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62 lines
737 B
C
62 lines
737 B
C
#include "gr-sim.h"
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#include "tfv_zp.h"
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#include "6502_emulate.h"
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void clear_screens(void) {
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ram[DRAW_PAGE]=0;
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clear_top();
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clear_bottom();
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ram[DRAW_PAGE]=4;
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clear_top();
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clear_bottom();
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}
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void clear_top_a(int color) {
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int i,j,max,offset;
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ram[COLOR]=color;
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offset=0x400+(ram[DRAW_PAGE]<<8);
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for(i=0;i<8;i++) {
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if (i<4) max=120; else max=80;
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for(j=0;j<max;j++) {
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ram[offset+i*0x80+j]=ram[COLOR];
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}
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}
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}
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void clear_top(void) {
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clear_top_a(0);
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}
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void clear_bottom(void) {
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int i,j,max,offset;
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offset=0x400+(ram[DRAW_PAGE]<<8);
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for(i=4;i<8;i++) {
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max=120;
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for(j=80;j<max;j++) {
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ram[offset+i*0x80+j]=0xa0; // plain space
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}
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}
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}
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void clear_screens_notext(void) {
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}
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void clear_all(void) {
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}
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