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encode offsets

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janis 2026-06-05 05:19:57 +02:00
parent f6ffba2460
commit 52d2466eb5
Signed by: janis
SSH key fingerprint: SHA256:bB1qbbqmDXZNT0KKD5c2Dfjg53JGhj7B3CFcLIzSqq8
1 changed files with 63 additions and 64 deletions
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127
stages/hex1/hex1.in
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@ -14,22 +14,22 @@ c3 ; ret
b8 c5 9d 1c 81 ; mov rax, 0x811c9dc5 (FNV offset basis)
; @fasthash_loop: +30
48 85 f6 ; test rsi, rsi
0f 84 cc cc cc cc ; jz 'fasthash_exit (+39)
0f 84 f1 ff ff ff ; jz 'fasthash_exit (+39)
0f b6 0f ; movzx ecx, byte [rdi]
31 c8 ; xor eax, ecx
69 c0 93 01 00 01 ; imul eax, eax, 0x1000193 (FNV prime)
48 ff c7 ; inc rdi
48 ff ce ; dec rsi
e9 cc cc cc cc ; jmp 'fasthash_loop (+61)
e9 e1 ff ff ff ; jmp 'fasthash_loop (+61)
; @push_lbl: +61
41 8b 87 00 60 00 00 ; mov eax, [r15+0x6000]
3d 54 01 00 00 ; cmp eax, 0x154
0f 8d cc cc cc cc ; jge 'panic (+79)
0f 8d b1 ff ff ff ; jge 'panic (+79)
8d 14 40 ; lea edx, [rax + rax*2]
48 c1 e2 02 ; shl rdx, 2
52 ; push rdx
e8 cc cc cc cc ; call 'fasthash (+92)
e8 bd ff ff ff ; call 'fasthash (+92)
5a ; pop rdx
49 8d bf 10 50 00 00 ; lea rdi, [r15+0x5010]
48 89 04 17 ; mov qword [rdi+rdx], rax
@ -39,22 +39,22 @@ e8 cc cc cc cc ; call 'fasthash (+92)
c3 ; ret
; @find_lbl_not_found: (+123)
e8 cc cc cc cc ; call 'panic (+128)
; @find_lbl_found:
e8 80 ff ff ff ; call 'panic (+128)
; @find_lbl_found: (+128)
8b 42 08 ; mov eax, dword [rdx+8]
c3 ; ret
; @find_lbl: +132
e8 cc cc cc cc ; call 'fasthash (+137)
e8 90 ff ff ff ; call 'fasthash (+137)
49 8d 97 10 50 00 00 ; lea rdx, [r15+0x5010]
41 8b 9f 00 60 00 00 ; mov edx, dword [r15+0x6000]
; @find_lbl_loop: (+151)
48 85 db ; test rbx, rbx
0f 84 cc cc cc cc ; jz 'find_lbl_not_found (+160)
0f 84 db ff ff ff ; jz 'find_lbl_not_found (+160)
48 ff cb ; dec rbx
48 39 02 ; cmp [rdx], rax
0f 84 cc cc cc cc ; jz 'find_lbl_found (+172)
0f 84 d4 ff ff ff ; jz 'find_lbl_found (+172)
48 83 c2 0c ; add rdx, 0xc
e9 cc cc cc cc ; jmp 'find_lbl_loop (+181)
e9 e2 ff ff ff ; jmp 'find_lbl_loop (+181)
; @wrt_stdout: (+181)
b8 01 00 00 00 ; mov rax, 1 (sys_write)
@ -68,9 +68,9 @@ c3 ; ret
; @_start_lbl: (+219)
5f 73 74 61 72 74 00
; @die_jmp_start: (+226)
48 8d 3d cc cc cc cc ; lea rdi, [rip+@_start_lbl] (+233)
48 8d 3d f2 ff ff ff ; lea rdi, [rip+@_start_lbl] (+233)
be 06 00 00 00 ; mov esi, 6
e8 cc cc cc cc ; call 'find_lbl (+243)
