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fixed colors and getting closer

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This commit is contained in:
Bjorn Einar Bjarntes 2021-12-18 17:15:08 +01:00
parent 4af9a3c7d6
commit 5f55357441
1 changed files with 11 additions and 6 deletions
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17
src/main.c
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@ -13,7 +13,7 @@
unsigned short i;
BYTE x; // maybe if the ant does not go tooo far it could be an int..
unsigned short x; // maybe if the ant does not go tooo far it could be an int..
BYTE y;
BYTE direction; // 0 = right, 64 = up, 128 = left, 192 = down
void setAndClearHiRes(void) {
@ -34,7 +34,7 @@ void setAndClearHiRes(void) {
// Clear colors
for (i =0;i< 1000; i++)
{
*(BYTE*)(0x400+i) = 0;
*(BYTE*)(0x400+i) = 0x0F;
}
}
@ -44,9 +44,13 @@ int isPositionWhite(long x, int y)
return 0; // 0 er false...
}
void setPositionBlack(long x, int y)
void setPositionBlack(unsigned short x, BYTE y)
{
int ra = 320 * (int)(y/8) + (y & 7);
int ba = 8 * (int)(x/8);
int ma = 2^(7-(x & 7));
int ad = ma+ra+ba;
*(BYTE*)(ad) = *(BYTE*)(ad) | ma;
}
void setPositionWhite(long x, int y)
@ -62,8 +66,9 @@ int main(void) {
printf("%d", direction);
setAndClearHiRes();
while (1) {
setPositionBlack(x,y);
x = x+1;
y = y + 1;
}