diff options
Diffstat (limited to 'cpu_opcodes.c')
| -rw-r--r-- | cpu_opcodes.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpu_opcodes.c b/cpu_opcodes.c index 2d308da..5fd5634 100644 --- a/cpu_opcodes.c +++ b/cpu_opcodes.c @@ -544,7 +544,9 @@ static void opcode_clc(struct nes_state * restrict state) { static void opcode_cld(struct nes_state * restrict state) { struct cpu_state * restrict cpu = &state->cpu; memory_read_dummy(state, cpu->pc); +#ifdef ENABLE_DECIMAL_MODE cpu->d = 0; +#endif } static void opcode_cli(struct nes_state * restrict state) { @@ -568,7 +570,9 @@ static void opcode_sec(struct nes_state * restrict state) { static void opcode_sed(struct nes_state * restrict state) { struct cpu_state * restrict cpu = &state->cpu; memory_read_dummy(state, cpu->pc); +#ifdef ENABLE_DECIMAL_MODE cpu->d = 1; +#endif } static void opcode_sei(struct nes_state * restrict state) { |