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1.1 root 1: /*
1.1.1.6 root 2: Hatari - tos.c
1.1 root 3:
1.1.1.6 root 4: This file is distributed under the GNU Public License, version 2 or at
5: your option any later version. Read the file gpl.txt for details.
1.1 root 6:
1.1.1.6 root 7: Load TOS image file into ST memory, fix/setup for emulator.
8:
9: The Atari ST TOS needs to be patched to help with emulation. Eg, it references
10: the MMU chip to set memory size. This is patched to the sizes we need without
11: the complicated emulation of hardware which is not needed (as yet). We also
12: patch DMA devices and Hard Drives.
13: NOTE: TOS versions 1.06 and 1.62 were not designed for use on a real STfm.
14: These were for the STe machine ONLY. They access the DMA/Microwire addresses
15: on boot-up which (correctly) cause a bus-error on Hatari as they would in a
16: real STfm. If a user tries to select any of these images we bring up an error.
1.1 root 17: */
1.1.1.10! root 18: char TOS_rcsid[] = "Hatari $Id: tos.c,v 1.29 2005/06/05 14:19:39 thothy Exp $";
1.1 root 19:
1.1.1.8 root 20: #include <SDL_endian.h>
1.1.1.4 root 21:
1.1 root 22: #include "main.h"
1.1.1.9 root 23: #include "configuration.h"
1.1 root 24: #include "file.h"
25: #include "floppy.h"
1.1.1.4 root 26: #include "gemdos.h"
27: #include "hdc.h"
1.1.1.10! root 28: #include "ioMem.h"
! 29: #include "log.h"
1.1 root 30: #include "m68000.h"
31: #include "memorySnapShot.h"
32: #include "stMemory.h"
33: #include "tos.h"
34: #include "vdi.h"
35:
36:
1.1.1.10! root 37: Uint16 TosVersion; /* eg, 0x0100, 0x0102 */
! 38: Uint32 TosAddress, TosSize; /* Address in ST memory and size of TOS image */
! 39: BOOL bTosImageLoaded = FALSE; /* Successfully loaded a TOS image? */
! 40: BOOL bRamTosImage; /* TRUE if we loaded a RAM TOS image */
! 41: unsigned int ConnectedDriveMask = 0x03; /* Bit mask of connected drives, eg 0x7 is A,B,C */
! 42:
! 43:
! 44: /* Settings for different memory sizes */
! 45: static const MEMORY_INFO MemoryInfo[] =
1.1.1.6 root 46: {
47: { 0x80000, 0x01, 0x00080000 }, /* MEMORYSIZE_512 */
48: { 0x100000, 0x05, 0x00100000 }, /* MEMORYSIZE_1024 */
49: { 0x200000, 0x02, 0x00200000 }, /* MEMORYSIZE_2MB */
50: { 0x400000, 0x0A, 0x00400000 } /* MEMORYSIZE_4MB */
1.1 root 51: };
52:
1.1.1.4 root 53: /* Bit masks of connected drives(we support up to C,D,E,F,G,H) */
1.1.1.10! root 54: static const unsigned int ConnectedDriveMaskList[] =
1.1.1.6 root 55: {
1.1 root 56: 0x03, /* DRIVELIST_NONE A,B */
57: 0x07, /* DRIVELIST_C A,B,C */
58: 0x0F, /* DRIVELIST_CD A,B,C,D */
59: 0x1F, /* DRIVELIST_CDE A,B,C,D,E */
60: 0x3F, /* DRIVELIST_CDEF A,B,C,D,E,F */
1.1.1.4 root 61: 0x7F, /* DRIVELIST_CDEFG A,B,C,D,E,F,G */
62: 0xFF, /* DRIVELIST_CDEFGH A,B,C,D,E,F,G,H */
1.1 root 63: };
64:
65: /* Possible TOS file extensions to scan for */
1.1.1.10! root 66: static const char *pszTosNameExts[] =
1.1.1.6 root 67: {
1.1 root 68: ".img",
69: ".rom",
70: ".tos",
71: NULL
72: };
73:
74:
1.1.1.6 root 75: /* Flags that define if a TOS patch should be applied */
76: enum
1.1 root 77: {
1.1.1.6 root 78: TP_ALWAYS, /* Patch should alway be applied */
