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LR35902: No writeback for BIT

This commit is contained in:
Jeffrey Pfau 2016-01-21 19:29:19 -08:00
parent d2867c26a0
commit 5cd84799be
1 changed files with 15 additions and 15 deletions
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30
src/lr35902/isa-lr35902.c
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@ -644,7 +644,7 @@ DEFINE_POPPUSH_INSTRUCTION_LR35902(DE, D, d, e);
DEFINE_POPPUSH_INSTRUCTION_LR35902(HL, H, h, l);
DEFINE_POPPUSH_INSTRUCTION_LR35902(AF, A, a, f.packed);
#define DEFINE_CB_2_INSTRUCTION_LR35902(NAME, BODY) \
#define DEFINE_CB_2_INSTRUCTION_LR35902(NAME, WB, BODY) \
DEFINE_INSTRUCTION_LR35902(NAME ## B, uint8_t reg = cpu->b; BODY; cpu->b = reg) \
DEFINE_INSTRUCTION_LR35902(NAME ## C, uint8_t reg = cpu->c; BODY; cpu->c = reg) \
DEFINE_INSTRUCTION_LR35902(NAME ## D, uint8_t reg = cpu->d; BODY; cpu->d = reg) \
@ -655,7 +655,7 @@ DEFINE_POPPUSH_INSTRUCTION_LR35902(AF, A, a, f.packed);
uint8_t reg = cpu->bus; \
BODY; \
cpu->bus = reg; \
cpu->executionState = LR35902_CORE_MEMORY_STORE; \
cpu->executionState = WB; \
cpu->instruction = _LR35902InstructionNOP;) \
DEFINE_INSTRUCTION_LR35902(NAME ## HL, \
cpu->index = LR35902ReadHL(cpu); \
@ -663,22 +663,22 @@ DEFINE_POPPUSH_INSTRUCTION_LR35902(AF, A, a, f.packed);
cpu->instruction = _LR35902Instruction ## NAME ## HLDelay;) \
DEFINE_INSTRUCTION_LR35902(NAME ## A, uint8_t reg = cpu->a; BODY; cpu->a = reg)
#define DEFINE_CB_INSTRUCTION_LR35902(NAME, BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 0, uint8_t bit = 1; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 1, uint8_t bit = 2; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 2, uint8_t bit = 4; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 3, uint8_t bit = 8; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 4, uint8_t bit = 16; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 5, uint8_t bit = 32; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 6, uint8_t bit = 64; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 7, uint8_t bit = 128; BODY)
#define DEFINE_CB_INSTRUCTION_LR35902(NAME, WB, BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 0, WB, uint8_t bit = 1; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 1, WB, uint8_t bit = 2; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 2, WB, uint8_t bit = 4; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 3, WB, uint8_t bit = 8; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 4, WB, uint8_t bit = 16; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 5, WB, uint8_t bit = 32; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 6, WB, uint8_t bit = 64; BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME ## 7, WB, uint8_t bit = 128; BODY)
DEFINE_CB_INSTRUCTION_LR35902(BIT, cpu->f.n = 0; cpu->f.h = 1; cpu->f.z = !(reg & bit))
DEFINE_CB_INSTRUCTION_LR35902(RES, reg &= ~bit)
DEFINE_CB_INSTRUCTION_LR35902(SET, reg |= bit)
DEFINE_CB_INSTRUCTION_LR35902(BIT, LR35902_CORE_STALL, cpu->f.n = 0; cpu->f.h = 1; cpu->f.z = !(reg & bit))
DEFINE_CB_INSTRUCTION_LR35902(RES, LR35902_CORE_MEMORY_STORE, reg &= ~bit)
DEFINE_CB_INSTRUCTION_LR35902(SET, LR35902_CORE_MEMORY_STORE, reg |= bit)
#define DEFINE_CB_ALU_INSTRUCTION_LR35902(NAME, BODY) \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME, \
DEFINE_CB_2_INSTRUCTION_LR35902(NAME, LR35902_CORE_MEMORY_STORE, \
BODY; \
cpu->f.n = 0; \
cpu->f.h = 0; \