Annotation of hatari/src/ioMemTabFalcon.c, revision 1.1.1.13

1.1       root        1: /*
                      2:   Hatari - ioMemTabFalcon.c
                      3: 
1.1.1.9   root        4:   This file is distributed under the GNU General Public License, version 2
                      5:   or at your option any later version. Read the file gpl.txt for details.
1.1       root        6: 
                      7:   Table with hardware IO handlers for the Falcon.
                      8: */
1.1.1.3   root        9: const char IoMemTabFalc_fileid[] = "Hatari ioMemTabFalcon.c : " __DATE__ " " __TIME__;
1.1       root       10: 
                     11: #include "main.h"
                     12: #include "fdc.h"
1.1.1.9   root       13: #include "acia.h"
1.1       root       14: #include "ioMem.h"
                     15: #include "ioMemTables.h"
1.1.1.6   root       16: #include "m68000.h"
1.1       root       17: #include "joy.h"
                     18: #include "mfp.h"
                     19: #include "midi.h"
                     20: #include "nvram.h"
                     21: #include "psg.h"
                     22: #include "rs232.h"
                     23: #include "rtc.h"
1.1.1.6   root       24: #include "screen.h"
1.1       root       25: #include "blitter.h"
1.1.1.5   root       26: #include "crossbar.h"
1.1       root       27: #include "falcon/videl.h"
1.1.1.10  root       28: #include "configuration.h"
                     29: #include "statusbar.h"
1.1.1.13! root       30: #include "stMemory.h"
1.1       root       31: #if ENABLE_DSP_EMU
                     32: #include "falcon/dsp.h"
                     33: #endif
                     34: 
                     35: /**
                     36:  * no DSP
                     37:  */
                     38: void IoMemTabFalcon_DSPnone(void (**readtab)(void), void (**writetab)(void))
                     39: {
                     40:        int i, offset;
1.1.1.12  root       41: 
1.1       root       42:        offset = 0xffa200 - 0xff8000;
1.1.1.12  root       43:        for (i = 0; i < 8; i++)
                     44:        {
1.1       root       45:                readtab[offset+i] = IoMem_ReadWithoutInterception;
                     46:        }
                     47:        readtab[offset+2] = IoMem_VoidRead;     /* TODO: why this is needed */
1.1.1.12  root       48:        for (i = 0; i < 8; i++)
                     49:        {
1.1       root       50:                writetab[offset+i] = IoMem_WriteWithoutInterception;
                     51:        }
                     52: }
                     53: 
                     54: /**
                     55:  *  Just a temporary hack - some programs are polling on this register and
                     56:  * are expecting the handshake bit (#7) to change after a while...
                     57:  */
                     58: static void DSP_DummyHostCommand_ReadByte(void)
                     59: {
                     60:        IoMem[0xffa201] ^= 0x80;
                     61: }
                     62: 
                     63: /**
                     64:  *  Just a temporary hack - some programs are polling on this register and
                     65:  * are expecting some bits to change after a while...
