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Implemented timer and timer interrupts. Added get/setvbr instructions. Fixed assembler bug. Moved mnemonics into a separate source file
author Michael Pavone <pavone@retrodev.com>
date Thu, 31 Mar 2016 23:25:52 -0700
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#ifndef TIMER_H_
#define TIMER_H_

typedef struct {
	uint32_t cycles;
	uint32_t clock_inc;
	
	uint16_t load;
	uint16_t current;
	uint8_t  pending;
} timer;

void timer_init(timer *context, uint32_t clock_div);
void timer_run(timer *context, uint32_t target);
uint32_t timer_next_interrupt(timer *context);
void timer_write(timer *context, uint16_t value);

#endif