ref: d311c8e87038a48dc4162df0e2821c04dc0f6fa3
dir: /src/ROMEMDEV.c/
/* ROMEMDEV.c Copyright (C) 2007 Philip Cummins, Paul C. Pratt You can redistribute this file and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. You should have received a copy of the license along with this file; see the file COPYING. This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details. */ /* Read Only Memory EMulated DEVice Checks the header of the loaded ROM image, and then patches the ROM image. This code descended from "ROM.c" in vMac by Philip Cummins. Support for "Twiggy" Mac by Mathew Hybler. */ #ifndef AllFiles #include "SYSDEPNS.h" #include "MYOSGLUE.h" #include "ENDIANAC.h" #include "EMCONFIG.h" #include "GLOBGLUE.h" #endif #include "ROMEMDEV.h" #define UseSonyPatch \ ((CurEmMd <= kEmMd_Classic) || (CurEmMd == kEmMd_II) \ || (CurEmMd == kEmMd_IIx)) #ifndef UseLargeScreenHack #define UseLargeScreenHack 0 #endif #if UseSonyPatch LOCALVAR const ui3b sony_driver[] = { /* Replacement for .Sony driver 68k machine code, compiled from mydriver.a */ 0x4F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x00, 0x18, 0x00, 0x24, 0x00, 0x4A, 0x00, 0x8A, 0x05, 0x2E, 0x53, 0x6F, 0x6E, 0x79, 0x48, 0xE7, 0x00, 0xC0, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x01, 0x60, 0x30, 0x48, 0xE7, 0x00, 0xC0, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x02, 0x41, 0xFA, 0x01, 0x84, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x30, 0x1F, 0x4C, 0xDF, 0x03, 0x00, 0x0C, 0x68, 0x00, 0x01, 0x00, 0x1A, 0x66, 0x1E, 0x4E, 0x75, 0x48, 0xE7, 0x00, 0xC0, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x03, 0x41, 0xFA, 0x01, 0x5E, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x30, 0x1F, 0x4C, 0xDF, 0x03, 0x00, 0x32, 0x28, 0x00, 0x06, 0x08, 0x01, 0x00, 0x09, 0x67, 0x0C, 0x4A, 0x40, 0x6F, 0x02, 0x42, 0x40, 0x31, 0x40, 0x00, 0x10, 0x4E, 0x75, 0x4A, 0x40, 0x6F, 0x04, 0x42, 0x40, 0x4E, 0x75, 0x2F, 0x38, 0x08, 0xFC, 0x4E, 0x75, 0x48, 0xE7, 0x00, 0xC0, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x04, 0x41, 0xFA, 0x01, 0x1E, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x30, 0x1F, 0x4C, 0xDF, 0x03, 0x00, 0x4E, 0x75, 0x48, 0xE7, 0xE0, 0xC0, 0x20, 0x2F, 0x00, 0x14, 0x59, 0x4F, 0x2F, 0x00, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x08, 0x41, 0xFA, 0x00, 0xF8, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x32, 0x1F, 0x58, 0x4F, 0x20, 0x1F, 0x4A, 0x41, 0x66, 0x06, 0x30, 0x7C, 0x00, 0x07, 0xA0, 0x2F, 0x4C, 0xDF, 0x03, 0x07, 0x58, 0x4F, 0x4E, 0x73, 0x21, 0x40, 0x00, 0x06, 0x43, 0xF8, 0x03, 0x08, 0x4E, 0xF9, 0x00, 0x40, 0x0B, 0x20, 0x4E, 0x75, 0x48, 0xE7, 0x1F, 0x10, 0x48, 0xE7, 0x00, 0xC0, 0x5D, 0x4F, 0x3F, 0x3C, 0x00, 0x05, 0x41, 0xFA, 0x00, 0xB6, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x30, 0x1F, 0x2E, 0x1F, 0x0C, 0x40, 0xFF, 0xCF, 0x66, 0x06, 0x42, 0x40, 0x60, 0x00, 0x00, 0x8E, 0x4A, 0x40, 0x66, 0x00, 0x00, 0x88, 0x20, 0x07, 0xA7, 0x1E, 0x26, 0x48, 0x20, 0x0B, 0x67, 0x00, 0x00, 0x86, 0x9E, 0xFC, 0x00, 0x10, 0x2F, 0x0B, 0x2F, 0x07, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x06, 0x41, 0xFA, 0x00, 0x7A, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x30, 0x1F, 0x50, 0x4F, 0x2E, 0x1F, 0x76, 0x00, 0x36, 0x1F, 0x38, 0x1F, 0x3C, 0x1F, 0x3A, 0x1F, 0x26, 0x5F, 0x4A, 0x40, 0x66, 0x4A, 0x20, 0x0B, 0x67, 0x0E, 0x41, 0xFA, 0xFF, 0x8C, 0x27, 0x48, 0x00, 0x06, 0x20, 0x4B, 0xA0, 0x58, 0x60, 0x1A, 0x41, 0xFA, 0xFF, 0x70, 0x30, 0x3C, 0xA0, 0x4E, 0xA0, 0x47, 0x60, 0x0E, 0x20, 0x47, 0x30, 0x06, 0x48, 0x40, 0x30, 0x05, 0xA0, 0x4E, 0xDE, 0x83, 0x52, 0x46, 0x51, 0xCC, 0xFF, 0xF0, 0x48, 0x7A, 0xFF, 0x1C, 0x55, 0x4F, 0x3F, 0x3C, 0x00, 0x07, 0x41, 0xFA, 0x00, 0x1E, 0x2F, 0x18, 0x20, 0x50, 0x20, 0x8F, 0x5C, 0x4F, 0x30, 0x1F, 0x58, 0x4F, 0x4C, 0xDF, 0x03, 0x00, 0x4C, 0xDF, 0x08, 0xF8, 0x4E, 0x75, 0x30, 0x3C, 0xFF, 0xFF, 0x60, 