79: TP_HD_ON, /* Apply patch only if HD emulation is on */
80: TP_HD_OFF /* Apply patch only if HD emulation is off */
81: };
1.1.1.3 root 82:
1.1.1.6 root 83: /* This structure is used for patching the TOS ROMs */
1.1.1.7 root 84: typedef struct
1.1 root 85: {
1.1.1.6 root 86: Uint16 Version; /* TOS version number */
87: Sint16 Country; /* TOS country code: -1 if it does not matter, 0=US, 1=Germany, 2=France, etc. */
1.1.1.10! root 88: const char *pszName; /* Name of the patch */
1.1.1.7 root 89: int Flags; /* When should the patch be applied? (see enum above) */
1.1.1.6 root 90: Uint32 Address; /* Where the patch should be applied */
91: Uint32 OldData; /* Expected first 4 old bytes */
92: Uint32 Size; /* Length of the patch */
1.1.1.10! root 93: const void *pNewData; /* Pointer to the new bytes */
1.1.1.6 root 94: } TOS_PATCH;
95:
1.1.1.10! root 96: static const char pszDmaBoot[] = "boot from DMA bus";
! 97: static const char pszMouse[] = "working mouse in big screen resolutions";
! 98: static const char pszRomCheck[] = "ROM checksum";
! 99: static const char pszNoSteHw[] = "disable STE hardware access";
1.1.1.6 root 100:
1.1.1.9 root 101: //static Uint8 pRtsOpcode[] = { 0x4E, 0x75 }; /* 0x4E75 = RTS */
1.1.1.10! root 102: static const Uint8 pNopOpcodes[] = { 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71,
1.1.1.6 root 103: 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71,
104: 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71, 0x4E, 0x71 }; /* 0x4E71 = NOP */
1.1.1.10! root 105: static const Uint8 pMouseOpcode[] = { 0xD3, 0xC1 }; /* "ADDA.L D1,A1" (instead of "ADDA.W D1,A1") */
! 106: static const Uint8 pRomCheckOpcode[] = { 0x60, 0x00, 0x00, 0x98 }; /* BRA $e00894 */
! 107: static const Uint8 pBraOpcode[] = { 0x60 }; /* 0x60XX = BRA */
1.1 root 108:
1.1.1.6 root 109: /* The patches for the TOS: */
1.1.1.10! root 110: static const TOS_PATCH TosPatches[] =
1.1.1.6 root 111: {
112: { 0x100, -1, pszDmaBoot, TP_HD_OFF, 0xFC03D6, 0x610000D0, 4, pNopOpcodes }, /* BSR $FC04A8 */
113:
114: { 0x102, -1, pszDmaBoot, TP_HD_OFF, 0xFC0472, 0x610000E4, 4, pNopOpcodes }, /* BSR.W $FC0558 */
115: { 0x102, 0, pszMouse, TP_ALWAYS, 0xFD0030, 0xD2C147F9, 2, pMouseOpcode },
116: { 0x102, 1, pszMouse, TP_ALWAYS, 0xFD008A, 0xD2C147F9, 2, pMouseOpcode },
117: { 0x102, 2, pszMouse, TP_ALWAYS, 0xFD00A8, 0xD2C147F9, 2, pMouseOpcode },
118: { 0x102, 3, pszMouse, TP_ALWAYS, 0xFD0030, 0xD2C147F9, 2, pMouseOpcode },
119: { 0x102, 6, pszMouse, TP_ALWAYS, 0xFCFEF0, 0xD2C147F9, 2, pMouseOpcode },
120: { 0x102, 8, pszMouse, TP_ALWAYS, 0xFCFEFE, 0xD2C147F9, 2, pMouseOpcode },
121:
122: { 0x104, -1, pszDmaBoot, TP_HD_OFF, 0xFC0466, 0x610000E4, 4, pNopOpcodes }, /* BSR.W $FC054C */
123:
1.1.1.10! root 124: { 0x106, -1, pszDmaBoot, TP_HD_OFF, 0xE00576, 0x610000E4, 4, pNopOpcodes }, /* BSR.W $E0065C */
! 125:
! 126: { 0x162, -1, pszDmaBoot, TP_HD_OFF, 0xE00576, 0x610000E4, 4, pNopOpcodes }, /* BSR.W $E0065C */
! 127:
1.1.1.6 root 128: { 0x205, -1, pszDmaBoot, TP_HD_OFF, 0xE006AE, 0x610000E4, 4, pNopOpcodes }, /* BSR.W $E00794 */
129: /* An unpatched TOS 2.05 only works on STEs, so apply some anti-STE patches... */
