mirror of
https://github.com/dborth/snes9xgx.git
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78 lines
1.4 KiB
C++
78 lines
1.4 KiB
C++
/****************************************************************************
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* Snes9x 1.50
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*
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* Nintendo Gamecube Audio RAM
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*
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* softdev July 2006
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****************************************************************************/
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#include <gccore.h>
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#include <string.h>
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#include "aram.h"
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#define ARAM_READ 1
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#define ARAM_WRITE 0
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#define TEMPSIZE 32768
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static char tempbuffer[TEMPSIZE] ATTRIBUTE_ALIGN (32);
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/**
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* ARAMPut
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*
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* Move data from MAIN memory to ARAM
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*/
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void
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ARAMPut (char *src, char *dst, int len)
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{
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DCFlushRange (src, len);
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AR_StartDMA (ARAM_WRITE, (u32) src, (u32) dst, len);
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while (AR_GetDMAStatus());
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}
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/**
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* ARAMFetch
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*
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* This function will move data from ARAM to MAIN memory
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*/
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void
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ARAMFetch (char *dst, char *src, int len)
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{
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DCInvalidateRange (dst, len);
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AR_StartDMA (ARAM_READ, (u32) dst, (u32) src, len);
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while (AR_GetDMAStatus ());
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}
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/**
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* ARAMFetchSlow
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*
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* Required as SNES memory may NOT be 32-byte aligned
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*/
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void
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ARAMFetchSlow (char *dst, char *src, int len)
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{
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int t;
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if (len > TEMPSIZE)
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{
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t = 0;
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while (t < len)
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{
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ARAMFetch (tempbuffer, src + t, TEMPSIZE);
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if (t + TEMPSIZE > len)
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{
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memcpy (dst + t, tempbuffer, len - t);
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}
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else
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memcpy (dst + t, tempbuffer, TEMPSIZE);
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t += TEMPSIZE;
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}
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}
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else
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{
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ARAMFetch (tempbuffer, src, len);
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memcpy (dst, tempbuffer, len);
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}
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}
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