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Total rework of simulator for dev branch. Create separate thread for interrupt processes. Tick-accurate simulation of timers. Non-blocking character input for running in realtime mode. Decouple hardware sim from grbl code as much as possible. Expanded command line options. Provisions for cross-platform solution.

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ashelly
2014-07-04 11:14:54 -04:00
parent 92d6c2bca5
commit 8c9f3bca65
33 changed files with 1062 additions and 437 deletions
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71
sim/avr/interrupt.h
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@@ -24,60 +24,33 @@
#ifndef interrupt_h
#define interrupt_h
#include <inttypes.h>
// dummy register variables
extern uint16_t timsk0;
extern uint16_t timsk1;
extern uint16_t timsk2;
extern uint16_t tcnt0;
extern uint16_t tcnt2;
extern uint16_t tccr0b;
extern uint16_t tccr0a;
extern uint16_t tccr2a;
extern uint16_t tccr2b;
extern uint16_t tccr1b;
extern uint16_t tccr1a;
extern uint16_t ocr1a;
extern uint16_t ocr2a;
extern uint16_t pcmsk0;
extern uint16_t pcicr;
// macros to turn avr interrupts into regular functions
#define TIMER1_COMPA_vect
//#define TIMER1_COMPA_vect
#define ISR(a) void interrupt_ ## a ()
// enable interrupts does nothing in the simulation environment
// Stub of the timer interrupt functions we need
void interrupt_TIMER0_COMPA_vect();
void interrupt_TIMER1_COMPA_vect();
void interrupt_TIMER0_OVF_vect();
void interrupt_SERIAL_UDRE();
void interrupt_SERIAL_RX();
//pseudo-Interrupt vector table
typedef void(*isr_fp)(void);
extern isr_fp compa_vect[6];
extern isr_fp compb_vect[6];
extern isr_fp ovf_vect[6];
// enable interrupts now does something in the simulation environment
#define SEI 0x80
void sei();
void cli();
// dummy macros for interrupt related registers
#define TIMSK0 timsk0
#define TIMSK1 timsk1
#define TIMSK2 timsk2
#define OCR1A ocr1a
#define OCR2A ocr2a
#define OCIE1A 0
#define OCIE2A 0
#define TCNT0 tcnt0
#define TCNT2 tcnt2
#define TCCR0B tccr0b
#define TCCR0A tccr0a
#define TCCR1A tccr1a
#define TCCR1B tccr1b
#define TCCR2A tccr2a
#define TCCR2B tccr2b
#define CS21 0
#define CS10 0
#define WGM13 0
#define WGM12 0
#define WGM11 0
#define WGM10 0
#define WGM21 0
#define COM1A0 0
#define COM1B0 0
#define TOIE0 0
#define TOIE2 0
#define PCICR pcicr
//simulate timer operation
void timer_interrupts();
#endif