| 1 | /* |
| 2 | * PicoDrive |
| 3 | * (C) notaz, 2007 |
| 4 | * |
| 5 | * This work is licensed under the terms of MAME license. |
| 6 | * See COPYING file in the top-level directory. |
| 7 | */ |
| 8 | |
| 9 | #include "../pico_int.h" |
| 10 | |
| 11 | unsigned char formatted_bram[4*0x10] = |
| 12 | { |
| 13 | #if 0 |
| 14 | 0x00, 0xd4, 0x63, 0x00, 0x00, 0x03, 0x03, 0x00, 0x03, 0x03, 0x03, 0x00, 0x03, 0x00, 0x00, 0x03, |
| 15 | 0x00, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x53, 0xd2, 0xf5, 0x3a, 0x48, 0x50, 0x35, 0x0f, |
| 16 | 0x47, 0x14, 0xf5, 0x7e, 0x5c, 0xd4, 0xf3, 0x03, 0x00, 0x03, 0x12, 0x00, 0x0a, 0xff, 0xca, 0xa6, |
| 17 | 0xf5, 0x27, 0xed, 0x22, 0x47, 0xfa, 0x22, 0x96, 0x6c, 0xa5, 0x88, 0x14, 0x48, 0x48, 0x0a, 0xbb, |
| 18 | #endif |
| 19 | 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x40, |
| 20 | 0x00, 0x7d, 0x00, 0x7d, 0x00, 0x7d, 0x00, 0x7d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 21 | 0x53, 0x45, 0x47, 0x41, 0x5f, 0x43, 0x44, 0x5f, 0x52, 0x4f, 0x4d, 0x00, 0x01, 0x00, 0x00, 0x00, |
| 22 | 0x52, 0x41, 0x4d, 0x5f, 0x43, 0x41, 0x52, 0x54, 0x52, 0x49, 0x44, 0x47, 0x45, 0x5f, 0x5f, 0x5f, |
| 23 | // SEGA_CD_ROM.....RAM_CARTRIDGE___ |
| 24 | }; |
| 25 | |
| 26 | |
| 27 | // offs | 2Mbit | 1Mbit | |
| 28 | // 0 | [ 2M | unused | |
| 29 | // 128K | bit ] | bank0 | |
| 30 | // 256K | unused | bank1 | |
| 31 | |
| 32 | #ifndef _ASM_MISC_C |
| 33 | PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m) |
| 34 | { |
| 35 | unsigned short *m1M_b0, *m1M_b1; |
| 36 | unsigned int i, tmp, *m2M; |
| 37 | |
| 38 | m2M = (unsigned int *) (m + 0x40000); |
| 39 | m1M_b0 = (unsigned short *) m2M; |
| 40 | m1M_b1 = (unsigned short *) (m + 0x60000); |
| 41 | |
| 42 | for (i = 0x40000/4; i; i--) |
| 43 | { |
| 44 | tmp = *(--m2M); |
| 45 | *(--m1M_b0) = tmp; |
| 46 | *(--m1M_b1) = tmp >> 16; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m) |
| 51 | { |
| 52 | unsigned short *m1M_b0, *m1M_b1; |
| 53 | unsigned int i, tmp, *m2M; |
| 54 | |
| 55 | m2M = (unsigned int *) m; |
| 56 | m1M_b0 = (unsigned short *) (m + 0x20000); |
| 57 | m1M_b1 = (unsigned short *) (m + 0x40000); |
| 58 | |
| 59 | for (i = 0x40000/4; i; i--) |
| 60 | { |
| 61 | tmp = *m1M_b0++ | (*m1M_b1++ << 16); |
| 62 | *m2M++ = tmp; |
| 63 | } |
| 64 | } |
| 65 | #endif |
| 66 | |