diff options
Diffstat (limited to 'subx/057stop.subx')
| -rw-r--r-- | subx/057stop.subx | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/subx/057stop.subx b/subx/057stop.subx index b1aee746..f9e67f9e 100644 --- a/subx/057stop.subx +++ b/subx/057stop.subx @@ -56,7 +56,7 @@ tailor-exit-descriptor: # ed : (address exit-descriptor), nbytes : int -> <void 50/push-EAX 51/push-ECX # EAX = nbytes - 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 # Let X be the value of ESP in the caller, before the call to tailor-exit-descriptor. # The return address for a call in the caller's body will be at: # X-8 if the caller takes 4 bytes of args for the exit-descriptor (add 4 bytes for the return address) @@ -83,7 +83,7 @@ tailor-exit-descriptor: # ed : (address exit-descriptor), nbytes : int -> <void f7 3/subop/negate 3/mod/direct 0/rm32/EAX . . . . . . # negate EAX 8d/copy-address 1/mod/*+disp8 4/rm32/sib 5/base/EBP 0/index/EAX . 0/r32/EAX 0xc/disp8 . # copy EBP+EAX+12 to EAX # copy EAX to ed->target - 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX + 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX 89/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to *ECX # initialize ed->value c7 0/subop/copy 1/mod/*+disp8 1/rm32/ECX . . . . 4/disp8 0/imm32 # copy to *(ECX+4) @@ -172,7 +172,7 @@ _test-stop-1: # ed : (address exit-descriptor) 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # _test-stop-2(ed) # . . push args - 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 _test-stop-2/disp32 # should never get past this point @@ -200,7 +200,7 @@ _test-stop-2: # ed : (address exit-descriptor) # . stop(ed, 1) # . . push args 68/push 1/imm32 - 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 stop/disp32 # should never get past this point |