                     66:  */
                     67: static void DSP_DummyInterruptStatus_ReadByte(void)
                     68: {
                     69:        IoMem[0xffa202] ^= 0xff;
                     70: }
                     71: 
                     72: /**
                     73:  * dummy IO when DSP emulation is not enabled
                     74:  */
                     75: void IoMemTabFalcon_DSPdummy(void (**readtab)(void), void (**writetab)(void))
                     76: {
                     77:        int i, offset;
1.1.1.12  root       78: 
1.1       root       79:        offset = 0xffa200 - 0xff8000;
                     80:        readtab[offset+0] = IoMem_ReadWithoutInterception;
                     81:        readtab[offset+1] = DSP_DummyHostCommand_ReadByte;
                     82:        readtab[offset+2] = DSP_DummyInterruptStatus_ReadByte;
1.1.1.12  root       83:        for (i = 3; i < 8; i++)
                     84:        {
1.1       root       85:                readtab[offset+i] = IoMem_ReadWithoutInterception;
                     86:        }
1.1.1.12  root       87:        for (i = 0; i < 8; i++)
                     88:        {
1.1       root       89:                writetab[offset+i] = IoMem_WriteWithoutInterception;
                     90:        }
                     91: }
                     92: 
                     93: #if ENABLE_DSP_EMU
                     94: /**
                     95:  * enable DSP emulation
                     96:  */
                     97: void IoMemTabFalcon_DSPemulation(void (**readtab)(void), void (**writetab)(void))
                     98: {
                     99:        int i, offset;
1.1.1.12  root      100: 
1.1       root      101:        offset = 0xffa200 - 0xff8000;
1.1.1.12  root      102:        for (i = 0; i < 8; i++)
                    103:        {
1.1       root      104:                readtab[offset+i]  = DSP_HandleReadAccess;
                    105:                writetab[offset+i] = DSP_HandleWriteAccess;
                    106:        }
                    107: }
                    108: #endif
                    109: 
                    110: 
1.1.1.6   root      111: /**
                    112:  * Take into account the Falcon Bus Control register $ff8007.b
                    113:        $FFFF8007 Falcon Bus Control
1.1.1.13! root      114:                BIT 6 : F30 Start (0=Cold, 1=Warm)
1.1.1.6   root      115:                BIT 5 : STe Bus Emulation (0=on)
                    116:                BIT 3 : Blitter Flag (0=on, 1=off)
                    117:                BIT 2 : Blitter (0=8mhz, 1=16mhz)
                    118:                BIT 0 : 68030 (0=8mhz, 1=16mhz)
                    119: */
                    120: static void IoMemTabFalcon_BusCtrl_WriteByte(void)
                    121: {
                    122:        Uint8 busCtrl = IoMem_ReadByte(0xff8007);
1.1.1.12  root      123: 
1.1.1.6   root      124:        /* Set Falcon bus or STE compatible bus emulation */
                    125:        if ((busCtrl & 0x20) == 0)
                    126:                IoMem_Init_FalconInSTeBuscompatibilityMode(0);
                    127:        else
                    128:                IoMem_Init_FalconInSTeBuscompatibilityMode(1);
                    129: 
1.1.1.13! root      130:        /* 68030 Frequency changed ? We change freq only in 68030 mode
        !           131:         * for a normal Falcon, not if CPU is 68040 or 68060 is used,
        !           132:         * or if the user requested a faster frequency manually */
        !           133:        if (ConfigureParams.System.nCpuLevel == 3 && ConfigureParams.System.nCpuFreq <= 16)
1.1.1.11  root      134:        {
                    135:                if ((busCtrl & 0x1) == 1) {
                    136:                        /* 16 Mhz bus for 68030 */
1.1.1.13! root      137:                        Configuration_ChangeCpuFreq ( 16 );
1.1.1.11  root      138:                }
                    139:                else {
                    140:                        /* 8 Mhz bus for 68030 */
1.1.1.13! root      141:                        Configuration_ChangeCpuFreq ( 8 );
1.1.1.11  root      142:                }
1.1.1.6   root      143:        }
1.1.1.12  root      144:        Statusbar_UpdateInfo();                 /* Update clock speed in the status bar */
1.1.1.6   root      145: }
                    146: 
                    147: 
1.1.1.12  root      148: /**
                    149:  * This register represents the configuration switches ("half moon" soldering
                    150:  * points) on the Falcon's motherboard at location U46 and U47. The meaning
                    151:  * of the switches is the following:
                    152:  *
                    153:  *  1-5   Not used
                    154:  *   6    Connected = Quad Density Floppy; not connected = Don't care
                    155:  *   7    Connected = AJAX FDC (1.44MB); not connected = 1772 FDC (720K)
                    156:  *   8    Connected = No DMA sound; not connected = DMA Sound available
                    157:  *
                    158:  * Logic is inverted, i.e. connected means the corresponding bit is 0.
                    159:  * Switch 8 is represented by the highest bit in the register.
                    160:  */
                    161: static void IoMemTabFalc_Switches_ReadByte(void)
                    162: {
                    163:        IoMem_WriteByte(0xff9200, 0xbf);
                    164: }
                    165: 
                    166: 
                    167: /**
                    168:  * Some IO memory ranges do not result in a bus error when accessed
                    169:  * in STE-compatible bus mode and with single byte access.