130: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00096, 0x42788900, 4, pNopOpcodes }, /* CLR.W $FFFF8900 */
131: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE0009E, 0x31D88924, 4, pNopOpcodes }, /* MOVE.W (A0)+,$FFFF8924 */
132: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE000A6, 0x09D10AA9, 28, pNopOpcodes },
133: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE003A0, 0x30389200, 4, pNopOpcodes }, /* MOVE.W $ffff9200,D0 */
134: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE004EA, 0x61000CBC, 4, pNopOpcodes },
135: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00508, 0x61000C9E, 4, pNopOpcodes },
136: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE007A0, 0x631E2F3C, 1, pBraOpcode },
137: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00928, 0x10388901, 4, pNopOpcodes }, /* MOVE.B $FFFF8901,D0 */
138: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00944, 0xB0388901, 4, pNopOpcodes }, /* CMP.B $FFFF8901,D0 */
139: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00950, 0x67024601, 1, pBraOpcode },
140: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00968, 0x61000722, 4, pNopOpcodes },
141: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00CF2, 0x1038820D, 4, pNopOpcodes }, /* MOVE.B $FFFF820D,D0 */
142: { 0x205, -1, pszNoSteHw, TP_ALWAYS, 0xE00E00, 0x1038820D, 4, pNopOpcodes }, /* MOVE.B $FFFF820D,D0 */
143: { 0x205, 0, pszNoSteHw, TP_ALWAYS, 0xE03038, 0x31C0860E, 4, pNopOpcodes },
144: { 0x205, 0, pszNoSteHw, TP_ALWAYS, 0xE034A8, 0x31C0860E, 4, pNopOpcodes },
145: { 0x205, 0, pszNoSteHw, TP_ALWAYS, 0xE034F6, 0x31E90002, 6, pNopOpcodes },
146:
147: /* E007FA MOVE.L #$1FFFE,D7 Run checksums on 2xROMs (skip) */
148: /* Checksum is total of TOS ROM image, but get incorrect results */
149: /* as we've changed bytes in the ROM! So, just skip anyway! */
150: { 0x206, -1, pszRomCheck, TP_ALWAYS, 0xE007FA, 0x2E3C0001, 4, pRomCheckOpcode },
151: { 0x206, -1, pszDmaBoot, TP_HD_OFF, 0xE00898, 0x610000E0, 4, pNopOpcodes }, /* BSR.W $E0097A */
1.1 root 152:
1.1.1.6 root 153: { 0, 0, NULL, 0, 0, 0, 0, NULL }
154: };
1.1 root 155:
156:
157:
1.1.1.6 root 158: /*-----------------------------------------------------------------------*/
159: /*
160: Save/Restore snapshot of local variables ('MemorySnapShot_Store' handles type)
161: */
162: void TOS_MemorySnapShot_Capture(BOOL bSave)
163: {
164: /* Save/Restore details */
165: MemorySnapShot_Store(&TosVersion, sizeof(TosVersion));
166: MemorySnapShot_Store(&TosAddress, sizeof(TosAddress));
167: MemorySnapShot_Store(&TosSize, sizeof(TosSize));
168: MemorySnapShot_Store(&ConnectedDriveMask, sizeof(ConnectedDriveMask));
1.1 root 169: }
170:
1.1.1.3 root 171:
172: /*-----------------------------------------------------------------------*/
1.1 root 173: /*
1.1.1.4 root 174: Patch TOS to skip some TOS setup code which we don't support/need.
1.1 root 175:
176: So, how do we find these addresses when we have no commented source code?
1.1.1.10! root 177: - For the "Boot from DMA bus" patch:
! 178: Scan at start of rom for tst.w $482, boot call will be just above it.
