diff --git a/.gitignore b/.gitignore index c301112..89f9ac0 100644 --- a/.gitignore +++ b/.gitignore @@ -1,2 +1 @@ out/ -*.bin diff --git a/inc/mouse.h b/inc/mouse.h deleted file mode 100644 index 46fab17..0000000 --- a/inc/mouse.h +++ /dev/null @@ -1,17 +0,0 @@ -#ifndef MOUSE_H -#define MOUSE_H - -#include "genesis.h" - -typedef struct { - u8 valid; // =1 если мышь (сигнатура совпала) - u8 buttons; - s16 dx; - s16 dy; - u8 nibbles[10]; // для вывода RAW -} MouseData; - -// Чтение мыши с порта -void read_mouse(MouseData* dst, volatile u8* port); - -#endif diff --git a/res/fluttershy.png b/res/fluttershy.png deleted file mode 100644 index 4ce4bc0..0000000 Binary files a/res/fluttershy.png and /dev/null differ diff --git a/src/main.c b/src/main.c index f64fbb4..6ecb2ac 100644 --- a/src/main.c +++ b/src/main.c @@ -1,83 +1,77 @@ #include "genesis.h" -#include "mouse.h" -#define PORT1 ((volatile u8*)0xA10003) -#define PORT2 ((volatile u8*)0xA10005) +#define MOUSE_PORT ((volatile u8*)0xA10003) +#define Z80_HALT *((volatile u16*)0xA11100) + +#define MOUSE_DELAY 32 + +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" + ); +} 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); - - s16 x1=0,y1=0, x2=0,y2=0; - u8 frame = 0; - char buf[40]; //буфер строки для вывода на экран + u8 nibbles[16] = {0}; + s16 x = 0; + s16 y = 0; - while(TRUE) { - MouseData m1; - read_mouse(&m1, PORT1); - sprintf(buf, "+%X%X%X%X %X %X %X%X %X%X", - m1.nibbles[0], m1.nibbles[1], m1.nibbles[2], m1.nibbles[3], - m1.nibbles[4], m1.nibbles[5], m1.nibbles[6], m1.nibbles[7], - m1.nibbles[8], m1.nibbles[9]); - VDP_clearTextArea(1,2,1,20); - VDP_drawText(buf, 1, 2 + frame%20); + char buf[40]; //буфер строки для вывода на экран - if(m1.valid) { - x1 += m1.dx; y1 += m1.dy; - if(x1>9999) x1=-9999; else if(x1<-9999) x1=9999; - if(y1>9999) y1=-9999; else if(y1<-9999) y1=9999; + while(TRUE) { - sprintf(buf, "buttons: %c%c%c%c", - ((m1.buttons>>3)&1)+'0', - ((m1.buttons>>2)&1)+'0', - ((m1.buttons>>1)&1)+'0', - ((m1.buttons>>0)&1)+'0'); - VDP_drawText(buf, 2, 23); + SYS_doVBlankProcess(); + + VDP_clearTextArea(0, 1, 40, 13); - sprintf(buf, "PORT1: dx:%+04d dy:%+04d x:%+05d y:%+05d", m1.dx,m1.dy,x1,y1); - VDP_drawText(buf, 1, 24); - } else { - VDP_clearTextArea(2,23,13,1); - sprintf(buf, "PORT1: Mouse not recognized"); - VDP_drawText(buf, 1, 24); - } - MouseData m2; - read_mouse(&m2, PORT2); - sprintf(buf, "%X%X%X%X %X %X %X%X %X%X+", - m2.nibbles[0], m2.nibbles[1], m2.nibbles[2], m2.nibbles[3], - m2.nibbles[4], m2.nibbles[5], m2.nibbles[6], m2.nibbles[7], - m2.nibbles[8], m2.nibbles[9]); - VDP_clearTextArea(38,2,1,20); - VDP_drawText(buf, 24, 2 + frame%20); + //опрос мыши + Z80_HALT = 0x0100; + *MOUSE_PORT = 0x60; delay(); - if(m2.valid) { - x2 += m2.dx; y2 += m2.dy; - if(x2>9999) x2=-9999; else if(x2<-9999) x2=9999; - if(y2>9999) y2=-9999; else if(y2<-9999) y2=9999; + nibbles[0] = *MOUSE_PORT & 0x0F; - sprintf(buf, "buttons: %c%c%c%c", - ((m2.buttons>>3)&1)+'0', - ((m2.buttons>>2)&1)+'0', - ((m2.buttons>>1)&1)+'0', - ((m2.buttons>>0)&1)+'0'); - VDP_drawText(buf, 25, 23); - sprintf(buf, "PORT2: dx:%+04d dy:%+04d x:%+05d y:%+05d", m2.dx,m2.dy,x2,y2); - VDP_drawText(buf, 1, 25); - } else { - sprintf(buf, "PORT2: Mouse not recognized"); - VDP_clearTextArea(25,23,13,1); - VDP_drawText(buf, 1, 25); - } + 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; + //конец опроса мыши + + // 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 + 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|0xFF00; //sign-extend to 16-bit + if (nibbles[4]&1) dx = dx|0xFF00; + x+=dx; + y+=dy; + + //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); - //счётчик кадров для вывода истории нибблов - frame++; + } - //конец кадра - VDP_waitVSync(); - } - - return 0; + return 0; } diff --git a/src/mouse.c b/src/mouse.c deleted file mode 100644 index 1420cb0..0000000 --- a/src/mouse.c +++ /dev/null @@ -1,47 +0,0 @@ -#include "mouse.h" - -#define MOUSE_DELAY 16 -#define Z80_HALT *((volatile u16*)0xA11100) - -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" - ); -} - -void read_mouse(MouseData* dst, volatile u8* port) { - - dst->valid = 0; - - Z80_HALT = 0x0100; - *port = 0x60; delay(); - - dst->nibbles[0] = *port & 0x0F; - for(int i=1; i<10; i++) { - *port = (i&1) ? 0x20 : 0x00; - delay(); - dst->nibbles[i] = *port & 0x0F; - delay(); - } - - *port = 0x60; delay(); - Z80_HALT = 0x0000; - - // проверка сигнатуры 0BFF - if (dst->nibbles[0]==0x0 && dst->nibbles[1]==0xB && dst->nibbles[2]==0xF && dst->nibbles[3]==0xF) { - dst->valid = 1; - dst->dx = (dst->nibbles[6] << 4) | dst->nibbles[7]; - dst->dy = (dst->nibbles[8] << 4) | dst->nibbles[9]; - if (dst->nibbles[4] & 8) dst->dy = 255; - if (dst->nibbles[4] & 4) dst->dx = 255; - if (dst->nibbles[4] & 2) dst->dy |= 0xFF00; // sign-extend - if (dst->nibbles[4] & 1) dst->dx |= 0xFF00; - - dst->buttons = dst->nibbles[5]; - } -}