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Improved VERA code.

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This commit is contained in:
Jesper Gravgaard 2021-01-04 12:26:13 +01:00
parent 2d58a799d5
commit 27d0aa9e67
2 changed files with 3 additions and 4 deletions
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3
src/main/kc/lib/cx16.c
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@ -34,8 +34,7 @@ void memcpy_to_vram(char vbank, void* vdest, void* src, unsigned int num ) {
*VERA_ADDRX_M = >vdest;
*VERA_ADDRX_H = VERA_INC_1 | vbank;
// Transfer the data
char *s = src;
char *end = (char*)src+num;
for(; s!=end; s++)
for(char *s = src; s!=end; s++)
*VERA_DATA0 = *s;
}

4
src/test/kc/examples/cx16/rasterbars.c
View File

@ -54,9 +54,9 @@ void irq_line() {
*VERA_CTRL &= ~VERA_DCSEL;
for(char l=0;l!=230;l++) {
*VERA_DC_BORDER = BARS[l];
for(char i=0;i<24;i++) ; // Wait exactly long enought to go to the next raster line
for(char i=0;i<24;i++) ; // Wait exactly long enough to go to the next raster line
*VERA_DC_BORDER = 0;
for(char i=0;i<23;i++) ; // Wait exactly long enought to go to the next raster line
for(char i=0;i<23;i++) ; // Wait exactly long enough to go to the next raster line
asm { nop nop }
}