blob: 5131bf2220bc0d3ba4532060ecb324066ae15202 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// deno-lint-ignore-file no-case-declarations no-process-globals
import { PC } from "../pc.ts";
export default {
function(this: PC) {
switch (this.registers[0]) {
case 0:
switch (this.registers[1]) {
case 0:
const data = new Uint8Array(1024)
const len = Deno.stdin.readSync(data) ?? 0
let i = 0;
while (i < len) {
this.mem[this.registers[2] + i] = data[i]
i++
}
this.registers[0] = len
this.mem[this.registers[2] + i] = 0
break;
default:
throw 'unknown fd'
}
break;
case 1:
const writeBuff = [];
let i = this.registers[2];
while (this.mem[i] != 0 && i <= this.mem.length) {
writeBuff.push(this.mem[i]);
i++
}
switch (this.registers[1]) {
case 1:
process.stdout.write(writeBuff.map(a => String.fromCharCode(a)).join(''))
break;
case 2:
process.stderr.write(writeBuff.map(a => String.fromCharCode(a)).join(''))
break;
default:
throw 'unknown fd'
}
break;
case 2:
Deno.stdin.setRaw(this.registers[1] ? true : false);
break;
default:
throw 'unknown syscall id ' + this.registers[0]
}
},
args: 0
}
|
