[hatari-devel] WinUae cycles and DSP

[LAURENT SALLAFRANQUE]

Hi,

I've tested quickly the cycles sent to the DSP like this (in m68k_run_2) :

if (r->spcflags) {
	if (do_specialties (cpu_cycles* 2 / CYCLE_UNIT))
	return;   
}
		

if (opcode == 0x4E71) /* NOP */
	fprintf (stderr, "NOP : %d cycles       DSP : %d\n", cpu_cycles, cpu_cycles* 2 / CYCLE_UNIT);
		

/* Run DSP 56k code if necessary */
if (bDspEnabled) {
	DSP_Run(cpu_cycles* 2 / CYCLE_UNIT);	
}



With this test, NOP is 1024 cycles, and "cpu_cycles* 2 / CYCLE_UNIT" = 4

I've also tested in 8 Mhz and 32 Mhz. The value doesn't change (always 4 cycles)


Regards
Laurent

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