mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-11-29 14:51:17 +00:00
82 lines
1.1 KiB
C
82 lines
1.1 KiB
C
|
|
#include <stdio.h>
|
|
#include "bios.h"
|
|
|
|
// http://www.users.globalnet.co.uk/~jg27paw4/pourri/rom-routines.txt
|
|
|
|
void init_stdio(void) {
|
|
__asm
|
|
ld a,#2
|
|
call 0x1601
|
|
__endasm;
|
|
}
|
|
|
|
int putchar(int ch) {
|
|
if (ch == 10) ch = 13; // newline -> CR
|
|
__asm
|
|
ld a,4 (ix)
|
|
rst 0x10
|
|
__endasm;
|
|
return ch;
|
|
}
|
|
|
|
void beep(int divisor, int duration) {
|
|
divisor;
|
|
duration;
|
|
__asm
|
|
ld l,4 (ix)
|
|
ld h,5 (ix)
|
|
ld e,6 (ix)
|
|
ld d,7 (ix)
|
|
call 0x3b5
|
|
__endasm;
|
|
}
|
|
|
|
int keyscan(void) {
|
|
__asm
|
|
call 0x028e
|
|
ld l,e
|
|
ld h,d
|
|
__endasm;
|
|
}
|
|
|
|
void waitkey(int frames) {
|
|
frames;
|
|
__asm
|
|
ld c,4 (ix)
|
|
ld b,5 (ix)
|
|
call 0x1f3d
|
|
__endasm;
|
|
}
|
|
|
|
void setpixel(unsigned char x, unsigned char y) {
|
|
x;
|
|
y;
|
|
__asm
|
|
ld c,4 (ix)
|
|
ld b,5 (ix)
|
|
call 0x22e5
|
|
__endasm;
|
|
}
|
|
|
|
#ifdef __MAIN__
|
|
|
|
void main() {
|
|
init_stdio();
|
|
printf("HELLO WORLD!\r");
|
|
waitkey(50);
|
|
printf("Wait...\r");
|
|
waitkey(50);
|
|
printf("Done!\r");
|
|
beep(1000,20);
|
|
beep(750,20);
|
|
beep(500,20);
|
|
while (1) {
|
|
int key = keyscan();
|
|
if (key != -1) printf("%04x", key);
|
|
}
|
|
while (1);
|
|
}
|
|
|
|
#endif
|