                    170:  */
                    171: static void IoMemTabFalc_Compatible_ReadByte(void)
                    172: {
                    173:        if (nIoMemAccessSize != SIZE_BYTE || (IoMem_ReadByte(0xff8007) & 0x20) != 0)
                    174:        {
1.1.1.13! root      175:                M68000_BusError(IoAccessFullAddress, BUS_ERROR_READ,
1.1.1.12  root      176:                                nIoMemAccessSize, BUS_ERROR_ACCESS_DATA);
                    177:        }
                    178: }
                    179: 
                    180: static void IoMemTabFalc_Compatible_WriteByte(void)
                    181: {
                    182:        if (nIoMemAccessSize != SIZE_BYTE || (IoMem_ReadByte(0xff8007) & 0x20) != 0)
                    183:        {
1.1.1.13! root      184:                M68000_BusError(IoAccessFullAddress, BUS_ERROR_WRITE,
1.1.1.12  root      185:                                nIoMemAccessSize, BUS_ERROR_ACCESS_DATA);
                    186:        }
                    187: }
                    188: 
                    189: /**
                    190:  * Some IO memory ranges do not result in a bus error when
                    191:  * accessed in STE-compatible bus mode and with word access.
                    192:  */
                    193: static void IoMemTabFalc_Compatible_ReadWord(void)
                    194: {
                    195:        if (nIoMemAccessSize == SIZE_BYTE || (IoMem_ReadByte(0xff8007) & 0x20) != 0)
                    196:        {
1.1.1.13! root      197:                M68000_BusError(IoAccessFullAddress, BUS_ERROR_READ,
1.1.1.12  root      198:                                nIoMemAccessSize, BUS_ERROR_ACCESS_DATA);
                    199:        }
                    200: }
                    201: 
                    202: static void IoMemTabFalc_Compatible_WriteWord(void)
                    203: {
                    204:        if (nIoMemAccessSize == SIZE_BYTE || (IoMem_ReadByte(0xff8007) & 0x20) != 0)
                    205:        {
1.1.1.13! root      206:                M68000_BusError(IoAccessFullAddress, BUS_ERROR_WRITE,
1.1.1.12  root      207:                                nIoMemAccessSize, BUS_ERROR_ACCESS_DATA);
                    208:        }
                    209: }
                    210: 
1.1       root      211: /*-----------------------------------------------------------------------*/
                    212: /*
                    213:   List of functions to handle read/write hardware interceptions for a Falcon.
                    214: */
                    215: const INTERCEPT_ACCESS_FUNC IoMemTable_Falcon[] =
                    216: {
                    217:        { 0xff8000, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.13! root      218:        { 0xff8001, SIZE_BYTE, STMemory_MMU_Config_ReadByte, STMemory_MMU_Config_WriteByte },   /* Memory configuration */
1.1.1.6   root      219:        { 0xff8006, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_Monitor_WriteByte },        /* Falcon monitor and memory configuration */
                    220:        { 0xff8007, SIZE_BYTE, IoMem_ReadWithoutInterception, IoMemTabFalcon_BusCtrl_WriteByte }, /* Falcon bus configuration */
1.1       root      221:        { 0xff800C, SIZE_WORD, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    222:        { 0xff8060, SIZE_LONG, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    223: 
                    224:        { 0xff8200, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.6   root      225:        { 0xff8201, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_ScreenBase_WriteByte },     /* Video base high byte */
1.1       root      226:        { 0xff8202, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.6   root      227:        { 0xff8203, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_ScreenBase_WriteByte },     /* Video base med byte */
1.1       root      228:        { 0xff8204, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.8   root      229:        { 0xff8205, SIZE_BYTE, VIDEL_ScreenCounter_ReadByte, VIDEL_ScreenCounter_WriteByte },
1.1       root      230:        { 0xff8206, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.8   root      231:        { 0xff8207, SIZE_BYTE, VIDEL_ScreenCounter_ReadByte, VIDEL_ScreenCounter_WriteByte },
