| 25,14 → 25,10 |
|---|
| ; input service at INT 21h,AH=0x0A. |
| ; This buffer is right before the stack, so in case of a stack overflow event |
| ; (for example because of a "too ambitious" TSR) only this buffer is damaged, |
| ; and can be invalidated without much harm. |
| INPUTBUF: times 130 db 0 |
| ; and can be invalidated without much harm. To detect such damage, SvarCOM's |
| ; transient part is appending a signature at the end of the buffer. |
| INPUTBUF: times 132 db 0 ; 130 bytes for the input buffer + 2 for signature |
| |
| ; This stack sig is a guardian value that is checked by the transient part of |
| ; SvarCOM to detect possible stack overflows. If a stack overflow occurs, then |
| ; the INPUTBUFF area above is invalidated and stack signature reverted. |
| STACKSIG dw 0xCAFE |
| |
| ; DOS int 21h functions that I use require at least 40 bytes of stack under |
| ; DOS-C (FreeDOS) kernel, so here I reserve 64 bytes juste to be sure |
| STACKBUF db "XXX SVARCOM RMOD BY MATEUSZ VISTE XXXXXXXXXXXXXXXXXXXXXXXXXXXX" |