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-rw-r--r--subx/ex7.subx26
1 files changed, 0 insertions, 26 deletions
diff --git a/subx/ex7.subx b/subx/ex7.subx
index e312edbe..78b362db 100644
--- a/subx/ex7.subx
+++ b/subx/ex7.subx
@@ -14,76 +14,50 @@
 
 # main:
   # prepare to make a call
-# 54
   55/push                         .               .             .           .             .           .           .               .                 # push EBP
-# 55
   89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-# 57
   # factorial(5)
   68/push                         .               .             .           .             .           .           .               5/imm32           # push 5
-# 5c
   e8/call                         .               .             .           .             .           .           factorial/disp32
-# 61
   # discard arg
   5a/pop                          .               .             .           .             .           .           .               .                 # pop into EDX
-# 62
   # clean up after call
   89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-# 64
   5d/pop                          .               .             .           .             .           .           .               .                 # pop to EBP
 
   # exit(EAX)
-# 65
   89/copy                         3/mod/direct    3/rm32/EBX    .           .             .           0/r32/EAX   .               .                 # copy EAX to EBX
-# 67
   b8/copy                         .               .             .           .             .           .           .               1/imm32           # copy 1 to EAX
-# 6c
   cd/syscall                      .               .             .           .             .           .           .               0x80/imm8         # int 80h
 
 # factorial(n)
-# 6e
 factorial:
   # initialize n
   8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              2/r32/EDX   4/disp8         .                 # copy *(ESP+4) to EDX
-# 72
   # initialize EAX to 1 (base case)
   b8/copy                         .               .             .           .             .           .           .               1/imm32           # copy 1 to EAX
-# 77
   # if (n <= 1) jump exit
   81          7/subop/compare     3/mod/direct    2/rm32/EDX    .           .             .           .           .               1/imm32           # compare EDX with 1
-# 7d
   7e/jump-if                      .               .             .           .             .           .           factorial:exit/disp8              # jump if <= to exit
-# 7f
   # EBX: n-1
   89/copy                         3/mod/direct    3/rm32/EBX    .           .             .           2/r32/EDX   .               .                 # copy EDX to EBX
-# 81
   81          5/subop/subtract    3/mod/direct    3/rm32/EBX    .           .             .           .           .               1/imm32           # subtract 1 from EBX
-# 87
   # prepare call
   55/push                         .               .             .           .             .           .           .               .                 # push EBP
-# 88
   89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
   # EAX: factorial(n-1)
-# 8a
   53/push                         .               .             .           .             .           .           .               .                 # push EBX
-# 8b
   e8/call                         .               .             .           .             .           .           factorial/disp32
-# 90
   # discard arg
   5e/pop                          .               .             .           .             .           .           .               .                 # pop into ESI
-# 91
   # clean up after call
   89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-# 93
   5d/pop                          .               .             .           .             .           .           .               .                 # pop to EBP
-# 94
   # refresh n
   8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              2/r32/EDX   4/disp8         .                 # copy *(ESP+4) to EDX
-# 98
   # return n * factorial(n-1)
   0f af/multiply                  3/mod/direct    2/rm32/EDX    .           .             .           0/r32/EAX   .               .                 # multiply EDX (n) into EAX (factorial(n-1))
   # TODO: check for overflow
-# 9b
 factorial:exit:
   c3/return