory->load16(cpu->memory, cpu->gprs[rn] + cpu->gprs[rm]))
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(STR2, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(STRB2, ARM_STUB)
DEFINE_LOAD_STORE_WITH_REGISTER_THUMB(STRH2, ARM_STUB)