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kw11.cpp
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kw11.cpp
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#include "kw11.h"
#include "avr11.h"
#include "kb11.h"
#include <iostream>
#include <signal.h>
#include <Arduino.h>
extern KB11 cpu;
void kw11alarm(int) { cpu.unibus.kw11.tick(); }
KW11::KW11() {
}
void KW11::write16(uint32_t a, uint16_t v) {
switch (a) {
case 0777546:
// Serial.printf("kw11: csr write %06o\n", v);
csr = v;
return;
default:
Serial.printf("kw11: write to invalid address %06o\n", a);
trap(INTBUS);
}
}
uint16_t KW11::read16(uint32_t a) {
uint16_t cxsr;
switch (a) {
case 0777546:
// Serial.printf("kw11: csr read %06o\n", csr);
cxsr = csr;
csr &= ~0200;
return cxsr;
default:
Serial.printf("kw11: read from invalid address %06o\n", a);
trap(INTBUS);
}
}
void KW11::tick() {
csr |= (1 << 7);
if (csr & (1 << 6)) {
cpu.interrupt(INTCLOCK, 6);
}
}