DIvan2000/SegaMouseRAW
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Update main.c

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DIvan2000 2025-09-22 20:11:18 +04:00
parent 9b8db3343b
commit fdcb75c454
1 changed files with 11 additions and 10 deletions
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21
src/main.c
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@ -3,7 +3,7 @@
#define MOUSE_PORT ((volatile u8*)0xA10003)
#define Z80_HALT *((volatile u16*)0xA11100)
#define MOUSE_DELAY 8
#define MOUSE_DELAY 32
static inline void delay(void) {
@ -25,8 +25,8 @@ int main() {
VDP_drawText("Sega Mega Mouse RAW reader", 7, 27);
VDP_drawText("RAW nibbles:", 12,0);
u8 nibbles[16] = {0};
int x = 0;
int y = 0;
s16 x = 0;
s16 y = 0;
char buf[40]; //буфер строки для вывода на экран
@ -34,6 +34,9 @@ int main() {
SYS_doVBlankProcess();
VDP_clearTextArea(0, 1, 40, 13);
//опрос мыши
Z80_HALT = 0x0100;
*MOUSE_PORT = 0x60; delay();
@ -53,25 +56,23 @@ int main() {
//конец опроса мыши
// выводим нибблы на экран
VDP_clearTextArea(0, 1, 40, 1);
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);
//считаем dx dy
int dx = (nibbles[6] << 4) | nibbles[7];
int dy = (nibbles[8] << 4) | nibbles[9];
s16 dx = (nibbles[6] << 4) | nibbles[7];
s16 dy = (nibbles[8] << 4) | nibbles[9];
if (nibbles[4]&8) dy = 255;
if (nibbles[4]&4) dx = 255;
if (nibbles[4]&2) dy = -dy;
if (nibbles[4]&1) dx = -dx;
if (nibbles[4]&2) dy = dy|0xFF00; //sign-extend to 16-bit
if (nibbles[4]&1) dx = dx|0xFF00;
x+=dx;
y+=dy;
//выводим на экран полезные данные
VDP_clearTextArea(0, 10, 40, 3);
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/64,y/64);
sprintf(buf, "dx: %+04d dy: %+04d x: %+04d y: %+04d", dx,dy,x,y);
VDP_drawText(buf, 2, 12);
}