1.1       root      232:        { 0xff8208, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.8   root      233:        { 0xff8209, SIZE_BYTE, VIDEL_ScreenCounter_ReadByte, VIDEL_ScreenCounter_WriteByte },
                    234:        { 0xff820a, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_SyncMode_WriteByte },       /* VIDEL Synch mode */
1.1.1.6   root      235:        { 0xff820b, SIZE_BYTE, IoMem_VoidRead_00, IoMem_VoidWrite },                            /* No bus error here : return 0 not ff */
                    236:        { 0xff820c, SIZE_BYTE, IoMem_VoidRead_00, IoMem_VoidWrite },                            /* No bus error here : return 0 not ff */
1.1.1.8   root      237:        { 0xff820d, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_ScreenBase_WriteByte },     /* Video base low byte */
1.1.1.13! root      238:        { 0xff820e, SIZE_WORD, VIDEL_LineOffset_ReadWord, VIDEL_LineOffset_WriteWord },         /* Falcon line offset */
1.1.1.8   root      239:        { 0xff8210, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_Line_Width_WriteWord },     /* Falcon line width */
                    240:        { 0xff8212, 46       , IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.10  root      241: 
                    242:        { 0xff8240, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color0_WriteWord },         /* ST COLOR 0 */
                    243:        { 0xff8242, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color1_WriteWord },         /* ST COLOR 1 */
                    244:        { 0xff8244, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color2_WriteWord },         /* ST COLOR 2 */
                    245:        { 0xff8246, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color3_WriteWord },         /* ST COLOR 3 */
                    246:        { 0xff8248, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color4_WriteWord },         /* ST COLOR 4 */
                    247:        { 0xff824a, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color5_WriteWord },         /* ST COLOR 5 */
                    248:        { 0xff824c, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color6_WriteWord },         /* ST COLOR 6 */
                    249:        { 0xff824e, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color7_WriteWord },         /* ST COLOR 7 */
                    250:        { 0xff8250, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color8_WriteWord },         /* ST COLOR 8 */
                    251:        { 0xff8252, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color9_WriteWord },         /* ST COLOR 9 */
                    252:        { 0xff8254, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color10_WriteWord },        /* ST COLOR 10 */
                    253:        { 0xff8256, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color11_WriteWord },        /* ST COLOR 11 */
                    254:        { 0xff8258, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color12_WriteWord },        /* ST COLOR 12 */
                    255:        { 0xff825a, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color13_WriteWord },        /* ST COLOR 13 */
                    256:        { 0xff825c, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color14_WriteWord },        /* ST COLOR 14 */
                    257:        { 0xff825e, SIZE_WORD, IoMem_ReadWithoutInterception, Videl_Color15_WriteWord },        /* ST COLOR 15 */
                    258: 
1.1.1.8   root      259:        { 0xff8260, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_ST_ShiftModeWriteByte },
                    260:        { 0xff8261, 3        , IoMem_VoidRead_00, IoMem_VoidWrite },                            /* No bus errors here : return 0 not ff */
                    261:        { 0xff8264, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_HorScroll64_WriteByte },    /* Falcon horizontal fine scrolling high ? */
                    262:        { 0xff8265, SIZE_BYTE, IoMem_ReadWithoutInterception, VIDEL_HorScroll65_WriteByte },    /* horizontal fine scrolling */
                    263:        { 0xff8266, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_Falcon_ShiftMode_WriteWord }, /* Falcon shift mode */
                    264:        { 0xff8268, 24       , IoMem_VoidRead_00, IoMem_VoidWrite },                            /* No bus errors here : return 0 not ff */
1.1       root      265: 
