mirror of
https://github.com/RetroPortingToolKit/psxrecomp
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Pegasus
3bd62b3099
Rebased onto upstream after #362: the Ape Escape card-repair hunks are
dropped with the removed block, and the pace walk keeps upstream's uncapped
deadline consumption plus the source ACK-pulse edge.
(cherry picked from commit 8235a7700f)
47 lines
2.6 KiB
C
47 lines
2.6 KiB
C
#include "timers.h"
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#include "input_route_raster_clock.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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void psx_irq_raise(int source,unsigned detail) { (void)source;(void)detail; assert(0); }
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void event_ring_record_aux(int kind,unsigned char source,unsigned aux) { (void)kind;(void)source;(void)aux; }
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static uint64_t now;
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static void advance(InputRouteRasterClock *r,uint64_t to) {
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assert(to>=now && to-now<=UINT32_MAX);
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input_route_raster_advance_observed(r,(uint32_t)(to-now),timers_source_raster_event,NULL);
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timers_source_raster_finish(to);now=to;
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}
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int main(int argc,char **argv) {
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assert(argc==2);timers_init();
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if(!strcmp(argv[1],"default")) {
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assert(!timers_source_raster_enabled());
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timers_write(0x1f801114,0x148);timers_advance(2145);assert(timers_read(0x1f801110)==0);
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timers_advance(1);assert(timers_read(0x1f801110)==1);puts("default2146 PASS");return 0;
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}
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assert(timers_source_raster_enabled());
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if(!strcmp(argv[1],"irq")) {timers_write(0x1f801114,0x158);return 9;}
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if(!strcmp(argv[1],"restore")) {uint16_t a[3]={0};uint32_t b[3]={0};int32_t c[3]={0};timers_set_snapshot(a,b,a,c,b);return 9;}
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InputRouteRasterClock r;input_route_raster_reset(&r);
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/* Independent exact-source scalar checkpoint and observed reads. No RAM,
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* executable, game input or reference implementation text in this test. */
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r.cycle=now=621642115;r.remaining=3203;r.phase=0;r.alternate=1;
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r.fraction=34184;r.scanline=256;r.lines=263;r.mode=100;r.blank=1;r.field=0;
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timers_source_raster_finish(now);
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timers_write(0x1f801118,65535);timers_write(0x1f801114,0x148);timers_write(0x1f801110,249);
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advance(&r,622400946);assert(timers_read(0x1f801110)==601);
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advance(&r,622400989);assert(timers_read(0x1f801110)==601);
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/* Repeated reads cannot advance or clear count; IRQ mode rejection above
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* does not silently inherit native IRQ behavior. */
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assert(timers_read(0x1f801110)==601);
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uint16_t counters[3],targets[3];uint32_t modes[3],fractions[3];int32_t irqs[3];
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timers_get_snapshot(counters,modes,targets,irqs,fractions);
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assert(counters[1]==601 && (modes[1]&1023)==0x148 && targets[1]==65535);
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/* At the next H edge a write at the same timestamp follows that edge. */
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uint64_t edge=now+((uint64_t)r.remaining*65536-r.fraction+103895)/103896;
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assert(r.phase==0);advance(&r,edge);assert(timers_read(0x1f801110)==602);
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timers_write(0x1f801110,7);assert(timers_read(0x1f801110)==7);
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advance(&r,edge);assert(timers_read(0x1f801110)==7);
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puts("source timer1 production raster/read/write ordering PASS");
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}
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