e8 91 ff ff ff ; call 'find_lbl (+243)
41 83 87 0c 50 00 00 05 ; add dword [r15+0x500c], 5
41 2b 87 0c 50 00 00 ; sub eax, dword [r15+0x500c]
41 8b bf 04 50 00 00 ; mov edi, dword [r15+0x5004]
@ -78,8 +78,8 @@ e8 cc cc cc cc ; call 'find_lbl (+243)
c6 07 e9 ; mov byte [rdi], 0xe9
89 47 01 ; mov dword [rdi+1], eax
41 83 87 04 50 00 00 05 ; add dword [r15+0x5004], 5
e8 cc cc cc cc ; call 'wrt_stdout (+292)
e8 cc cc cc cc ; call 'die (+297)
e8 91 ff ff ff ; call 'wrt_stdout (+292)
e8 e3 fe ff ff ; call 'die (+297)
; @rd_stdin: (+297)
b8 00 00 00 00 ; mov rax, 0 (sys_read)
@ -88,7 +88,7 @@ bf 00 00 00 00 ; mov rdi, 0 (stdin)
ba 00 10 00 00 ; mov rdx, 0x1000
0f 05 ; syscall
85 c0 ; test rax, rax
0f 8e cc cc cc cc ; jle 'die_jmp_start (+325)
0f 8e 9d ff ff ff ; jle 'die_jmp_start (+325)
41 89 87 08 50 00 00 ; mov dword [r15+0x5008], eax
41 c7 87 00 50 00 00 00 00 00 00 ; mov dword [r15+0x5000], 0
c3 ; ret
@ -102,55 +102,55 @@ c3 ; ret
; @rd_buf: (+366)
41 8b 87 00 50 00 00 ; mov eax, dword [r15+0x5000]
41 3b 87 08 50 00 00 ; cmp eax, dword [r15+0x5008]
0f 8c cc cc cc cc ; jl 'rd_buf_end (+386)
e8 cc cc cc cc ; call 'wrt_stdout (+391)
e8 cc cc cc cc ; call 'rd_stdin (+396)
e9 cc cc cc cc ; jmp 'rd_buf_end (+401)
0f 8c d6 ff ff ff ; jl 'rd_buf_end (+386)
e8 2e ff ff ff ; call 'wrt_stdout (+391)
e8 9d ff ff ff ; call 'rd_stdin (+396)
e9 c7 ff ff ff ; jmp 'rd_buf_end (+401)
; @skip_line_read: (+401)
e8 cc cc cc cc ; call 'rd_buf (+406)
e8 d8 ff ff ff ; call 'rd_buf (+406)
; @skip_line: (+406)
3c 0a ; cmp al, 0xa (newline)
0f 85 cc cc cc cc ; jnz 'skip_line_read (+414)
e8 cc cc cc cc ; call 'rd_buf (+419)
0f 85 f3 ff ff ff ; jnz 'skip_line_read (+414)
e8 cd ff ff ff ; call 'rd_buf (+419)
c3 ; ret
; @skip_whitespace_read: (+420)
e8 cc cc cc cc ; call 'rd_buf (+425)
e8 c5 ff ff ff ; call 'rd_buf (+425)
; @skip_whitespace: (+425)
3c 20 ; cmp al, 0x20 (space)
0f 84 cc cc cc cc ; jz 'skip_whitespace_read (+433)
0f 84 f3 ff ff ff ; jz 'skip_whitespace_read (+433)
3c 0a ; cmp al, 0xa (newline)
0f 84 cc cc cc cc ; jz 'skip_whitespace_read (+441)
0f 84 eb ff ff ff ; jz 'skip_whitespace_read (+441)
3c 09 ; cmp al, 0x9 (tab)
0f 84 cc cc cc cc ; jz 'skip_whitespace_read (+449)
0f 84 e3 ff ff ff ; jz 'skip_whitespace_read (+449)
c3 ; ret
; @skip_comment_ret: (+450)
c3 ; ret
; @skip_comment: (+451)
3c 3b ; cmp al, 0x3b (semicolon)
0f 85 cc cc cc cc ; jnz 'skip_comment_ret (+459)
e8 cc cc cc cc ; call 'skip_line +(464)
0f 85 f7 ff ff ff ; jnz 'skip_comment_ret (+459)
