hello.e


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

~ cat labels.e elf.e hello.e | ./quine > hello && chmod 755 hello && ./hello

: output-start-routine
  current-offset L!' cold-start
  1 :rax mov-reg64-imm32
  1 :rdi mov-reg64-imm64
  L@' origin L@' greeting + :rsi mov-reg64-imm64
  L@' greeting-size :rdx mov-reg64-imm64
  syscall
  60 :rax mov-reg64-imm32
  0 :rdi mov-reg64-imm32
  syscall
  ;

: output-greeting
  current-offset dup L!' greeting 3unroll
  s" Hello, Irenes!" packstring
  current-offset 4 roll - L!' greeting-size ;

~ (output memory start, current output point
~  -- output memory start, current output point)
~
~ Everything directly called by all-contents has this same interface.
~
: all-contents
  0x08000000 L!' origin
  elf-file-header
  elf-program-header
  output-start-routine
  output-greeting
  current-offset L!' total-size
  ;

' all-contents entry-to-execution-token label-loop
swap sys-write bye