1.1 root 179: */
1.1.1.6 root 180: static void TOS_FixRom(void)
1.1 root 181: {
1.1.1.6 root 182: int nGoodPatches, nBadPatches;
183: short TosCountry;
184: BOOL bHdIsOn;
1.1.1.10! root 185: const TOS_PATCH *pPatch;
1.1 root 186:
1.1.1.6 root 187: /* Check for EmuTOS first since we can not patch it */
188: if(STMemory_ReadLong(TosAddress+0x2c) == 0x45544F53) /* 0x45544F53 = 'ETOS' */
189: {
1.1.1.10! root 190: Log_Printf(LOG_DEBUG, "Detected EmuTOS, skipping TOS patches.\n");
1.1.1.6 root 191: return;
192: }
1.1 root 193:
1.1.1.7 root 194: /* We also can't patch RAM TOS images (yet) */
195: if(bRamTosImage)
196: {
1.1.1.10! root 197: Log_Printf(LOG_DEBUG, "Detected RAM TOS image, skipping TOS patches.\n");
1.1.1.7 root 198: return;
199: }
200:
1.1.1.6 root 201: nGoodPatches = nBadPatches = 0;
202: TosCountry = STMemory_ReadWord(TosAddress+28)>>1; /* TOS country code */
203: bHdIsOn = (ACSI_EMU_ON || GEMDOS_EMU_ON);
204: pPatch = TosPatches;
1.1 root 205:
1.1.1.6 root 206: /* Apply TOS patches: */
207: while(pPatch->Version)
208: {
1.1.1.7 root 209: /* Only apply patches that suit to the actual TOS version: */
1.1.1.6 root 210: if(pPatch->Version == TosVersion
211: && (pPatch->Country == TosCountry || pPatch->Country == -1))
212: {
213: /* Make sure that we really patch the right place by comparing data: */
214: if(STMemory_ReadLong(pPatch->Address) == pPatch->OldData)
1.1.1.5 root 215: {
1.1.1.6 root 216: /* Only apply the patch if it is really needed: */
217: if(pPatch->Flags == TP_ALWAYS || (pPatch->Flags == TP_HD_ON && bHdIsOn)
218: || (pPatch->Flags == TP_HD_OFF && !bHdIsOn))
1.1.1.5 root 219: {
1.1.1.6 root 220: /* Now we can really apply the patch! */
221: /*fprintf(stderr, "Applying TOS patch '%s'.\n", pPatch->pszName);*/
222: memcpy(&STRam[pPatch->Address], pPatch->pNewData, pPatch->Size);
1.1.1.5 root 223: }
1.1.1.6 root 224: else
1.1.1.5 root 225: {
1.1.1.6 root 226: /*fprintf(stderr, "Skipped patch '%s'.\n", pPatch->pszName);*/
1.1.1.5 root 227: }
1.1.1.6 root 228: nGoodPatches += 1;
1.1.1.5 root 229: }
230: else
231: {
1.1.1.10! root 232: Log_Printf(LOG_DEBUG, "Failed to apply TOS patch '%s' at %x (expected %x, found %x).\n",
! 233: pPatch->pszName, pPatch->Address, pPatch->OldData, STMemory_ReadLong(pPatch->Address));
1.1.1.6 root 234: nBadPatches += 1;
1.1.1.5 root 235: }
1.1.1.6 root 236: }
237: pPatch += 1;
238: }
1.1 root 239:
1.1.1.10! root 240: Log_Printf(LOG_DEBUG, "Applied %i TOS patches, %i patches failed.\n",
! 241: nGoodPatches, nBadPatches);
1.1 root 242: }
243:
1.1.1.3 root 244:
245: /*-----------------------------------------------------------------------*/
1.1 root 246: /*
247: Set default memory configuration, connected floppies and memory size
248: */
1.1.1.6 root 249: static void TOS_SetDefaultMemoryConfig(void)
1.1 root 250: {
1.1.1.3 root 251: /* As TOS checks hardware for memory size + connected devices on boot-up */
252: /* we set these values ourselves and fill in the magic numbers so TOS */
253: /* skips these tests which would crash the emulator as the reference the MMU */
254:
255: /* Fill in magic numbers, so TOS does not try to reference MMU */