e8 c6 ff ff ff ; call 'skip_line (+464)
c3 ; ret
; @get_next_token_skip: (+465)
e8 cc cc cc cc ; call 'skip_whitespace (+470)
e8 cc cc cc cc ; call 'skip_comment (+475)
e8 d3 ff ff ff ; call 'skip_whitespace (+470)
e8 e8 ff ff ff ; call 'skip_comment (+475)
; @get_next_token: (+475)
3c 3b ; cmp al, 0x3b (semicolon)
0f 84 cc cc cc cc ; jz 'get_next_token_skip (+483)
0f 84 ee ff ff ff ; jz 'get_next_token_skip (+483)
3c 0a ; cmp al, 0xa (newline)
0f 84 cc cc cc cc ; jz 'get_next_token_skip (+491)
0f 84 e6 ff ff ff ; jz 'get_next_token_skip (+491)
3c 20 ; cmp al, 0x20 (space)
0f 84 cc cc cc cc ; jz 'get_next_token_skip (+499)
0f 84 de ff ff ff ; jz 'get_next_token_skip (+499)
3c 09 ; cmp al, 0x9 (tab)
0f 84 cc cc cc cc ; jz 'get_next_token_skip (+507)
0f 84 d6 ff ff ff ; jz 'get_next_token_skip (+507)
c3 ; ret
; @invalid_hex: (+508)
e8 cc cc cc cc ; call 'panic (+513)
e8 ff fd ff ff ; call 'panic (+513)
; @is_digit: (+513)
2c 30 ; sub al, 0x30 (digit '0')
c3 ; ret
@ -162,25 +162,25 @@ c3 ; ret
c3 ; ret
; @char_to_u4: (+522)
3c 30 ; cmp al, 0x30 (digit '0')
0f 82 cc cc cc cc ; jb 'invalid_hex (+530)
0f 82 ea ff ff ff ; jb 'invalid_hex (+530)
3c 39 ; cmp al, 0x39 (digit '9')
0f 86 cc cc cc cc ; jbe 'is_digit (+538)
0f 86 e7 ff ff ff ; jbe 'is_digit (+538)
3c 41 ; cmp al, 0x41 (letter 'A')
0f 82 cc cc cc cc ; jb 'invalid_hex (+546)
0f 82 da ff ff ff ; jb 'invalid_hex (+546)
3c 46 ; cmp al, 0x46 (letter 'F')
0f 86 cc cc cc cc ; jbe 'is_up_alpha (+554)
0f 86 dd ff ff ff ; jbe 'is_up_alpha (+554)
3c 61 ; cmp al, 0x61 (letter 'a')
0f 82 cc cc cc cc ; jb 'invalid_hex (+562)
0f 82 ca ff ff ff ; jb 'invalid_hex (+562)
3c 66 ; cmp al, 0x66 (letter 'f')
0f 86 cc cc cc cc ; jbe 'is_low_alpha (+570)
e9 cc cc cc cc ; jmp 'invalid_hex (+575)
0f 86 ca ff ff ff ; jbe 'is_low_alpha (+570)
e9 bd ff ff ff ; jmp 'invalid_hex (+575)
; @octet: (+575)
48 83 ec 08 ; sub rsp, 8
e8 cc cc cc cc ; call 'char_to_u4 (+584)
e8 ca ff ff ff ; call 'char_to_u4 (+584)
88 04 24 ; mov byte [rsp], al
e8 cc cc cc cc ; call 'rd_buf (+592)
e8 cc cc cc cc ; call 'char_to_u4 (+597)
e8 1e ff ff ff ; call 'rd_buf (+592)
e8 b5 ff ff ff ; call 'char_to_u4 (+597)
8a 1c 24 ; mov bl, byte [rsp]
c0 e3 04 ; shl bl, 4
08 d8 ; or al, bl
@ -194,7 +194,7 @@ c3 ; ret
; @label_ref_ret: (+641)
49 8d bf 04 60 00 00 ; lea rdi, [r15+0x6004]
e8 cc cc cc cc ; call 'find_lbl (+653)
e8 f7 fd ff ff ; call 'find_lbl (+653)
41 83 87 0c 50 00 00 04 ; add dword [r15+0x500c], 4
41 2b 87 0c 50 00 00 ; sub eax, dword [r15+0x500c]
