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LR35902: Implement RRCA and RRA

This commit is contained in:
Jeffrey Pfau 2016-01-19 23:13:06 -08:00
parent 81cd68cbac
commit 4e64b4fde4
2 changed files with 18 additions and 2 deletions
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4
src/lr35902/emitter-lr35902.h
View File

@ -25,7 +25,7 @@
DECLARE_INSTRUCTION_LR35902(EMITTER, INCC), \
DECLARE_INSTRUCTION_LR35902(EMITTER, DECC), \
DECLARE_INSTRUCTION_LR35902(EMITTER, LDC_), \
DECLARE_INSTRUCTION_LR35902(EMITTER, STUB), \
DECLARE_INSTRUCTION_LR35902(EMITTER, RRCA_), \
DECLARE_INSTRUCTION_LR35902(EMITTER, STUB), \
DECLARE_INSTRUCTION_LR35902(EMITTER, LDDE), \
DECLARE_INSTRUCTION_LR35902(EMITTER, LDDE_A), \
@ -41,7 +41,7 @@
DECLARE_INSTRUCTION_LR35902(EMITTER, INCE), \
DECLARE_INSTRUCTION_LR35902(EMITTER, DECE), \
DECLARE_INSTRUCTION_LR35902(EMITTER, LDE_), \
DECLARE_INSTRUCTION_LR35902(EMITTER, STUB), \
DECLARE_INSTRUCTION_LR35902(EMITTER, RRA_), \
DECLARE_INSTRUCTION_LR35902(EMITTER, JRNZ), \
DECLARE_INSTRUCTION_LR35902(EMITTER, LDHL), \
DECLARE_INSTRUCTION_LR35902(EMITTER, LDIHLA), \

16
src/lr35902/isa-lr35902.c
View File

@ -628,6 +628,22 @@ DEFINE_INSTRUCTION_LR35902(RLCA_,
cpu->f.n = 0;
cpu->f.c = cpu->a & 1;)
DEFINE_INSTRUCTION_LR35902(RRA_,
int low = cpu->a & 1;
cpu->a = (cpu->a >> 1) | (cpu->f.c << 7);
cpu->f.z = 0;
cpu->f.h = 0;
cpu->f.n = 0;
cpu->f.c = cpu->f.c = low;)
DEFINE_INSTRUCTION_LR35902(RRCA_,
int low = cpu->a & 1;
cpu->a = (cpu->a >> 1) | (low << 7);
cpu->f.z = 0;
cpu->f.h = 0;
cpu->f.n = 0;
cpu->f.c = low;)
DEFINE_INSTRUCTION_LR35902(DI, cpu->irqh.setInterrupts(cpu, false));
DEFINE_INSTRUCTION_LR35902(EI, cpu->irqh.setInterrupts(cpu, true));
DEFINE_INSTRUCTION_LR35902(HALT, cpu->cycles = cpu->nextEvent);