diff options
| -rw-r--r-- | runtime.ts | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/runtime.ts b/runtime.ts index 4f6435d..d74e230 100644 --- a/runtime.ts +++ b/runtime.ts @@ -26,7 +26,7 @@ await cpu.loadInstructions() // mem address $0000 ram[0xFFFC] = 0x00 -ram[0xFFFD] = 0x00 +ram[0xFFFD] = 0x01 //TODO: read code from file // const code = [ @@ -43,7 +43,7 @@ const code = Deno.readFileSync('a.out') // write code to ram before execution for (let offset = 0; offset < code.length; offset++) { const byte = code[offset]; - ram[offset] = byte; + ram[256 + offset] = byte; } // pull RESB low to reset the 65c02 @@ -54,7 +54,13 @@ cpu.cycle() cpu.io.reset.HI() while (!cpu.io.interruptRequest.high) { - cpu.cycle() + cpu.cycle(); + const i = new Uint8Array(8); + await Deno.stdin.read(i); + if (i[0] == 'b'.charCodeAt(0)) { + console.log('BREAK!!') + break; + } } console.log('end of execution\n\nIO status:') |