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#
# HEX4 for Linux-i386-ELF
#
# Copyright (C) 2001, Edmund GRIMLEY EVANS <edmundo@rano.org>
#
###
### ELF headers
###
# Elf32_Ehdr
7f 45 4c 46 01 01 01 # e_ident
00 00 00 00 00 00 00 00 00
02 00 # e_type
03 00 # e_machine
01 00 00 00 # e_version
00 88 04 08 #! # e_entry = 0x08048000 + _start
34 00 00 00 # e_phoff = len(ehdr)
00 00 00 00 # e_shoff
00 00 00 00 # e_flags
34 00 # e_ehsize = len(ehdr)
20 00 # e_phentsize = len(phdr)
01 00 # e_phnum
00 00 # e_shentsize
00 00 # e_shnum
00 00 # e_shstrndx
# Elf32_Phdr
01 00 00 00 # p_type
00 00 00 00 # p_offset
00 80 04 08 # p_vaddr = 0x08048000
00 80 04 08 # p_paddr = 0x08048000
00 09 00 00 #! # p_filesz = len(ehdr) + len(phdr) + len(prog)
00 09 00 00 #! # p_memsz = len(ehdr) + len(phdr) + len(prog)
07 00 00 00 # p_flags
00 10 00 00 # p_align
######################################################################
:drop
5b # pop %ebx
58 # pop %eax
ff e3 # jmp *%ebx
:swap
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
50 # push %eax
51 # push %ecx
ff e3 # jmp *%ebx
:dup,
5b # pop %ebx
58 # pop %eax
50 # push %eax
50 # push %eax
ff e3 # jmp *%ebx
:rot,
58 # pop %eax
5b # pop %ebx
59 # pop %ecx
5a # pop %edx
51 # push %ecx
53 # push %ebx
52 # push %edx
50 # push %eax
c3
:pick
8b 44 24 04 # mov 4(%esp),%eax
01 c0 # add %eax,%eax
01 c0 # add %eax,%eax
8d 5c 24 08 # lea 8(%esp),%ebx
01 d8 # add %ebx,%eax
8b 00 # mov (%eax),%eax
89 44 24 04 # mov %eax,4(%esp)
c3 # ret
# Arithmetic
:-,,,
5b # pop %ebx
58 # pop %eax
29 04 24 # sub %eax,(%esp)
ff e3 # jmp *%ebx
:+,,,
5b # pop %ebx
58 # pop %eax
01 04 24 # add %eax,(%esp)
ff e3 # jmp *%ebx
:*,,,
5b # pop %ebx
58 # pop %eax
0f af 04 24 # imul (%esp),%eax
89 04 24 # mov %eax,(%esp)
ff e3 # jmp *%ebx
:<<,,
5b # pop %ebx
59 # pop %ecx
58 # pop %eax
d3 e0 # shl %cl,%eax
50 # push %eax
ff e3 # jmp *%ebx
:>>,,
5b # pop %ebx
59 # pop %ecx
58 # pop %eax
d3 f8 # sar %cl,%eax
50 # push %eax
ff e3 # jmp *%ebx
# Comparisons
:<,,,
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
39 c1 # cmp %eax,%ecx
0f 9c c0 # setl %al
25 ff 00 00 00 # and $0xff,%eax
50 # push %eax
ff e3 # jmp *%ebx
:<=,,
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
39 c1 # cmp %eax,%ecx
0f 9e c0 # setle %al
25 ff 00 00 00 # and $0xff,%eax
50 # push %eax
ff e3 # jmp *%ebx
:==,,
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
39 c1 # cmp %eax,%ecx
0f 94 c0 # sete %al
25 ff 00 00 00 # and $0xff,%eax
50 # push %eax
ff e3 # jmp *%ebx
:!=,,
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
39 c1 # cmp %eax,%ecx
0f 95 c0 # setne %al
25 ff 00 00 00 # and $0xff,%eax
50 # push %eax
ff e3 # jmp *%ebx
# Memory access
:@,,,
5b # pop %ebx
58 # pop %eax
8b 00 # mov (%eax),%eax
50 # push %eax
ff e3 # jmp *%ebx
:=,,,
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
