From f18727a49cfc6616629f104b32360089a75c4b49 Mon Sep 17 00:00:00 2001
From: DIvan2000 <divan2000@noreply.localhost>
Date: Mon, 22 Sep 2025 23:25:17 +0400
Subject: [PATCH] Update main.c

---
 src/main.c | 80 +++++++++++++++++++++++++++---------------------------
 1 file changed, 40 insertions(+), 40 deletions(-)

diff --git a/src/main.c b/src/main.c
index 6ecb2ac..3229526 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3,59 +3,53 @@
 #define MOUSE_PORT ((volatile u8*)0xA10003)
 #define Z80_HALT  *((volatile u16*)0xA11100)
 
-#define MOUSE_DELAY 32
+#define MOUSE_DELAY 16
 
 static inline void delay(void) {
-    __asm__ volatile (
-        "move.w %0,%%d0\n\t"
-        "1: subq.w #1,%%d0\n\t"
-        "bne.s 1b"
-        :
-        : "i"(MOUSE_DELAY)
-        : "d0"
-    );
+	__asm__ volatile (
+		"move.w %0,%%d0\n\t"
+		"1: subq.w #1,%%d0\n\t"
+		"bne.s 1b"
+		:
+		: "i"(MOUSE_DELAY)
+		: "d0"
+	);
 }
 
 int main() {
-    VDP_setTextPlane(0);
-    VDP_drawText("Sega Mega Mouse RAW reader", 7, 27);
+	VDP_setTextPlane(0);
+	VDP_drawText("Sega Mega Mouse RAW reader", 7, 27);
 	VDP_drawText("RAW nibbles:", 14,0);
-    u8 nibbles[16] = {0};
-    s16 x = 0;
-    s16 y = 0;
+	u8 nibbles[16] = {0};
+	s16 x = 0;
+	s16 y = 0;
 
-    char buf[40]; //буфер строки для вывода на экран
+	char buf[40]; //буфер строки для вывода на экран
 
-    while(TRUE) {
-
-        SYS_doVBlankProcess();
-
-		VDP_clearTextArea(0, 1, 40, 13);
-
-		
-        //опрос мыши
-        Z80_HALT = 0x0100;
-        *MOUSE_PORT = 0x60; delay();
+	while(TRUE) {		
+		//опрос мыши
+		Z80_HALT = 0x0100;
+		*MOUSE_PORT = 0x60; delay();
 
 		nibbles[0] = *MOUSE_PORT & 0x0F;
 
 
-        for(int i=1;i<10;i++) {
-            *MOUSE_PORT = (i&1)?0x20:0x00;
-            delay();
-            nibbles[i] = *MOUSE_PORT & 0x0F;
-            delay();
-        }
+		for(int i=1;i<10;i++) {
+			*MOUSE_PORT = (i&1)?0x20:0x00;
+			delay();
+			nibbles[i] = *MOUSE_PORT & 0x0F;
+			delay();
+		}
 
-        *MOUSE_PORT = 0x60; delay();
-        Z80_HALT = 0x0000;
+		*MOUSE_PORT = 0x60; delay();
+		Z80_HALT = 0x0000;
 		//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]);
 		VDP_drawText(buf, 13,1);
 
-        //считаем dx dy 
+		//считаем dx dy 
 		s16 dx = (nibbles[6] << 4) | nibbles[7];
 		s16 dy = (nibbles[8] << 4) | nibbles[9];
 		if (nibbles[4]&8) dy = 255;
@@ -65,13 +59,19 @@ int main() {
 		x+=dx;
 		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
 		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);
-		
-    }
+		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;
 }