1.1.1.6 root 256: STMemory_WriteLong(0x420, 0x752019f3); /* memvalid - configuration is valid */
257: STMemory_WriteLong(0x43a, 0x237698aa); /* another magic # */
258: STMemory_WriteLong(0x51a, 0x5555aaaa); /* and another */
1.1 root 259:
1.1.1.3 root 260: /* Set memory size, adjust for extra VDI screens if needed */
1.1.1.5 root 261: if (bUseVDIRes)
262: {
1.1.1.3 root 263: /* This is enough for 1024x768x16colour (0x60000) */
1.1.1.6 root 264: STMemory_WriteLong(0x436, MemoryInfo[ConfigureParams.Memory.nMemorySize].PhysTop-0x60000); /* mem top - upper end of user memory (before 32k screen) */
265: STMemory_WriteLong(0x42e, MemoryInfo[ConfigureParams.Memory.nMemorySize].PhysTop-0x58000); /* phys top */
1.1 root 266: }
1.1.1.5 root 267: else
268: {
1.1.1.9 root 269: STMemory_WriteLong(0x436, MemoryInfo[ConfigureParams.Memory.nMemorySize].PhysTop-0x8000); /* mem top - upper end of user memory (before 32k screen) */
1.1.1.6 root 270: STMemory_WriteLong(0x42e, MemoryInfo[ConfigureParams.Memory.nMemorySize].PhysTop); /* phys top */
1.1 root 271: }
1.1.1.6 root 272: STMemory_WriteByte(0x424, MemoryInfo[ConfigureParams.Memory.nMemorySize].MemoryConfig);
273: STMemory_WriteByte(0xff8001, MemoryInfo[ConfigureParams.Memory.nMemorySize].MemoryConfig);
1.1 root 274:
1.1.1.7 root 275: /* Set memory range */
1.1.1.3 root 276: STRamEnd = MemoryInfo[ConfigureParams.Memory.nMemorySize].MemoryEnd; /* Set end of RAM */
277:
278: /* Set TOS floppies */
1.1.1.6 root 279: STMemory_WriteWord(0x446, nBootDrive); /* Boot up on A(0) or C(2) */
1.1.1.9 root 280: //STMemory_WriteWord(0x4a6, 0x2); /* Connected floppies A,B (0 or 2) */
1.1.1.4 root 281:
1.1.1.3 root 282: ConnectedDriveMask = ConnectedDriveMaskList[ConfigureParams.HardDisc.nDriveList];
1.1.1.4 root 283:
1.1.1.6 root 284: STMemory_WriteLong(0x4c2, ConnectedDriveMask); /* Drives A,B and C - NOTE some TOS images overwrite value, see 'TOS_ConnectedDrive_OpCode' */
1.1 root 285:
1.1.1.3 root 286: /* Mirror ROM boot vectors */
1.1.1.6 root 287: STMemory_WriteLong(0x00, STMemory_ReadLong(TosAddress));
288: STMemory_WriteLong(0x04, STMemory_ReadLong(TosAddress+4));
1.1.1.7 root 289:
290: /* Initialize the memory banks: */
291: memory_uninit();
292: memory_init(STRamEnd, 0, TosAddress);
1.1.1.6 root 293: }
294:
295:
296: /*-----------------------------------------------------------------------*/
297: /*
298: Load TOS Rom image file into ST memory space and fix image so can emulate correctly
299: Pre TOS 1.06 are loaded at 0xFC0000 with later ones at 0xE00000
300: */
301: int TOS_LoadImage(void)
302: {
1.1.1.10! root 303: Uint8 *pTosFile = NULL;
1.1.1.6 root 304:
305: bTosImageLoaded = FALSE;
306:
307: /* Load TOS image into memory so we can check it's vesion */
308: TosVersion = 0;
1.1.1.9 root 309: pTosFile = File_Read(ConfigureParams.Rom.szTosImageFileName, NULL, NULL, pszTosNameExts);
310: TosSize = File_Length(ConfigureParams.Rom.szTosImageFileName);
1.1.1.6 root 311:
312: if(pTosFile && TosSize>0)
313: {
1.1.1.7 root 314: /* Check for RAM TOS images first: */
1.1.1.8 root 315: if(SDL_SwapBE32(*(Uint32 *)pTosFile) == 0x46FC2700)
1.1.1.7 root 316: {
