blob: 83dab90b6216eba41f224823f8ff0ff95a5f4603 (
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
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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
# twasm
this will be a self hosted, very minimal subset of nasm-style 64 bit asm
### goals
I want to compile Bootler and Twasm with the Twasm assembler
### memory map
```
+------ 0x00100000 ------+
| hardware, bios stuff |
+------ 0x00080000 ------+
| output binary |
+------ 0x00070000 ------+
| token table |
+------ 0x00060000 ------+
| test arena |
+------ 0x00050000 ------+
| stack (rsp) |
+------------------------+
| input |
+------------------------+
| assembler |
+------ 0x00010000 ------+
| bootloader, bios, etc. |
+------------------------+
```
each word represents a token on the token table.
#### token table (TT)
each token gets loaded into the token table with the following form:
```
+----------+
| 15 0 |
+----------+
| token id |
+----------+
```
### token IDs
supported tokens are listed below
| token | id | notes |
|-------|--------|-|
| rax | 0x0000 | |
| rbx | 0x0001 | |
| rcx | 0x0002 | |
| rdx | 0x0003 | |
| rsi | 0x0004 | |
| rdi | 0x0005 | |
| rsp | 0x0006 | |
| rbp | 0x0007 | |
| r8 | 0x0008 | |
| r9 | 0x0009 | |
| r10 | 0x000A | |
| r11 | 0x000B | |
| r12 | 0x000C | |
| r13 | 0x000D | |
| r14 | 0x000E | |
| r15 | 0x000F | |
| eax | 0x0010 | |
| ebx | 0x0011 | |
| ecx | 0x0012 | |
| edx | 0x0013 | |
| esi | 0x0014 | |
| edi | 0x0015 | |
| esp | 0x0016 | |
| ebp | 0x0017 | |
| r8d | 0x0018 | |
| r9d | 0x0019 | |
| r10d | 0x001A | |
| r11d | 0x001B | |
| r12d | 0x001C | |
| r13d | 0x001D | |
| r14d | 0x001E | |
| r15d | 0x001F | |
| ax | 0x0020 | |
| bx | 0x0021 | |
| cx | 0x0022 | |
| dx | 0x0023 | |
| si | 0x0024 | |
| di | 0x0025 | |
| sp | 0x0026 | |
| bp | 0x0027 | |
| r8w | 0x0028 | |
| r9w | 0x0029 | |
| r10w | 0x002A | |
| r11w | 0x002B | |
| r12w | 0x002C | |
| r13w | 0x002D | |
| r14w | 0x002E | |
| r15w | 0x002F | |
| al | 0x0030 | |
| bl | 0x0031 | |
| cl | 0x0032 | |
| dl | 0x0033 | |
| sil | 0x0034 | |
| dil | 0x0035 | |
| spl | 0x0036 | |
| bpl | 0x0037 | |
| r8b | 0x0038 | |
| r9b | 0x0039 | |
| r10b | 0x003A | |
| r11b | 0x003B | |
| r12b | 0x003C | |
| r13b | 0x003D | |
| r14b | 0x003E | |
| r15b | 0x003F | |
| ah | 0x0040 | |
| bh | 0x0041 | |
| ch | 0x0042 | |
| dh | 0x0043 | |
| cs | 0x0044 | |
| ds | 0x0045 | |
| es | 0x0046 | |
| fs | 0x0047 | |
| gs | 0x0048 | |
| ss | 0x0049 | |
| cr0 | 0x004A | |
| cr2 | 0x004B | |
| cr3 | 0x004C | |
| cr4 | 0x004D | |
| cr8 | 0x004E | |
| hlt | 0x004F | |
| int3 | 0x0050 | |
| [ | 0x0051 | |
| ] | 0x0052 | |
| xor | 0x0053 | |
| inc | 0x0054 | |
| dec | 0x0055 | |
| mov | 0x0056 | |
| add | 0x0057 | |
| sub | 0x0058 | |
| call | 0x0059 | |
| ret | 0x005A | |
| cmp | 0x005B | |
| je | 0x005C | |
| jne | 0x005D | |
| jge | 0x005E | |
| jg | 0x005F | |
| jle | 0x0060 | |
| jl | 0x0061 | |
| + | 0x0062 | |
| - | 0x0063 | |
| * | 0x0064 | |
| / | 0x0065 | |
| | 0xFEXX | token terminator byte as token, where `XX` is the byte |
| | 0xFFFF | unrecognised token |
|