1.1.1.6   root      266:        { 0xff8280, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HHC_WriteWord },            /* HHC : Horizontal Hold Counter */
                    267:        { 0xff8282, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HHT_WriteWord },            /* HHT : Horizontal Hold Timer */
                    268:        { 0xff8284, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HBB_WriteWord },            /* HBB : Horizontal Border Begin */
                    269:        { 0xff8286, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HBE_WriteWord },            /* HBE : Horizontal Border End */
                    270:        { 0xff8288, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HDB_WriteWord },            /* HDB : Horizontal Display Begin */
                    271:        { 0xff828a, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HDE_WriteWord },            /* HDE : Horizontal Display End */
                    272:        { 0xff828c, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HSS_WriteWord },            /* HSS : Horizontal SS */
                    273:        { 0xff828e, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HFS_WriteWord },            /* HFS : Horizontal FS */
                    274:        { 0xff8290, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_HEE_WriteWord },            /* HEE : Horizontal EE */
                    275:        { 0xff8292, 14,        IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus errors here */
                    276:        { 0xff82a0, SIZE_WORD, VIDEL_VFC_ReadWord, IoMem_VoidWrite },                           /* VFC - Vertical Frequency Counter */
                    277:        { 0xff82a2, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VFT_WriteWord },            /* VFT - Vertical Frequency Timer */
                    278:        { 0xff82a4, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VBB_WriteWord },            /* VBB - Vertical Border Begin */
                    279:        { 0xff82a6, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VBE_WriteWord },            /* VBE - Vertical Border End */
                    280:        { 0xff82a8, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VDB_WriteWord },            /* VDB - Vertical Display Begin */
                    281:        { 0xff82aa, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VDE_WriteWord },            /* VDE - Vertical Display End */
                    282:        { 0xff82ac, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VSS_WriteWord },            /* VSS - Vertical SS */
                    283:        { 0xff82ae, 18,        IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus errors here */
                    284:        { 0xff82c0, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VCO_WriteWord },            /* VCO - Video control */
                    285:        { 0xff82c2, SIZE_WORD, IoMem_ReadWithoutInterception, VIDEL_VMD_WriteWord },            /* VMD - Video mode */
1.1       root      286: 
1.1.1.12  root      287:        { 0xff8560, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    288:        { 0xff8564, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    289: 
1.1       root      290:        { 0xff8604, SIZE_WORD, FDC_DiskControllerStatus_ReadWord, FDC_DiskController_WriteWord },
                    291:        { 0xff8606, SIZE_WORD, FDC_DmaStatus_ReadWord, FDC_DmaModeControl_WriteWord },
                    292:        { 0xff8608, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.7   root      293:        { 0xff8609, SIZE_BYTE, FDC_DmaAddress_ReadByte, FDC_DmaAddress_WriteByte },             /* DMA base and counter high byte */
1.1       root      294:        { 0xff860a, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.7   root      295:        { 0xff860b, SIZE_BYTE, FDC_DmaAddress_ReadByte, FDC_DmaAddress_WriteByte },             /* DMA base and counter med byte  */
1.1       root      296:        { 0xff860c, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.7   root      297:        { 0xff860d, SIZE_BYTE, FDC_DmaAddress_ReadByte, FDC_DmaAddress_WriteByte },             /* DMA base and counter low byte  */
1.1       root      298:        { 0xff860e, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    299:        { 0xff860f, SIZE_BYTE, FDC_FloppyMode_ReadByte, FDC_FloppyMode_WriteByte },             /* Floppy mode (?) register */
