unsigned char a, b; | |
void baz (void) | |
{ | |
if (b & 0x08) | |
{ | |
int g = 0; | |
int c = (b & 0x01); | |
int d = a - g - c; | |
int e = (a & 0x0f) - (g & 0x0f); | |
int f = (a & 0xf0) - (g & 0xf0); | |
int h = (a & 0x0f) - (g & 0x0f); | |
if ((a ^ g) & (a ^ d) & 0x80) b |= 0x40; | |
if ((d & 0xff00) == 0) b |= 0x01; | |
if (!((a - h - c) & 0xff)) b |= 0x02; | |
if ((a - g - c) & 0x80) b |= 0x80; | |
a = (e & 0x0f) | (f & 0xf0); | |
} | |
} |