mirror of
https://github.com/86Box/86Box.git
synced 2026-02-23 01:48:21 -07:00
78a44d845b
Brought the Intel Flash emulation in line with mainline PCem; Removed the Intel Advanced/ML; Reverted the ET4000/W32p code back to the code from mainline PCem, with fixes to PCI and linear frame buffer addresses according to the datasheet; Timer counters are now 32-bit again - fixes quite a few bugs.
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
#ifndef _TIMER_H_
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#define _TIMER_H_
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#include "cpu.h"
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extern int timer_start;
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#define timer_start_period(cycles) \
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timer_start = cycles;
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#define timer_end_period(cycles) \
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do \
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{ \
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int diff = timer_start - (cycles); \
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timer_count -= diff; \
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timer_start = cycles; \
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if (timer_count <= 0) \
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{ \
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timer_process(); \
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timer_update_outstanding(); \
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} \
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} while (0)
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#define timer_clock() \
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do \
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{ \
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int diff; \
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if (AT) \
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{ \
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diff = timer_start - (cycles << TIMER_SHIFT); \
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timer_start = cycles << TIMER_SHIFT; \
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} \
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else \
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{ \
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diff = timer_start - (cycles * xt_cpu_multi); \
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timer_start = cycles * xt_cpu_multi; \
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} \
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timer_count -= diff; \
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timer_process(); \
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timer_update_outstanding(); \
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} while (0)
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void timer_process();
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void timer_update_outstanding();
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void timer_reset();
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int timer_add(void (*callback)(void *priv), int *count, int *enable, void *priv);
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void timer_set_callback(int timer, void (*callback)(void *priv));
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#define TIMER_ALWAYS_ENABLED &timer_one
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extern int timer_count;
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extern int timer_one;
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#define TIMER_SHIFT 6
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extern int TIMER_USEC;
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#endif /*_TIMER_H_*/
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