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import { PC } from "./pc.ts";
class Runtime {
pc: PC = new PC()
instructions: Map<string, (this: PC, argv: string[]) => void> = new Map()
addInstruction(name: string, instruction: (this: PC, argv: string[]) => void) {
this.instructions.set(name, instruction)
}
run(line: string) {
line = line.replace(/\s*;.*$/gm, '')
if (!line) return;
const [instr, ...argv] = line.split(' ')
const instructionId = instr.toLowerCase()
if (!this.instructions.has(instructionId))
throw 'unknown instruction';
const instruction = this.instructions.get(instructionId);
if (!instruction)
throw 'unknown instruction';
instruction.call(this.pc, argv)
}
}
const runtime = new Runtime()
const dir = Deno.readDirSync('instructions');
for (const filename of dir) {
runtime.addInstruction(filename.name.replace(/\..*?$/g, ''),
(await import('./instructions/'+filename.name)).default)
}
const code = new TextDecoder().decode(Deno.readFileSync('code.p')).split('\n')
runtime.pc.programPointer = 0
while (runtime.pc.programPointer < code.length) {
const line = code[runtime.pc.programPointer]
try {
runtime.run(line)
// console.debug('0'.repeat(4 - String(runtime.pc.programPointer).length) +
// runtime.pc.programPointer,
// runtime.pc.registers, line)
} catch (error) {
console.error(error, 'at', line);
throw 'Unexpected error while running program'
}
runtime.pc.programPointer++
}
console.debug('end of execution, dumping ram', runtime.pc.mem)
Deno.writeFileSync('ram.bin', Uint8Array.from(runtime.pc.mem.map(a => [a & 0x00FF, (a & 0xFF00) >> 8]).flatMap(([a, b]) => [a, b])))
new Deno.Command('hexdump', {
args: ['-C', 'ram.bin']
}).spawn()
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