0xF0 }; #endif #if UseSonyPatch LOCALVAR const ui3b my_disk_icon[] = { 0x7F, 0xFF, 0xFF, 0xF0, 0x81, 0x00, 0x01, 0x08, 0x81, 0x00, 0x71, 0x04, 0x81, 0x00, 0x89, 0x02, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xFF, 0xFE, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x83, 0xFF, 0xFF, 0xC1, 0x84, 0x00, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x84, 0x06, 0x30, 0x21, 0x84, 0x06, 0x60, 0x21, 0x84, 0x06, 0xC0, 0x21, 0x84, 0x07, 0x80, 0x21, 0x84, 0x07, 0x00, 0x21, 0x84, 0x06, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x84, 0x00, 0x00, 0x21, 0x7F, 0xFF, 0xFF, 0xFE, /* mask */ 0x3F, 0xFF, 0xFF, 0xF0, 0x7F, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xFC, 0xFF, 0xFF, 0xFF, 0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFC, 0x3F, 0xFF, 0xFF, 0xFC, /* empty pascal string */ 0x00, 0x00, }; #endif #if CurEmMd <= kEmMd_Twig43 #define Sony_DriverBase 0x1836 #elif CurEmMd <= kEmMd_Twiggy #define Sony_DriverBase 0x16E4 #elif CurEmMd <= kEmMd_128K #define Sony_DriverBase 0x1690 #elif CurEmMd <= kEmMd_Plus #define Sony_DriverBase 0x17D30 #elif CurEmMd <= kEmMd_Classic #define Sony_DriverBase 0x34680 #elif (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) #define Sony_DriverBase 0x2D72C #endif #define kVidMem_Base 0x00540000 #if UseSonyPatch LOCALPROC Sony_Install(void) { ui3p pto = Sony_DriverBase + ROM; MyMoveBytes((anyp)sony_driver, (anyp)pto, sizeof(sony_driver)); #if CurEmMd <= kEmMd_Twiggy do_put_mem_long(pto + 0x14, 0x4469736B); /* 'Disk' instead of 'Sony' */ #if CurEmMd <= kEmMd_Twig43 do_put_mem_word(pto + 0xEA, 0x0C8A); #else do_put_mem_word(pto + 0xEA, 0x0B74); #endif #endif pto += sizeof(sony_driver); do_put_mem_word(pto, kcom_callcheck); pto += 2; do_put_mem_word(pto, kExtnSony); pto += 2; do_put_mem_long(pto, kExtn_Block_Base); /* pokeaddr */ pto += 4; my_disk_icon_addr = (pto - ROM) + kROM_Base; MyMoveBytes((anyp)my_disk_icon, (anyp)pto, sizeof(my_disk_icon)); pto += sizeof(my_disk_icon); #if UseLargeScreenHack { ui3p patchp = pto; #include "SCRNHACK.h" } #endif (void) pto; /* avoid warning about unused */ } #endif #ifndef DisableRomCheck #define DisableRomCheck 1 #endif #ifndef DisableRamTest #define DisableRamTest 1 #endif #ifdef CurAltHappyMac #include "HPMCHACK.h" #endif #ifdef ln2mtb LOCALPROC ROMscrambleForMTB(void) { si5r j; ui3p p = ROM; ui3p p2 = ROM + (1 << ln2mtb); for (j = kROM_Size / (1 << ln2mtb) / 2; --j >= 0; ) { si5r i; for (i = (1 << ln2mtb); --i >= 0; ) { ui3b t0 = *p; ui3b t1 = *p2; *p++ = t1; *p2++ = t0; } p += (1 << ln2mtb); p2 += (1 << ln2mtb); } } #endif GLOBALFUNC blnr ROM_Init(void) { #if DisableRomCheck /* skip the rom checksum */ #if CurEmMd <= kEmMd_Twig43 /* no checksum code */ #elif CurEmMd <= kEmMd_Twiggy do_put_mem_word(0x136 + ROM, 0x6004); #elif CurEmMd <= kEmMd_128K do_put_mem_word(0xE2 + ROM, 0x6004); #elif CurEmMd <= kEmMd_Plus do_put_mem_word(0xD7A + ROM, 0x6022); #elif CurEmMd <= kEmMd_Classic do_put_mem_word(0x1C68 + ROM, 0x6008); #elif (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) do_put_mem_word(0x2AB0 + ROM, 0x6008); #endif #endif /* DisableRomCheck */ #if DisableRamTest #if CurEmMd <= kEmMd_128K #elif CurEmMd <= kEmMd_Plus do_put_mem_word(3752 + ROM, 0x4E71); /* shorten the ram check read */ do_put_mem_word(3728 + ROM, 0x4E71); /* shorten the ram check write */ #elif CurEmMd <= kEmMd_Classic do_put_mem_word(134 + ROM, 0x6002); do_put_mem_word(286 + ROM, 0x6002); #elif (CurEmMd == kEmMd_II) || (CurEmMd == kEmMd_IIx) do_put_mem_word(0xEE + ROM, 0x6002); do_put_mem_word(0x1AA + ROM, 0x6002); #endif #endif /* DisableRamTest */ #ifdef CurAltHappyMac PatchHappyMac(); #endif /* do_put_mem_word(862 + ROM, 0x4E71); */ /* shorten set memory */ #if UseSonyPatch Sony_Install(); #endif #ifdef ln2mtb ROMscrambleForMTB(); #endif return trueblnr; }