diff options
Diffstat (limited to 'instructions/BRK.ts')
| -rw-r--r-- | instructions/BRK.ts | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/instructions/BRK.ts b/instructions/BRK.ts new file mode 100644 index 0000000..99e4072 --- /dev/null +++ b/instructions/BRK.ts @@ -0,0 +1,22 @@ +import type The65c02 from "../65c02.ts"; + +export default function (this: The65c02, mode: string) { + switch (mode) { + case 'implied': + this.io.interruptRequest.HI() + //TODO: push shit onto stack + this.io.data.set(this.programCounter.num() & 0x00FF) + this.io.address.set(0xFFFF) + this.write() + this.io.data.set(this.programCounter.num() & 0xFF00) + this.io.address.set(0xFFFE) + this.write() + this.BRK = true + this.programCounter.increment(); + this.programCounter.increment(); + break; + + default: + throw 'wha'; + } +} \ No newline at end of file |