commit 42f951

2026-03-29 14:20:27 Bob Green: -/-

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`programming/handling interrupts.md` ..
@@ 23,11 23,10 @@
	#include <stdio.h>
	#include <machine.h>

-	#define LEDS1 0xa0
-	#define LEDS2 0x50
-
	static unsigned int ticks = 0;

+	void twiddle_thumbs(void);
+
	void ISR isr(void) {
	ticks++;

@@ 38,6 37,7 @@
	static int lednum = 2;
	static int delta = 1;

+	/* create simple visual effect with some of the leds */
	clear_led(lednum);

	lednum += delta;
@@ 60,8 60,9 @@
	_pit_set_counter(1000);
	*pit_tsr = 1;

-	set_isr_vector(ivr, isr);
+	set_isr_handler(ivr, isr);

+	/* Wait for a keypress */
	while (!_char_available()) {
	printf("%08x\r", ticks);