1.1.1.10! root 317: Log_Printf(LOG_WARN, "Detected a RAM TOS - this will probably not work very well!\n");
1.1.1.7 root 318: /* RAM TOS images have a 256 bytes loader function before the real image
319: * starts, so we simply skip the first 256 bytes here: */
320: TosSize -= 0x100;
321: memmove(pTosFile, pTosFile + 0x100, TosSize);
322: bRamTosImage = TRUE;
323: }
324: else
325: {
326: bRamTosImage = FALSE;
327: }
328:
1.1.1.6 root 329: /* Now, look at start of image to find Version number and address */
1.1.1.10! root 330: TosVersion = SDL_SwapBE16(*(Uint16 *)&pTosFile[2]);
! 331: TosAddress = SDL_SwapBE32(*(Uint32 *)&pTosFile[8]);
1.1.1.6 root 332:
333: /* Check for reasonable TOS version: */
334: if(TosVersion<0x100 || TosVersion>0x500 || TosSize>1024*1024L
1.1.1.7 root 335: || (!bRamTosImage && TosAddress!=0xe00000 && TosAddress!=0xfc0000))
1.1.1.6 root 336: {
1.1.1.10! root 337: Log_AlertDlg(LOG_FATAL, "Your TOS image seems not to be a valid TOS ROM file!\n"
! 338: "(TOS version %x, address $%x)", TosVersion, TosAddress);
1.1.1.6 root 339: return -2;
340: }
341:
1.1.1.10! root 342: /* TOSes 1.06 and 1.62 are for the STE ONLY and so don't run on a real ST. */
1.1.1.6 root 343: /* They access illegal memory addresses which don't exist on a real machine and cause the OS */
1.1.1.10! root 344: /* to lock up. So, if user selects one of these, switch to STE mode. */
! 345: if ((TosVersion == 0x0106 || TosVersion == 0x0162) && ConfigureParams.System.nMachineType != MACHINE_STE)
1.1.1.6 root 346: {
1.1.1.10! root 347: Log_AlertDlg(LOG_INFO, "TOS versions 1.06 and 1.62\nare NOT valid ST ROM images.\n"
! 348: " => Switching to STE mode now.\n");
! 349: IoMem_UnInit();
! 350: ConfigureParams.System.nMachineType = MACHINE_STE;
! 351: IoMem_Init();
1.1.1.6 root 352: }
353:
354: /* Copy loaded image into ST memory */
1.1.1.10! root 355: memcpy(STRam+TosAddress, pTosFile, TosSize);
1.1.1.6 root 356: }
357: else
358: {
1.1.1.10! root 359: Log_AlertDlg(LOG_FATAL, "Can not load TOS file:\n'%s'", ConfigureParams.Rom.szTosImageFileName);
1.1.1.6 root 360: return -1;
361: }
362:
1.1.1.10! root 363: Log_Printf(LOG_DEBUG, "Loaded TOS version %i.%c%c, starting at $%x, "
1.1.1.6 root 364: "country code = %i, %s\n", TosVersion>>8, '0'+((TosVersion>>4)&0x0f),
365: '0'+(TosVersion&0x0f), TosAddress, STMemory_ReadWord(TosAddress+28)>>1,
366: (STMemory_ReadWord(TosAddress+28)&1)?"PAL":"NTSC");
367:
368: /* Are we allowed VDI under this TOS? */
1.1.1.10! root 369: if (TosVersion == 0x0100 && bUseVDIRes)
1.1.1.6 root 370: {
1.1.1.10! root 371: /* Warn user */
! 372: Log_AlertDlg(LOG_WARN, "To use GEM extended resolutions, you must select a TOS >= 1.02.");
1.1.1.6 root 373: /* And select non VDI */
1.1.1.9 root 374: bUseVDIRes = ConfigureParams.Screen.bUseExtVdiResolutions = FALSE;
1.1.1.6 root 375: }
376:
377: /* Fix TOS image, modify code for emulation */
378: TOS_FixRom();
379:
380: /* Set connected devices, memory configuration */
381: TOS_SetDefaultMemoryConfig();
382:
383: /* and free loaded image */
1.1.1.10! root 384: free(pTosFile);
1.1.1.6 root 385:
386: bTosImageLoaded = TRUE;
387: return 0;
1.1 root 388: }
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