89 08 # mov %ecx,(%eax)
ff e3 # jmp *%ebx
:reab # Convert relative address to absolute
5b # pop %eax
8d 43 fb # lea -5(%ebx),%eax
01 04 24 # add %eax,(%esp)
ff e3 # jmp *%ebx
:arg1
5b # pop %ebx
58 # pop %eax
59 # pop %ecx
51 # push %ecx
50 # push %eax
51 # push %ecx
ff e3 # jmp *%ebx
:0r0, # Jump here to return 0 values from a function with 0 args
c3 # ret
:0r1, # Jump here to return 1 value from a function with 0 args
58 # pop %eax
5b # pop %ebx
50 # push %eax
ff e3 # jmp *%ebx
:1r0, # Jump here to return 0 values from a function with 1 arg
5b # pop %ebx
59 # pop %ecx
ff e3 # jmp *%ebx
:1r1, # Jump here to return 1 value from a function with 1 arg
58 # pop %eax
5b # pop %ebx
59 # pop %ecx
50 # push %eax
ff e3 # jmp *%ebx
######################################################################
###
### System calls
###
:exit
58 # pop %eax
58 # pop %eax
89 c3 # mov %eax,%ebx
31 c0 # xor %eax,%eax
40 # inc %eax
cd 80 # int $0x80
:brk,
5b # pop %ebx
58 # pop %eax
53 # push %ebx
89 c3 # mov %eax,%ebx
b8 2d 00 00 00 # mov $0x45,%eax
cd 80 # int $0x80
5b # pop %ebx
50 # push %eax
53 # push %ebx
c3 # ret
:get1
6a 00 # push $0x0
31 db # xor %ebx,%ebx
89 e1 # mov %esp,%ecx
89 da # mov %ebx,%edx
42 # inc %edx
b8 03 00 00 00 # mov $0x3,%eax
cd 80 # int $0x80
85 c0 # test %eax,%eax
74 02 # je gete
58 # pop %eax
c3 # ret
:gete
31 c0 # xor %eax,%eax
68 00 00 00 00
68 00 00 00 00
e8 .exit
:getc
e8 .get1
50 # push %eax
e8 .swap
c3 # ret
:putc
31 db # xor %ebx,%ebx
43 # inc %ebx
8d 4c 24 04 # lea 0x4(%esp,1),%ecx
89 da # mov %ebx,%edx
b8 04 00 00 00 # mov $0x4,%eax
cd 80 # int $0x80
5b # pop %ebx
58 # pop %eax
ff e3 # jmp *%ebx
:sbrk
e8 .arg1
68 00 00 00 00
e8 .brk,
e8 .dup,
e8 .rot,
e8 .+,,,
e8 .dup,
e8 .brk,
e8 .==,,
58 85 c0 0f 85 .1r1,
e8 .drop
68 ff ff ff ff
e9 .1r1,
######################################################################
###
### Debugging
###
# A stackless implementation of exit(42), for debugging:
# 31 c0 40 b3 2a cd 80
:outw
e8 .arg1
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .putc
e9 .1r0,
:outs
68 de ad be ef
e8 .outw
e8 .outw
e8 .outw
e8 .outw
e8 .outw
e8 .outw
ff
######################################################################
###
### The program itself
###
:pos, # pos:
00 00 00 00
:stb0 # symtab:
00 00 00 00
:stbp # symtabp:
00 00 00 00
# filelen:
00 00 00 00
:genb
e8 .arg1
e8 .putc
68 .pos,
e8 .reab
e8 .dup,
e8 .@,,,
68 01 00 00 00
e8 .+,,,
e8 .swap
e8 .=,,,
e9 .1r0,
:genw
e8 .arg1
68 .pos,
e8 .reab
e8 .dup,
e8 .@,,,
68 04 00 00 00
e8 .+,,,
e8 .swap
e8 .=,,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .putc
e9 .1r0,
:rsy1
e8 .drop
e9 .1r1,
:rsym
e8 .arg1
:rsyl
68 ef be ad de
e8 .*,,,
e8 .getc
e8 .dup,
68 20 00 00 00
e8 .<=,,
58 85 c0 0f 85 .rsy1
e8 .+,,,
e9 .rsyl
:asyo
e8 .drop
68 .stbp
e8 .reab