                    300: 
1.1.1.4   root      301:        { 0xff8800, SIZE_BYTE, PSG_ff8800_ReadByte, PSG_ff8800_WriteByte },
                    302:        { 0xff8801, SIZE_BYTE, PSG_ff880x_ReadByte, PSG_ff8801_WriteByte },
                    303:        { 0xff8802, SIZE_BYTE, PSG_ff880x_ReadByte, PSG_ff8802_WriteByte },
                    304:        { 0xff8803, SIZE_BYTE, PSG_ff880x_ReadByte, PSG_ff8803_WriteByte },
1.1       root      305: 
1.1.1.5   root      306:        { 0xff8900, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_BufferInter_WriteByte },       /* Crossbar Buffer interrupts */
                    307:        { 0xff8901, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_DmaCtrlReg_WriteByte },        /* Crossbar control register */
                    308:        { 0xff8902, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    309:        { 0xff8903, SIZE_BYTE, Crossbar_FrameStartHigh_ReadByte, Crossbar_FrameStartHigh_WriteByte }, /* DMA sound frame start high */
                    310:        { 0xff8904, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    311:        { 0xff8905, SIZE_BYTE, Crossbar_FrameStartMed_ReadByte, Crossbar_FrameStartMed_WriteByte },   /* DMA sound frame start med */
                    312:        { 0xff8906, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    313:        { 0xff8907, SIZE_BYTE, Crossbar_FrameStartLow_ReadByte, Crossbar_FrameStartLow_WriteByte },   /* DMA sound frame start low */
                    314:        { 0xff8908, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    315:        { 0xff8909, SIZE_BYTE, Crossbar_FrameCountHigh_ReadByte, Crossbar_FrameCountHigh_WriteByte }, /* DMA sound frame count high */
                    316:        { 0xff890a, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    317:        { 0xff890b, SIZE_BYTE, Crossbar_FrameCountMed_ReadByte, Crossbar_FrameCountMed_WriteByte },   /* DMA sound frame count med */
                    318:        { 0xff890c, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    319:        { 0xff890d, SIZE_BYTE, Crossbar_FrameCountLow_ReadByte, Crossbar_FrameCountLow_WriteByte },   /* DMA sound frame count low */
                    320:        { 0xff890e, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    321:        { 0xff890f, SIZE_BYTE, Crossbar_FrameEndHigh_ReadByte, Crossbar_FrameEndHigh_WriteByte },     /* DMA sound frame end high */
                    322:        { 0xff8910, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    323:        { 0xff8911, SIZE_BYTE, Crossbar_FrameEndMed_ReadByte, Crossbar_FrameEndMed_WriteByte },       /* DMA sound frame end med */
                    324:        { 0xff8912, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                                     /* No bus error here */
                    325:        { 0xff8913, SIZE_BYTE, Crossbar_FrameEndLow_ReadByte, Crossbar_FrameEndLow_WriteByte },       /* DMA sound frame end low */
                    326:        { 0xff8920, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_DmaTrckCtrl_WriteByte },       /* Crossbar track control */
                    327:        { 0xff8921, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_SoundModeCtrl_WriteByte },     /* DMA sound mode control */
1.1.1.8   root      328:        { 0xff8922, SIZE_WORD, IoMem_VoidRead_00, IoMem_VoidWrite },                                  /* Microwire data - n/a on Falcon, alwayes read 0 */
                    329:        { 0xff8924, SIZE_WORD, IoMem_ReadWithoutInterception, Crossbar_Microwire_WriteWord },         /* Microwire mask - n/a on Falcon, see crossbar.c */
1.1.1.5   root      330: 
1.1.1.9   root      331:        { 0xff8930, SIZE_WORD, IoMem_ReadWithoutInterception, Crossbar_SrcControler_WriteWord },   /* Crossbar source controller */
                    332:        { 0xff8932, SIZE_WORD, IoMem_ReadWithoutInterception, Crossbar_DstControler_WriteWord },   /* Crossbar destination controller */
1.1.1.5   root      333:        { 0xff8934, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_FreqDivExt_WriteByte },     /* External clock divider */
                    334:        { 0xff8935, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_FreqDivInt_WriteByte },     /* Internal clock divider */
