Apple-1-Tools/apple1-videocard-lib
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add blank+external input demo option

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This commit is contained in:
nino-porcino 2021-12-05 16:22:27 +01:00
parent f1bee06172
commit 9bc57a6dd2
1 changed files with 38 additions and 0 deletions
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38
test.c
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@ -626,6 +626,42 @@ void prova_interrupt() {
install_interrupt();
}
byte external_input = 0;
void prova_external_input() {
external_input ^= 1;
if(external_input == 1) {
woz_puts("EXT INPUT ON\r");
}
else {
woz_puts("EXT INPUT OFF\r");
}
// fill color table with $F0
set_vram_write_addr(SCREEN1_COLOR_TABLE);
for(byte i=32;i!=0;i--) {
TMS_WRITE_DATA_PORT(0xA0); // yellow on transparent
}
write_reg(0, 0x00 | external_input); // write "external video input" bit
set_color(0); // transparent color
}
byte blank = 0;
void prova_blank() {
blank ^= 64;
if(blank == 64) {
woz_puts("NORMAL\r");
}
else {
woz_puts("BLANK\r");
}
write_reg(1, 0x80 | blank); // write "blank" bit
}
void main() {
//word pippo = mul8(3,2);
@ -636,6 +672,8 @@ void main() {
else if(key == '2') prova_screen2();
else if(key == '3') prova_screen3();
else if(key == '4') prova_interrupt();
else if(key == 'E') prova_external_input();
else if(key == 'B') prova_blank();
else if(key == '0') break;
else woz_putc(key);