DIvan2000/SegaMouseRAW
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Update main.c

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DIvan2000 2025-09-22 23:25:17 +04:00
parent 5e1ba9d749
commit f18727a49c
1 changed files with 40 additions and 40 deletions
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80
src/main.c
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@ -3,59 +3,53 @@
#define MOUSE_PORT ((volatile u8*)0xA10003) #define MOUSE_PORT ((volatile u8*)0xA10003)
#define Z80_HALT *((volatile u16*)0xA11100) #define Z80_HALT *((volatile u16*)0xA11100)
#define MOUSE_DELAY 32 #define MOUSE_DELAY 16
static inline void delay(void) { static inline void delay(void) {
__asm__ volatile ( __asm__ volatile (
"move.w %0,%%d0\n\t" "move.w %0,%%d0\n\t"
"1: subq.w #1,%%d0\n\t" "1: subq.w #1,%%d0\n\t"
"bne.s 1b" "bne.s 1b"
: :
: "i"(MOUSE_DELAY) : "i"(MOUSE_DELAY)
: "d0" : "d0"
); );
} }
int main() { int main() {
VDP_setTextPlane(0); VDP_setTextPlane(0);
VDP_drawText("Sega Mega Mouse RAW reader", 7, 27); VDP_drawText("Sega Mega Mouse RAW reader", 7, 27);
VDP_drawText("RAW nibbles:", 14,0); VDP_drawText("RAW nibbles:", 14,0);
u8 nibbles[16] = {0}; u8 nibbles[16] = {0};
s16 x = 0; s16 x = 0;
s16 y = 0; s16 y = 0;
char buf[40]; //буфер строки для вывода на экран char buf[40]; //буфер строки для вывода на экран
while(TRUE) { while(TRUE) {
//опрос мыши
SYS_doVBlankProcess(); Z80_HALT = 0x0100;
*MOUSE_PORT = 0x60; delay();
VDP_clearTextArea(0, 1, 40, 13);
//опрос мыши
Z80_HALT = 0x0100;
*MOUSE_PORT = 0x60; delay();
nibbles[0] = *MOUSE_PORT & 0x0F; nibbles[0] = *MOUSE_PORT & 0x0F;
for(int i=1;i<10;i++) { for(int i=1;i<10;i++) {
*MOUSE_PORT = (i&1)?0x20:0x00; *MOUSE_PORT = (i&1)?0x20:0x00;
delay(); delay();
nibbles[i] = *MOUSE_PORT & 0x0F; nibbles[i] = *MOUSE_PORT & 0x0F;
delay(); delay();
} }
*MOUSE_PORT = 0x60; delay(); *MOUSE_PORT = 0x60; delay();
Z80_HALT = 0x0000; Z80_HALT = 0x0000;
//конец опроса мыши //конец опроса мыши
// выводим нибблы на экран //выводим нибблы на экран
sprintf(buf, "%X%X%X%X %X %X %X%X %X%X", nibbles[0],nibbles[1],nibbles[2],nibbles[3],nibbles[4],nibbles[5],nibbles[6],nibbles[7],nibbles[8],nibbles[9]); sprintf(buf, "%X%X%X%X %X %X %X%X %X%X", nibbles[0],nibbles[1],nibbles[2],nibbles[3],nibbles[4],nibbles[5],nibbles[6],nibbles[7],nibbles[8],nibbles[9]);
VDP_drawText(buf, 13,1); VDP_drawText(buf, 13,1);
//считаем dx dy //считаем dx dy
s16 dx = (nibbles[6] << 4) | nibbles[7]; s16 dx = (nibbles[6] << 4) | nibbles[7];
s16 dy = (nibbles[8] << 4) | nibbles[9]; s16 dy = (nibbles[8] << 4) | nibbles[9];
if (nibbles[4]&8) dy = 255; if (nibbles[4]&8) dy = 255;
@ -65,13 +59,19 @@ int main() {
x+=dx; x+=dx;
y+=dy; y+=dy;
//ограничиваем x и y
x = (x > 9999) ? -9999 : (x < -9999 ? 9999 : x);
y = (y > 9999) ? -9999 : (y < -9999 ? 9999 : y);
//выводим на экран полезные данные //выводим на экран полезные данные
sprintf(buf, "buttons: %c%c%c%c", (nibbles[5]&8&&1)+'0',(nibbles[5]&4&&1)+'0',(nibbles[5]&2&&1)+'0',(nibbles[5]&1&&1)+'0'); sprintf(buf, "buttons: %c%c%c%c", (nibbles[5]&8&&1)+'0',(nibbles[5]&4&&1)+'0',(nibbles[5]&2&&1)+'0',(nibbles[5]&1&&1)+'0');
VDP_drawText(buf, 2, 10);
sprintf(buf, "dx: %+04d dy: %+04d x: %+04d y: %+04d", dx,dy,x,y);
VDP_drawText(buf, 2, 12); VDP_drawText(buf, 2, 12);
sprintf(buf, "dx: %+04d dy: %+04d x: %+05d y: %+05d", dx,dy,x,y);
} VDP_drawText(buf, 2, 13);
return 0; //конец кадра
VDP_waitVSync();
}
return 0;
} }