| 42,6 → 42,7 |
|---|
| datasegment |
| |
| Save87 dd 0 |
| OldMask dd 0 |
| enddata |
| |
| |
| 56,13 → 57,17 |
|---|
| push EAX ; save registers |
| push EBX ; ... |
| push ECX ; ... |
| push EDX ; ... |
| |
| mov EAX, 68 |
| mov EBX, 15 |
| mov EDX, 10000h ; 1 shl 16 - #MF |
| lea ECX, __FPE2Handler_ |
| int 40h ; set new #FPE handler |
| int 40h ; set new exception handler |
| mov Save87, EAX ; save old handler |
| mov OldMask,EBX ; save old mask |
| |
| pop EDX ; ... |
| pop ECX ; ... |
| pop EBX ; ... |
| pop EAX ; ... |
| 78,6 → 83,7 |
|---|
| _endif ; endif |
| push EAX ; save registers |
| push EBX ; ... |
| ; ECX ???? |
| push EDX ; ... |
| sub ESP,4 ; allocate space for control word |
| fstcw word ptr [ESP] ; get control word |
| 89,10 → 95,12 |
|---|
| |
| mov EAX, 68 |
| mov EBX, 15 |
| mov ECX, dword ptr Save87 |
| int 40h ; set new #FPE handler |
| mov ECX, dword ptr Save87 ; restore handler |
| mov EDX, dword ptr OldMask ; restore mask |
| int 40h ; set new ecxeption handler |
| |
| pop EDX ; ... |
| ; ECX ???? |
| pop EBX ; ... |
| pop EAX ; ... |
| ret |