mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-28 10:59:16 -04:00
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)
79 lines
3.6 KiB
C
79 lines
3.6 KiB
C
#include "source_gpu_service_clock.h"
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#include "source_gpu_command_projection.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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typedef struct Harness {
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SourceGPUCommandProjection command;
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unsigned calls,duplicate_calls,first_phases,second_phases;
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uint64_t last;
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} Harness;
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static void service(void *context,uint64_t cycle,unsigned kind) {
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Harness *h=context; (void)kind;
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unsigned before=h->command.first_triangles+h->command.second_triangles;
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assert(source_gpu_command_update(&h->command,cycle)); ++h->calls;
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if(cycle==h->last) {
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++h->duplicate_calls;
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assert(h->command.first_triangles+h->command.second_triangles==before);
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}
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h->last=cycle;
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}
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static void report(Harness *h) {
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SourceGPUCommandProjection *s=&h->command;
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printf("%llu %u %u %u %u %u %u\n",(unsigned long long)s->last_update,
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(uint32_t)s->budget,s->phase,s->count,(unsigned)source_gpu_command_ready(s),
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s->command,s->count?s->queue[0]:0);
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}
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static void quad(Harness *h,unsigned n) {
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uint32_t words[]={0x280000ff,0,n,n<<16,n|(n<<16)};
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for(unsigned i=0;i<5;++i) assert(source_gpu_command_write(&h->command,words[i]));
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}
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int main(int argc,char **argv) {
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assert(argc==3 || argc==6);
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unsigned n=(unsigned)atoi(argv[1]),chain=(unsigned)atoi(argv[2]);
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SourceGPUServiceClock clock;source_gpu_service_cold(&clock);
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Harness h={0};source_gpu_command_cold(&h.command);
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assert(source_gpu_command_write(&h.command,0xe3000000));
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assert(source_gpu_command_write(&h.command,0xe407ffff));report(&h);
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/* Ordinary authored DMA register writes, independently observed before
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* the start. These are inputs, not inferred from the model's deadlines. */
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uint64_t writes[]={98,108,120,121};
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for(unsigned i=0;i<4;++i) {
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assert(source_gpu_service_dma_write(&clock,writes[i],service,&h));report(&h);
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}
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assert(source_gpu_service_to(&clock,128,service,&h));report(&h);
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assert(h.duplicate_calls==1); /* Own GPU event + periodic DMA at 128. */
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assert(source_gpu_service_dma_write(&clock,146,service,&h));quad(&h,n);
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unsigned pending=chain;
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if(pending && source_gpu_command_ready(&h.command)) {
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for(unsigned i=0;i<6;++i) assert(source_gpu_command_write(&h.command,0));
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pending=0;
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}
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report(&h);
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uint64_t ends[2]={0,0},limit=13171;unsigned frame=0;
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if(argc==6) {ends[0]=strtoull(argv[3],0,10);ends[1]=strtoull(argv[4],0,10);limit=ends[1];}
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while(source_gpu_service_next(&clock)<=limit || (argc==6 && frame<2)) {
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uint64_t next=source_gpu_service_next(&clock);
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int boundary=argc==6 && frame<2 && ends[frame]<=next;
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if(boundary) next=ends[frame];
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assert(source_gpu_service_to(&clock,next,service,&h));
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if(boundary) {
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if(atoi(argv[5])) assert(source_gpu_service_frame_end(&clock,next,service,&h));
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++frame;
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}
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if(pending && next%128==0 && source_gpu_command_ready(&h.command)) {
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for(unsigned i=0;i<6;++i) assert(source_gpu_command_write(&h.command,0));
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pending=0;
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}
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report(&h);
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}
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assert(!pending && h.command.first_triangles==1 && h.command.second_triangles==1);
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assert(h.duplicate_calls>1);
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/* Explicit repeated caller at an existing deadline is not another phase. */
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unsigned phases=h.command.first_triangles+h.command.second_triangles;
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assert(source_gpu_service_dma_write(&clock,clock.cycle,service,&h));
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assert(h.command.first_triangles+h.command.second_triangles==phases);
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assert(!source_gpu_service_to(&clock,clock.cycle-1,service,&h));
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return 0;
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}
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