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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
'use strict';
const { AddrMode } = require('./enum.js');
function DoDat(core, pc, ins) {
// do nothing
return [];
}
function DoMov(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
let mem = core.getValue(pc, ins.b);
mem.b.value = ins.a.value;
} else {
const src = core.getValue(pc, ins.a);
const dstLoc = core.getLocation(pc, ins.b);
// hacky deep copy
core.data[dstLoc] = JSON.parse(JSON.stringify(src));
}
return [pc + 1];
}
function DoAdd(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
let dst = core.getValue(pc, ins.b);
dst.b += ins.a.value;
} else {
let src = core.getValue(pc, ins.a);
let dst = core.getValue(pc, ins.b);
dst.a.value += src.a.value;
dst.b.value += src.b.value;
}
return [pc + 1];
}
function DoSub(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
let dst = core.getValue(pc, ins.b);
dst.b -= ins.a.value;
} else {
let src = core.getValue(pc, ins.a);
let dst = core.getValue(pc, ins.b);
dst.a.value -= src.a.value;
dst.b.value -= src.b.value;
}
return [pc + 1];
}
function DoJmp(core, pc, ins) {
return [core.getLocation(pc, ins.a)];
}
function DoJmz(core, pc, ins) {
let test
if (ins.b.mode === AddrMode.Immediate) {
test = ins;
} else {
test = core.getValue(pc, ins.b);
}
if (test.b.value === 0) {
return [core.getLocation(pc, ins.a)];
} else {
return [pc + 1];
}
}
function DoJmn(core, pc, ins) {
let test
if (ins.b.mode === AddrMode.Immediate) {
test = ins;
} else {
test = core.getValue(pc, ins.b);
}
if (test.b.value !== 0) {
return [core.getLocation(pc, ins.a)];
} else {
return [pc + 1];
}
}
function DoCmp(core, pc, ins) {
if (ins.a.mode === AddrMode.Immediate) {
const test = core.getValue(pc, ins.b);
if (ins.a.value === test.b.value) {
return [pc + 2];
} else {
return [pc + 1];
}
} else {
const a = core.getValue(pc, ins.a);
const b = core.getValue(pc, ins.b);
if (
a.opcode === b.opcode &&
a.a.value === b.a.value &&
a.b.value === b.b.value)
) {
return [pc + 2];
} else {
return [pc + 1];
}
}
}
|
