| 0,0 → 1,69 |
|---|
| /* |
| * replacement for a couple of libc functions |
| */ |
| |
| #include <i86.h> |
| #include <stddef.h> |
| |
| #include "libc.h" |
| |
| |
| |
| unsigned short mdr_dos_resizeblock(unsigned short siz, unsigned short segn) { |
| unsigned short res = 0; |
| |
| _asm { |
| push bx |
| push es |
| |
| mov ah, 0x4a |
| mov bx, siz |
| mov es, segn |
| int 0x21 |
| jnc done |
| mov res, ax |
| |
| done: |
| |
| pop es |
| pop bx |
| } |
| |
| return(res); |
| } |
| |
| |
| unsigned short mdr_dos_write(unsigned short handle, const void far *buf, unsigned short count, unsigned short *bytes) { |
| unsigned short res = 0; |
| unsigned short resax = 0; |
| unsigned short buf_seg = FP_SEG(buf); |
| unsigned short buf_off = FP_OFF(buf); |
| |
| _asm { |
| push bx |
| push cx |
| push dx |
| |
| mov ah, 0x40 |
| mov bx, handle |
| mov cx, count |
| mov dx, buf_off |
| push ds |
| mov ds, buf_seg |
| |
| int 0x21 |
| pop ds |
| jnc done |
| mov res, ax |
| |
| done: |
| mov resax, ax |
| |
| pop dx |
| pop cx |
| pop bx |
| } |
| |
| *bytes = resax; |
| return(res); |
| } |