ranger - mirror of ranger - a simple, vim-like file manager

about summary refs log tree commit diff stats

diff options

Diffstat (limited to 'tests')

0 files changed, 0 insertions, 0 deletions

t;vc@akkartik.com> 2019-08-19 23:45:04 -0700 5521' href='/akkartik/mu/commit/examples/ex5.subx?h=hlt&id=668700fd2c48d0380d2e2d1f32faa217ab658fb1'>668700fd ^

76590e79 ^

6602c82f ^

83c67014 ^

ee9a9237 ^

6602c82f ^

8188bbbc ^

6030d7e2 ^

6602c82f ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

6602c82f ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

9d27e966 ^

6030d7e2 ^

6602c82f ^

6030d7e2 ^

6602c82f ^

294a1520 ^

ee9a9237 ^

4
5

8
9
10

12
13

14
15

25
26

36
37

39
40
41

43
44

# Read a character from stdin, save it to a local on the stack, write it to stdout.
#
# To run:
#   $ ./subx translate examples/ex5.subx -o examples/ex5
#   $ ./subx run examples/ex5

== code 0x09000000
#   instruction                     effective address                                                   register    displacement    immediate
# . op          subop               mod             rm32          base        index         scale       r32
# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes

Entry:

    # allocate x on the stack
    81          5/subop/subtract    3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # subtract from ESP

    # syscall(read, stdin, x, 1)
    # . fd = 0 (stdin)
    bb/copy-to-EBX  0/imm32
    # . data = x (location to write result to)
    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              1/r32/ECX   4/disp8         .                 # copy ESP+4 to ECX
    # . size = 1 character
    ba/copy-to-EDX  1/imm32
    # . syscall
    b8/copy-to-EAX  3/imm32/read
    cd/syscall  0x80/imm8

    # syscall(write, stdout, x, 1)
    # . fd = 1 (stdout)
    bb/copy-to-EBX  1/imm32
    # . data = x (location to read from)
    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              1/r32/ECX   4/disp8         .                 # copy ESP+4 to ECX
    # . size = 1 character
    ba/copy-to-EDX  1/imm32
    # . syscall
    b8/copy-to-EAX  4/imm32/write
    cd/syscall  0x80/imm8

    # syscall(exit, EBX)
    b8/copy-to-EAX  1/imm32/exit
    cd/syscall  0x80/imm8

== data 0x0a000000

# . . vim:nowrap:textwidth=0


context:
space:
mode: