119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
#include <clib/exec_protos.h>
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#include <clib/intuition_protos.h>
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#include <clib/graphics_protos.h>
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#include <graphics/gfxbase.h>
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#include <hardware/custom.h>
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#include <hardware/dmabits.h>
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#include <exec/memory.h>
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#include <time.h>
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#include <stdio.h>
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extern struct GfxBase *GfxBase;
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extern far struct Custom custom;
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#define COPIES (100)
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int main(void) {
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// reserve two 320x200 bitplanes
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// take over the system
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// for 1000 loops
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// * run blitter copies, setting up new registers each time
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// * do CPU copies
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// give the system back
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// print the timings of each
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struct View *OldView;
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ULONG OldCopper;
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UWORD OldDMACON, OldINTENA, OldINTREQ, OldADKCON;
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unsigned int startTime[2], blitTime[2], copyTime[2];
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unsigned char *source, *target, check;
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ULONG blitTimeFinal, copyTimeFinal;
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int i, j;
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OldView = ((struct GfxBase *)GfxBase)->ActiView;
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OldCopper = (ULONG)((struct GfxBase *)GfxBase)->copinit;
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LoadView(NULL);
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WaitTOF();
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WaitTOF();
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OwnBlitter();
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WaitBlit();
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Forbid();
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OldDMACON = custom.dmaconr | 0x8000;
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OldINTENA = custom.intenar | 0x8000;
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OldINTREQ = custom.intreqr | 0x8000;
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OldADKCON = custom.adkconr | 0x8000;
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custom.dmacon = DMAF_SETCLR | DMAF_BLITTER;
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custom.dmacon = DMAF_AUDIO | DMAF_DISK | DMAF_SPRITE | DMAF_COPPER | DMAF_RASTER;
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source = AllocMem(320 * 200 / 8, MEMF_CHIP | MEMF_CLEAR);
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target = AllocMem(320 * 200 / 8, MEMF_CHIP | MEMF_CLEAR);
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*(source) = 1;
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timer(startTime);
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for (i = 0; i < COPIES; ++i) {
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// a and d
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custom.bltcon0 = (1 << 8) + (1 << 11);
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custom.bltcon1 = 0;
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custom.bltapt = source;
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custom.bltdpt = target;
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custom.bltamod = 0;
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custom.bltdmod = 0;
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custom.bltsize = (320 / 16) + (200 << 6);
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WaitBlit();
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}
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timer(blitTime);
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for (i = 0; i < COPIES; ++i) {
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for (j = 0; j < (320 * 200 / 8); ++j) {
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target[j] = source[j];
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}
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}
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timer(copyTime);
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check = *(source);
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FreeMem(source, 320 * 200 / 8);
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FreeMem(target, 320 * 200 / 8);
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custom.dmacon = 0x7FFF;
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custom.dmacon = OldDMACON;
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custom.intena = 0x7FFF;
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custom.intena = OldINTENA;
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custom.intreq = 0x7FFF;
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custom.intreq = OldINTREQ;
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custom.adkcon = 0x7FFF;
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custom.adkcon = OldADKCON;
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custom.cop1lc = OldCopper;
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LoadView(OldView);
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WaitTOF();
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WaitTOF();
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WaitBlit();
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DisownBlitter();
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Permit();
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blitTimeFinal = (blitTime[0] - startTime[0]) * 1000000 + (blitTime[1] - startTime[1]);
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copyTimeFinal = (copyTime[0] - blitTime[0]) * 1000000 + (copyTime[1] - blitTime[1]);
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printf("Number of 320x200/8 copies: %d\n", COPIES);
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printf("Blitter (microsecond): %d\n", blitTimeFinal);
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printf("CPU (microsecond): %d\n", copyTimeFinal);
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return 0;
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}
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