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e5f426aa2e
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@231 be3aeb3a-fb24-0410-a615-afba39da0efa
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
// Some misc stuff
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// (c) Copyright 2007, Grazvydas "notaz" Ignotas
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#include "../PicoInt.h"
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unsigned char formatted_bram[4*0x10] =
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{
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#if 0
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0x00, 0xd4, 0x63, 0x00, 0x00, 0x03, 0x03, 0x00, 0x03, 0x03, 0x03, 0x00, 0x03, 0x00, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x53, 0xd2, 0xf5, 0x3a, 0x48, 0x50, 0x35, 0x0f,
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0x47, 0x14, 0xf5, 0x7e, 0x5c, 0xd4, 0xf3, 0x03, 0x00, 0x03, 0x12, 0x00, 0x0a, 0xff, 0xca, 0xa6,
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0xf5, 0x27, 0xed, 0x22, 0x47, 0xfa, 0x22, 0x96, 0x6c, 0xa5, 0x88, 0x14, 0x48, 0x48, 0x0a, 0xbb,
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#endif
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0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x40,
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0x00, 0x7d, 0x00, 0x7d, 0x00, 0x7d, 0x00, 0x7d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x53, 0x45, 0x47, 0x41, 0x5f, 0x43, 0x44, 0x5f, 0x52, 0x4f, 0x4d, 0x00, 0x01, 0x00, 0x00, 0x00,
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0x52, 0x41, 0x4d, 0x5f, 0x43, 0x41, 0x52, 0x54, 0x52, 0x49, 0x44, 0x47, 0x45, 0x5f, 0x5f, 0x5f,
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// SEGA_CD_ROM.....RAM_CARTRIDGE___
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};
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// offs | 2Mbit | 1Mbit |
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// 0 | [ 2M | unused |
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// 128K | bit ] | bank0 |
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// 256K | unused | bank1 |
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#ifndef _ASM_MISC_C
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PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m)
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{
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unsigned short *m1M_b0, *m1M_b1;
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unsigned int i, tmp, *m2M;
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m2M = (unsigned int *) (m + 0x40000);
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m1M_b0 = (unsigned short *) m2M;
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m1M_b1 = (unsigned short *) (m + 0x60000);
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for (i = 0x40000/4; i; i--)
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{
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tmp = *(--m2M);
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*(--m1M_b0) = tmp;
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*(--m1M_b1) = tmp >> 16;
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}
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}
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PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m)
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{
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unsigned short *m1M_b0, *m1M_b1;
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unsigned int i, tmp, *m2M;
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m2M = (unsigned int *) m;
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m1M_b0 = (unsigned short *) (m + 0x20000);
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m1M_b1 = (unsigned short *) (m + 0x40000);
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for (i = 0x40000/4; i; i--)
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{
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tmp = *m1M_b0++ | (*m1M_b1++ << 16);
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*m2M++ = tmp;
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}
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}
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#endif
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