e8 .dup,
e8 .@,,,
e8 .swap
e8 .dup,
e8 .@,,,
68 08 00 00 00
e8 .+,,,
68 08 00 00 00
e8 .sbrk
e8 .drop
e8 .swap
e8 .=,,,
e8 .dup,
e8 .rot,
e8 .swap
e8 .=,,,
68 04 00 00 00
e8 .+,,,
68 .pos,
e8 .reab
e8 .@,,,
e8 .swap
e8 .=,,,
e9 .1r0,
:asye
68 02 00 00 00
e8 .exit
:asym
e8 .arg1
68 .stb0
e8 .reab
e8 .@,,,
:asyl
e8 .dup,
68 .stbp
e8 .reab
e8 .@,,,
e8 .==,,
58 85 c0 0f 85 .asyo
e8 .dup,
e8 .@,,,
68 02 00 00 00
e8 .pick
e8 .==,,
58 85 c0 0f 85 .asye
68 08 00 00 00
e8 .+,,,
e9 .asyl
:wsyo
68 .pos,
e8 .reab
e8 .dup,
e8 .@,,,
68 04 00 00 00
e8 .+,,,
e8 .swap
e8 .=,,,
e8 .swap
e8 .drop
68 04 00 00 00
e8 .+,,,
e8 .@,,,
68 .pos,
e8 .reab
e8 .@,,,
e8 .-,,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .dup,
e8 .putc
68 08 00 00 00
e8 .>>,,
e8 .putc
e9 .1r0,
:wsye
68 03 00 00 00
e8 .exit
:wsym
e8 .arg1
68 .stb0
e8 .reab
e8 .@,,,
:wsyl
e8 .dup,
68 .stbp
e8 .reab
e8 .@,,,
e8 .==,,
58 85 c0 0f 85 .wsye
e8 .dup,
e8 .@,,,
68 02 00 00 00
e8 .pick
e8 .==,,
58 85 c0 0f 85 .wsyo
68 08 00 00 00
e8 .+,,,
e9 .wsyl
:hex1
68 30 00 00 00
e8 .-,,,
e9 .1r1,
:hex2
68 57 00 00 00
e8 .-,,,
e9 .1r1,
:err1
68 11 00 00 00
e8 .exit
:conh
e8 .arg1
e8 .dup,
68 30 00 00 00
e8 .<,,,
58 85 c0 0f 85 .err1
e8 .dup,
68 3a 00 00 00
e8 .<,,,
58 85 c0 0f 85 .hex1
e8 .dup,
68 61 00 00 00
e8 .<,,,
58 85 c0 0f 85 .err1
e8 .dup,
68 67 00 00 00
e8 .<,,,
58 85 c0 0f 85 .hex2
e9 .err1
:tokh
e8 .drop
e8 .getc
e8 .conh
68 04 00 00 00
e8 .<<,,
e8 .getc
e8 .conh
e8 .+,,,
e8 .genb
e9 .0r0,
:gets
e8 .drop
e9 .0r0,
:comm
e8 .drop
:coml
e8 .getc
68 0a 00 00 00
e8 .!=,,
58 85 c0 0f 85 .coml
e9 .0r0,
:isd0
e8 .drop
68 00 00 00 00
e9 .1r1,
:isd1
68 01 00 00 00
e9 .1r1,
:isdi
e8 .arg1
e8 .dup,
68 30 00 00 00
e8 .<,,,
58 85 c0 0f 85 .isd0
68 3a 00 00 00
e8 .<,,,
58 85 c0 0f 85 .isd1
68 00 00 00 00
e9 .1r1,
:tkne
e8 .drop
68 68 00 00 00
e8 .genb
e8 .genw
e9 .0r0,
:tokn
68 00 00 00 00
e8 .swap
:tknl
e8 .dup,
68 20 00 00 00
e8 .<=,,
58 85 c0 0f 85 .tkne
68 30 00 00 00
e8 .-,,,
e8 .swap
68 0a 00 00 00
e8 .*,,,
e8 .+,,,
e8 .getc
e9 .tknl
:tokd
e8 .drop
e8 .getc
e8 .rsym
e8 .asym
e9 .0r0,
:toku
68 e8 00 00 00
e8 .genb
e8 .rsym
e8 .wsym
e9 .0r0,
:toka
68 68 00 00 00
e8 .genb
e8 .drop
e8 .getc
e8 .rsym
e8 .wsym
e9 .0r0,
:gett
e8 .getc
e8 .dup,
68 20 00 00 00
e8 .<=,,
58 85 c0 0f 85 .gets # white space
e8 .dup,
68 23 00 00 00
e8 .==,,
58 85 c0 0f 85 .comm # '#'
e8 .dup,
e8 .isdi
58 85 c0 0f 85 .tokn # number
e8 .dup,
68 3a 00 00 00
e8 .==,,
58 85 c0 0f 85 .tokd # ':'
e8 .dup,
68 27 00 00 00
e8 .==,,
58 85 c0 0f 85 .tokh # "'"
e8 .dup,
68 26 00 00 00
e8 .==,,
58 85 c0 0f 85 .toka # '&'
e9 .toku
:star
68 00 00 00 00
e8 .sbrk
e8 .dup,
68 .stb0
e8 .reab
e8 .=,,,
68 .stbp
e8 .reab
e8 .=,,,
:loo1
e8 .gett
e9 .loo1
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e9 .star
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