a7d006b637
The new code is based on timestamps, rather than delays. This eliminates the need to update every timer in timer_process(), which cost a non-trivial amount of CPU time on low-end machines. This involved changes to every user of the timer code, so this change almost certainly introduces bugs.
38 lines
800 B
C
38 lines
800 B
C
#include "timer.h"
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typedef struct ad1848_t
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{
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int index;
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uint8_t regs[16];
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uint8_t status;
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int trd;
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int mce;
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int count;
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int16_t out_l, out_r;
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int enable;
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int irq, dma;
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int freq;
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pc_timer_t timer;
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uint64_t timer_latch;
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int16_t buffer[MAXSOUNDBUFLEN * 2];
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int pos;
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} ad1848_t;
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void ad1848_setirq(ad1848_t *ad1848, int irq);
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void ad1848_setdma(ad1848_t *ad1848, int dma);
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uint8_t ad1848_read(uint16_t addr, void *p);
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void ad1848_write(uint16_t addr, uint8_t val, void *p);
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void ad1848_update(ad1848_t *ad1848);
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void ad1848_speed_changed(ad1848_t *ad1848);
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void ad1848_init(ad1848_t *ad1848);
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