                    335:        { 0xff8936, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_TrackRecSelect_WriteByte }, /* Track record select */
                    336:        { 0xff8937, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_CodecInput_WriteByte },     /* CODEC input source from 16 bits adder */
                    337:        { 0xff8938, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_AdcInput_WriteByte },       /* ADC converter input for L+R channel */
                    338:        { 0xff8939, SIZE_BYTE, IoMem_ReadWithoutInterception, Crossbar_InputAmp_WriteByte },       /* Input amplifier (+1.5 dB step) */
1.1.1.9   root      339:        { 0xff893a, SIZE_WORD, IoMem_ReadWithoutInterception, Crossbar_OutputReduct_WriteWord },   /* Output reduction (-1.5 dB step) */
1.1.1.5   root      340:        { 0xff893c, SIZE_WORD, IoMem_ReadWithoutInterception, Crossbar_CodecStatus_WriteWord },    /* CODEC status */
                    341:        { 0xff893e, SIZE_WORD, IoMem_ReadWithoutInterception, IoMem_WriteWithoutInterception },    /* No bus error here */
                    342:        { 0xff8940, SIZE_WORD, IoMem_ReadWithoutInterception, IoMem_WriteWithoutInterception },    /* GPx direction */
                    343:        { 0xff8942, SIZE_WORD, IoMem_ReadWithoutInterception, IoMem_WriteWithoutInterception },    /* GPx port */
1.1       root      344: 
                    345:        { 0xff8960, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    346:        { 0xff8961, SIZE_BYTE, NvRam_Select_ReadByte, NvRam_Select_WriteByte },                 /* NVRAM/RTC chip */
                    347:        { 0xff8962, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    348:        { 0xff8963, SIZE_BYTE, NvRam_Data_ReadByte, NvRam_Data_WriteByte },                     /* NVRAM/RTC chip */
                    349: 
1.1.1.3   root      350:        { 0xff8a00, SIZE_WORD, Blitter_Halftone00_ReadWord, Blitter_Halftone00_WriteWord }, /* Blitter halftone RAM 0 */
                    351:        { 0xff8a02, SIZE_WORD, Blitter_Halftone01_ReadWord, Blitter_Halftone01_WriteWord }, /* Blitter halftone RAM 1 */
                    352:        { 0xff8a04, SIZE_WORD, Blitter_Halftone02_ReadWord, Blitter_Halftone02_WriteWord }, /* Blitter halftone RAM 2 */
                    353:        { 0xff8a06, SIZE_WORD, Blitter_Halftone03_ReadWord, Blitter_Halftone03_WriteWord }, /* Blitter halftone RAM 3 */
                    354:        { 0xff8a08, SIZE_WORD, Blitter_Halftone04_ReadWord, Blitter_Halftone04_WriteWord }, /* Blitter halftone RAM 4 */
                    355:        { 0xff8a0a, SIZE_WORD, Blitter_Halftone05_ReadWord, Blitter_Halftone05_WriteWord }, /* Blitter halftone RAM 5 */
                    356:        { 0xff8a0c, SIZE_WORD, Blitter_Halftone06_ReadWord, Blitter_Halftone06_WriteWord }, /* Blitter halftone RAM 6 */
                    357:        { 0xff8a0e, SIZE_WORD, Blitter_Halftone07_ReadWord, Blitter_Halftone07_WriteWord }, /* Blitter halftone RAM 7 */
                    358:        { 0xff8a10, SIZE_WORD, Blitter_Halftone08_ReadWord, Blitter_Halftone08_WriteWord }, /* Blitter halftone RAM 8 */
                    359:        { 0xff8a12, SIZE_WORD, Blitter_Halftone09_ReadWord, Blitter_Halftone09_WriteWord }, /* Blitter halftone RAM 9 */
                    360:        { 0xff8a14, SIZE_WORD, Blitter_Halftone10_ReadWord, Blitter_Halftone10_WriteWord }, /* Blitter halftone RAM 10 */
                    361:        { 0xff8a16, SIZE_WORD, Blitter_Halftone11_ReadWord, Blitter_Halftone11_WriteWord }, /* Blitter halftone RAM 11 */
                    362:        { 0xff8a18, SIZE_WORD, Blitter_Halftone12_ReadWord, Blitter_Halftone12_WriteWord }, /* Blitter halftone RAM 12 */
                    363:        { 0xff8a1a, SIZE_WORD, Blitter_Halftone13_ReadWord, Blitter_Halftone13_WriteWord }, /* Blitter halftone RAM 13 */
                    364:        { 0xff8a1c, SIZE_WORD, Blitter_Halftone14_ReadWord, Blitter_Halftone14_WriteWord }, /* Blitter halftone RAM 14 */
                    365:        { 0xff8a1e, SIZE_WORD, Blitter_Halftone15_ReadWord, Blitter_Halftone15_WriteWord }, /* Blitter halftone RAM 15 */
                    366:        { 0xff8a20, SIZE_WORD, Blitter_SourceXInc_ReadWord, Blitter_SourceXInc_WriteWord }, /* Blitter source x increment */
                    367:        { 0xff8a22, SIZE_WORD, Blitter_SourceYInc_ReadWord, Blitter_SourceYInc_WriteWord }, /* Blitter source y increment */
