mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 07:17:45 -04:00
5de27868df
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@320 be3aeb3a-fb24-0410-a615-afba39da0efa
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
#include "../../PicoInt.h"
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#ifndef UTYPES_DEFINED
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typedef unsigned char u8;
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typedef unsigned short u16;
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typedef unsigned int u32;
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#define UTYPES_DEFINED
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#endif
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#define CLEAR_DETECT(pc_start,pc_end,text) \
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if (d == 0 && SekPc >= pc_start && SekPc < pc_end) \
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{ \
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if (!clearing_ram) \
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elprintf(EL_UIO, text); \
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clearing_ram = 1; \
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return; \
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}
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unsigned int PicoSVPRead16(unsigned int a, int realsize)
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{
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unsigned int d = 0;
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if ((a & 0xfe0000) == 0x300000)
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d = *(u16 *)(svp->dram + (a&0x1fffe));
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elprintf(EL_UIO, "SVP r%i: [%06x] %04x @%06x", realsize, a&0xffffff, d, SekPc);
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// if (a == 0x30fe02) d = 1;
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return d;
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}
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void PicoSVPWrite8(unsigned int a, unsigned int d, int realsize)
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{
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elprintf(EL_UIO, "!!! SVP w%i: [%06x], %08x @%06x", realsize, a&0xffffff, d, SekPc);
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}
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void PicoSVPWrite16(unsigned int a, unsigned int d, int realsize)
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{
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static int clearing_ram = 0;
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if ((a & 0xfe0000) == 0x300000)
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*(u16 *)(svp->dram + (a&0x1fffe)) = d;
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// debug: detect RAM clears..
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CLEAR_DETECT(0x0221dc, 0x0221f0, "SVP RAM CLEAR (1)");
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CLEAR_DETECT(0x02204c, 0x022068, "SVP RAM CLEAR (2)");
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CLEAR_DETECT(0x021900, 0x021ff0, "SVP RAM CLEAR 300000-305fff");
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clearing_ram = 0;
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elprintf(EL_UIO, "SVP w%i: [%06x], %04x @%06x", realsize, a&0xffffff, d, SekPc);
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// just guessing here
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if (a == 0xa15002) svp->ssp1601.gr[SSP_XST].h = d;
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else if (a == 0xa15006) svp->ssp1601.gr[SSP_PM0].h = d;
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}
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