X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=sidebyside;f=samples%2Ffire.c;h=bbea872cf1c92adb17a44345f4451d67d2b9a3d6;hb=4a0a76b01237f365358dae400f25dd35b42bb663;hp=a4810f88e91a201288c21809022dc246f5d96121;hpb=9dbb7d33050170e1dd5df22465e8fe91fdbe9828;p=cc65 diff --git a/samples/fire.c b/samples/fire.c index a4810f88e..bbea872cf 100644 --- a/samples/fire.c +++ b/samples/fire.c @@ -4,13 +4,14 @@ * (w)2002 by groepaz/hitmen * * * * Cleanup and porting by Ullrich von Bassewitz. * + * 2004-06-08, Greg King * * * *****************************************************************************/ /* sync page-flipping to vertical blank */ -//#define DOVSYNC +/* #define DOVSYNC */ #include #include /* for memset */ @@ -25,14 +26,15 @@ # define SCREEN2 0xE400 # define CHARSET 0xE800 # define COLORRAM 0xD800 -# define outb(addr,val) (*(addr)) = (val) +# define outb(addr,val) (*(addr) = (val)) # define inb(addr) (*(addr)) #elif defined(__C128__) +# define BUFFER 0x0400 # define SCREEN1 0xE000 # define SCREEN2 0xE400 # define CHARSET 0xE800 # define COLORRAM 0xD800 -# define outb(addr,val) (*(addr)) = (val) +# define outb(addr,val) (*(addr) = (val)) # define inb(addr) (*(addr)) #elif defined(__CBM510__) # define BUFFER 0xF800 @@ -53,12 +55,12 @@ /* Use static local variables for speed */ -#pragma staticlocals (1); +#pragma static-locals (1); #ifdef DOVSYNC -# define waitvsync() while(VIC.ctrl1 < 0x80) {} +# define waitvsync() while ((signed char)VIC.ctrl1 >= 0) #else # define waitvsync() #endif @@ -67,14 +69,12 @@ static void makechar (void) { - char *font; - static const unsigned char bittab[8] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }; - unsigned char i, ii, b; - int c; - int s,bc; + register char *font; + register unsigned char i, ii, b, bc; + unsigned char c; gotoxy (0, 1); @@ -87,12 +87,11 @@ static void makechar (void) for (c = 0; c < 0x40; ++c) { - s = c; bc = 0; for (i = 0; i < 8; i++){ b = 0; for (ii = 0; ii < 8; ii++) { - bc += s; + bc += c; if (bc > 0x3f) { bc = bc - 0x40; b += bittab[(ii + (i & 1)) & 0x7]; @@ -187,7 +186,7 @@ int main (void) outb (&CIA2.pra, (block & 0xFC) | ((SCREEN1 >> 14) ^ 0x03)); #endif #if defined(__C128__) - /* Save and change some flags, so that kernal/basic interupt handler will + /* Save and change some flags, so that kernal/basic interrupt handler will * not interfere with our routine. */ initflag = *(unsigned char*) 0xA04;