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Add KIM-1 functions to write to the 7-segment LED display and get

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keypresses from the keypad.
Includes sample program illustrating how to use them.
Tested on real KIM-1 hardware.
This commit is contained in:
Jeff Tranter
2023-03-29 18:40:10 -04:00
parent d69117c0c1
commit 3a5fbd34da
5 changed files with 108 additions and 0 deletions
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52
samples/kim1/kimKeyDisp.c Normal file
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/* Example illustrating scandisplay() and getkey() functions. */
#include <stdio.h>
#include <kim1.h>
int main (void)
{
int i, j, k, l;
int last = 15;
printf("\nKIM-1 Demo\n");
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++) {
for (k = 0; k < 16; k++) {
scandisplay(i, j, k);
l = getkey();
if (l != last) {
switch (l) {
case 0x0: case 0x1: case 0x2: case 0x3:
case 0x4: case 0x5: case 0x6: case 0x7:
case 0x8: case 0x9: case 0xa: case 0xb:
case 0xc: case 0xd: case 0xe: case 0xf:
printf("Key pressed: %X\n", l);
break;
case 0x10:
printf("Key pressed: AD\n");
break;
case 0x11:
printf("Key pressed: DA\n");
break;
case 0x12:
printf("Key pressed: +\n");
break;
case 0x13:
printf("Key pressed: GO\n");
break;
case 0x14:
printf("Key pressed: PC\n");
break;
}
last = l;
}
}
}
}
return 0;
}