41 8b bf 04 50 00 00 ; mov edi, dword [r15+0x5004]
@ -202,48 +202,48 @@ e8 cc cc cc cc ; call 'find_lbl (+653)
41 83 87 04 50 00 00 04 ; add dword [r15+0x5004], 4
c3 ; ret
; @not_label_ref: (+692)
e8 cc cc cc cc ; call 'octet (+697)
e8 86 ff ff ff ; call 'octet (+697)
c3 ; ret
; @label_ref: (+698)
3c 27 ; cmp al, 0x27 (single quote)
0f 85 cc cc cc cc ; jnz 'not_label_ref (+706)
0f 85 f2 ff ff ff ; jnz 'not_label_ref (+706)
48 31 f6 ; xor rsi, rsi
; @label_ref_loop: (+709)
56 ; push rsi
e8 cc cc cc cc ; call 'rd_buf (+715)
e8 a3 fe ff ff ; call 'rd_buf (+715)
5e ; pop rsi
49 8d bf 04 60 00 00 ; lea rdi, [r15+0x6004]
3c 20 ; cmp al, 0x20 (space)
0f 84 cc cc cc cc ; jz 'label_ref_loop (+731)
0f 84 a6 ff ff ff ; jz 'label_ref_ret (+731)
3c 09 ; cmp al, 0x9 (tab)
0f 84 cc cc cc cc ; jz 'label_ref_loop (+739)
0f 84 9e ff ff ff ; jz 'label_ref_ret (+739)
3c 0a ; cmp al, 0xa (newline)
0f 84 cc cc cc cc ; jz 'label_ref_loop (+747)
0f 84 96 ff ff ff ; jz 'label_ref_ret (+747)
88 04 37 ; mov byte [rdi+rsi*1], al
48 ff c6 ; inc rsi
e9 cc cc cc cc ; jmp 'label_ref_loop (+758)
e9 cf ff ff ff ; jmp 'label_ref_loop (+758)
; @label_ret: (+758)
49 8d bf 04 60 00 00 ; lea rdi, [r15+0x6004]
e8 cc cc cc cc ; call 'push_lbl (+770)
e8 3d fd ff ff ; call 'push_lbl (+770)
c3 ; ret
; @not_label: (+771)
e8 cc cc cc cc ; call 'label_ref (+776)
e8 b2 ff ff ff ; call 'label_ref (+776)
c3 ; ret
; @label: (+777)
3c 40 ; cmp al, 0x40 (at sign)
0f 85 cc cc cc cc ; jnz 'not_label (+785)
0f 85 f2 ff ff ff ; jnz 'not_label (+785)
48 31 f6 ; xor rsi, rsi
; @label_loop: (+788)
56 ; push rsi
e8 cc cc cc cc ; call 'rd_buf (+794)
e8 54 fe ff ff ; call 'rd_buf (+794)
5e ; pop rsi
49 8d bf 04 60 00 00 ; lea rdi, [r15+0x6004]
3c 3a ; cmp al, 0x3a (colon)
0f 84 cc cc cc cc ; jz 'label_ret (+810)
0f 84 cc ff ff ff ; jz 'label_ret (+810)
88 04 37 ; mov byte [rdi+rsi*1], al
48 ff c6 ; inc rsi
e9 cc cc cc cc ; jmp 'label_loop (+821)
e9 df ff ff ff ; jmp 'label_loop (+821)
; @_start: (+821)
55 ; push rbp
@ -256,8 +256,7 @@ e9 cc cc cc cc ; jmp 'label_loop (+821)
41 c7 87 04 50 00 00 00 00 00 00 ; mov dword [r15+0x5004], 0
41 c7 87 00 50 00 00 00 00 00 00 ; mov dword [r15+0x5000], 0
; @main_loop:
e8 cc cc cc cc ; call 'rd_buf (+895)
e8 cc cc cc cc ; call 'get_next_token (+900)
e8 cc cc cc cc ; call 'label (+905)
e9 cc cc cc cc ; jmp 'main_loop (+910)
e8 ef fd ff ff ; call 'rd_buf (+895)
e8 57 fe ff ff ; call 'get_next_token (+900)
e8 80 ff ff ff ; call 'label (+905)
e9 ec ff ff ff ; jmp 'main_loop (+910)