| 1 | // |
| 2 | // modelsBIOS.cpp - Models and BIOS handler |
| 3 | // |
| 4 | // by Jean-Paul Mari |
| 5 | // |
| 6 | // JPM = Jean-Paul Mari <djipi.mari@gmail.com> |
| 7 | // |
| 8 | // Who When What |
| 9 | // --- ---------- ----------------------------------------------------------- |
| 10 | // JPM 09/04/2018 Created this file |
| 11 | // |
| 12 | |
| 13 | |
| 14 | #include "string.h" |
| 15 | #include "settings.h" |
| 16 | #include "jagbios.h" |
| 17 | #include "jagbios2.h" |
| 18 | #include "jagcdbios.h" |
| 19 | #include "jagstub1bios.h" |
| 20 | #include "jagstub2bios.h" |
| 21 | #include "memory.h" |
| 22 | |
| 23 | |
| 24 | typedef struct InfosBIOS |
| 25 | { |
| 26 | void *ptrBIOS; |
| 27 | size_t sizeBIOS; |
| 28 | size_t intBIOS; |
| 29 | } |
| 30 | S_InfosBIOS; |
| 31 | |
| 32 | |
| 33 | S_InfosBIOS TabInfosBIOS[] = |
| 34 | { |
| 35 | { NULL, 0, BT_NULL }, |
| 36 | { jaguarBootROM, 0x20000, BT_K_SERIES }, |
| 37 | { jaguarBootROM2, 0x20000, BT_M_SERIES }, |
| 38 | { jaguarDevBootROM1, 0x20000, BT_STUBULATOR_1 }, |
| 39 | { jaguarDevBootROM2, 0x20000, BT_STUBULATOR_2 } |
| 40 | }; |
| 41 | |
| 42 | |
| 43 | // Select a BIOS |
| 44 | // A valid default BIOS will be selected in case of no valid BIOS has been requested |
| 45 | bool SelectBIOS(int indexbios) |
| 46 | { |
| 47 | int IndexBIOS; |
| 48 | |
| 49 | #if 1 |
| 50 | // Get the BIOS selected in the configuration tab |
| 51 | if (!indexbios) |
| 52 | { |
| 53 | indexbios = vjs.biosType; |
| 54 | } |
| 55 | #else |
| 56 | indexbios = 10; |
| 57 | #endif |
| 58 | |
| 59 | // Check if a default BIOS is required |
| 60 | if (!indexbios) |
| 61 | { |
| 62 | // Get default BIOS based on the Jaguar model |
| 63 | switch (vjs.jaguarModel) |
| 64 | { |
| 65 | case JAG_K_SERIES: |
| 66 | indexbios = BT_K_SERIES; |
| 67 | break; |
| 68 | |
| 69 | case JAG_M_SERIES: |
| 70 | indexbios = BT_M_SERIES; |
| 71 | break; |
| 72 | |
| 73 | default: |
| 74 | break; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | // look for the requested BIOS |
| 79 | IndexBIOS = (sizeof(TabInfosBIOS) / sizeof(S_InfosBIOS)); |
| 80 | while (TabInfosBIOS[--IndexBIOS].intBIOS && (TabInfosBIOS[IndexBIOS].intBIOS != indexbios)); |
| 81 | |
| 82 | // Put BIOS in memory or return if no BIOS exist (but it should never happen) |
| 83 | if (IndexBIOS) |
| 84 | { |
| 85 | memcpy(jagMemSpace + 0xE00000, TabInfosBIOS[IndexBIOS].ptrBIOS, TabInfosBIOS[IndexBIOS].sizeBIOS); |
| 86 | return true; |
| 87 | } |
| 88 | else |
| 89 | { |
| 90 | return false; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | |
| 95 | // |
| 96 | bool SetBIOS(void) |
| 97 | { |
| 98 | memcpy(jaguarMainRAM, jagMemSpace + 0xE00000, 8); |
| 99 | return true; |
| 100 | } |
| 101 | |