diff options
Diffstat (limited to 'subx/063print-byte.subx')
| -rw-r--r-- | subx/063print-byte.subx | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/subx/063print-byte.subx b/subx/063print-byte.subx index 61b19146..8bd9fbfc 100644 --- a/subx/063print-byte.subx +++ b/subx/063print-byte.subx @@ -19,7 +19,7 @@ print-byte: # f : (address buffered-file), n : int -> <void> # . save registers 50/push-EAX # AL = convert upper nibble to hex - 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX + 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX c1/shift 5/subop/logic-right 3/mod/direct 0/rm32/EAX . . . . . 4/imm8 # shift EAX right by 4 bits, while padding zeroes # . hex-char(AL) # . . push args @@ -31,13 +31,13 @@ print-byte: # f : (address buffered-file), n : int -> <void> # write-byte(f, AL) # . . push args 50/push-EAX - ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8) + ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call write-byte/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # AL = convert lower nibble to hex - 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX + 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 0xc/disp8 . # copy *(EBP+12) to EAX 25/and-EAX 0xf/imm32 # . hex-char(AL) # . . push args @@ -49,7 +49,7 @@ print-byte: # f : (address buffered-file), n : int -> <void> # write-byte(f, AL) # . . push args 50/push-EAX - ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 . # push *(EBP+8) + ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call write-byte/disp32 # . . discard args @@ -70,7 +70,7 @@ hex-char: # n : int -> char_or_error/EAX 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # EAX = n - 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX + 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX # if it's <= 9 add '0' to it 81 7/subop/compare 3/mod/direct 0/rm32/EAX . . . . . 0x9/imm32 # compare EAX 7f/jump-if-greater $hex-char:check2/disp8 |