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Altair8800.h
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Altair8800.h
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// -----------------------------------------------------------------------------
// Altair 8800 Simulator
// Copyright (C) 2017 David Hansel
// -----------------------------------------------------------------------------
#ifndef ALTAIR8800_H
#define ALTAIR8800_H
#include <Arduino.h>
#define SW_RUN 0
#define SW_STOP 1
#define SW_STEP 2
#define SW_SLOW 3
#define SW_EXAMINE 4
#define SW_EXNEXT 5
#define SW_DEPOSIT 6
#define SW_DEPNEXT 7
#define SW_RESET 8
#define SW_CLR 9
#define SW_PROTECT 10
#define SW_UNPROTECT 11
#define SW_AUX1UP 12
#define SW_AUX1DOWN 13
#define SW_AUX2UP 14
#define SW_AUX2DOWN 15
#define ST_INT 0x0001
#define ST_WO 0x0002
#define ST_STACK 0x0004
#define ST_HLTA 0x0008
#define ST_OUT 0x0010
#define ST_M1 0x0020
#define ST_INP 0x0040
#define ST_MEMR 0x0080
#define ST_PROT 0x0100
#define ST_INTE 0x0200
#define ST_HLDA 0x0400
#define ST_WAIT 0x0800
#define INT_SW_STOP 0x80000000
#define INT_SW_RESET 0x40000000
#define INT_SW_CLR 0x20000000
#define INT_SW_AUX2UP 0x10000000
#define INT_SW_AUX2DOWN 0x08000000
#define INT_SWITCH 0xff000000
#define INT_SIO 0x00000001
#define INT_ACR 0x00000002
#define INT_2SIO1 0x00000004
#define INT_2SIO2 0x00000008
#define INT_DRIVE 0x00000010
#define INT_RTC 0x00000020
#define INT_LPC 0x00000040
#define INT_VECTOR 0x00000080
#define INT_HDSK 0x00000100
#define INT_2SIO3 0x00000200
#define INT_2SIO4 0x00000400
#define INT_DEVICE 0x00ffffff
extern word status_wait;
extern word status_inte;
extern bool have_ps2;
byte altair_in(byte addr);
void altair_out(byte addr, byte val);
void altair_hlt();
void altair_interrupt(uint32_t i, bool set = true);
bool altair_interrupt_active(uint32_t i);
void altair_interrupt_enable();
void altair_interrupt_disable();
bool altair_interrupt_enabled();
bool altair_isreset();
void altair_wait_step();
void altair_set_outputs(uint16_t a, byte v);
int altair_read_intel_hex(uint16_t *start = NULL, uint16_t *end = NULL);
void altair_print_intel_hex_status(int status);
void altair_vi_register_ports();
#endif