1.1.1.2   root      368:        { 0xff8a24, SIZE_LONG, Blitter_SourceAddr_ReadLong, Blitter_SourceAddr_WriteLong },     /* Blitter source address */
1.1       root      369:        { 0xff8a28, SIZE_WORD, Blitter_Endmask1_ReadWord, Blitter_Endmask1_WriteWord },
                    370:        { 0xff8a2a, SIZE_WORD, Blitter_Endmask2_ReadWord, Blitter_Endmask2_WriteWord },
                    371:        { 0xff8a2c, SIZE_WORD, Blitter_Endmask3_ReadWord, Blitter_Endmask3_WriteWord },
1.1.1.3   root      372:        { 0xff8a2e, SIZE_WORD, Blitter_DestXInc_ReadWord, Blitter_DestXInc_WriteWord }, /* Blitter dest. x increment */
                    373:        { 0xff8a30, SIZE_WORD, Blitter_DestYInc_ReadWord, Blitter_DestYInc_WriteWord }, /* Blitter dest. y increment */
1.1       root      374:        { 0xff8a32, SIZE_LONG, Blitter_DestAddr_ReadLong, Blitter_DestAddr_WriteLong },
                    375:        { 0xff8a36, SIZE_WORD, Blitter_WordsPerLine_ReadWord, Blitter_WordsPerLine_WriteWord },
                    376:        { 0xff8a38, SIZE_WORD, Blitter_LinesPerBitblock_ReadWord, Blitter_LinesPerBitblock_WriteWord },
                    377:        { 0xff8a3a, SIZE_BYTE, Blitter_HalftoneOp_ReadByte, Blitter_HalftoneOp_WriteByte },
                    378:        { 0xff8a3b, SIZE_BYTE, Blitter_LogOp_ReadByte, Blitter_LogOp_WriteByte },
                    379:        { 0xff8a3c, SIZE_BYTE, Blitter_Control_ReadByte, Blitter_Control_WriteByte },
                    380:        { 0xff8a3d, SIZE_BYTE, Blitter_Skew_ReadByte, Blitter_Skew_WriteByte },
                    381:        { 0xff8a3e, SIZE_WORD, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    382: 
                    383:        { 0xff8c80, 8, IoMem_VoidRead, IoMem_WriteWithoutInterception },                        /* TODO: SCC */
                    384: 
1.1.1.12  root      385:        { 0xff9200, SIZE_BYTE, IoMemTabFalc_Switches_ReadByte, IoMem_WriteWithoutInterception }, /* Falcon switches */
                    386:        { 0xff9201, SIZE_BYTE, Joy_StePadButtons_ReadByte, IoMem_WriteWithoutInterception }, /* Joypad fire buttons */
1.1       root      387:        { 0xff9202, SIZE_WORD, Joy_StePadMulti_ReadWord, Joy_StePadMulti_WriteWord },     /* Joypad directions/buttons/selection */
1.1.1.5   root      388:        { 0xff9210, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                         /* No bus error here */
1.1       root      389:        { 0xff9211, SIZE_BYTE, IoMem_VoidRead, IoMem_WriteWithoutInterception },          /* Joypad 0 X position (?) */
1.1.1.5   root      390:        { 0xff9212, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                         /* No bus error here */
1.1       root      391:        { 0xff9213, SIZE_BYTE, IoMem_VoidRead, IoMem_WriteWithoutInterception },          /* Joypad 0 Y position (?) */
1.1.1.5   root      392:        { 0xff9214, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                         /* No bus error here */
1.1       root      393:        { 0xff9215, SIZE_BYTE, IoMem_VoidRead, IoMem_WriteWithoutInterception },          /* Joypad 1 X position (?) */
1.1.1.5   root      394:        { 0xff9216, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                         /* No bus error here */
1.1       root      395:        { 0xff9217, SIZE_BYTE, IoMem_VoidRead, IoMem_WriteWithoutInterception },          /* Joypad 1 Y position (?) */
1.1.1.5   root      396:        { 0xff9220, SIZE_WORD, IoMem_VoidRead, IoMem_WriteWithoutInterception },          /* Lightpen X position */
                    397:        { 0xff9222, SIZE_WORD, IoMem_VoidRead, IoMem_WriteWithoutInterception },          /* Lightpen Y position */
1.1       root      398: 
1.1.1.10  root      399:        { 0xff9800, 0x400, IoMem_ReadWithoutInterception, VIDEL_FalconColorRegsWrite },   /* Falcon Videl palette */
1.1       root      400: 
1.1.1.12  root      401:        { 0xffc020, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    402:        { 0xffc021, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    403:        { 0xffd020, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    404:        { 0xffd074, SIZE_WORD, IoMemTabFalc_Compatible_ReadWord, IoMemTabFalc_Compatible_WriteWord },
                    405:        { 0xffd420, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    406:        { 0xffd425, SIZE_BYTE, IoMemTabFalc_Compatible_ReadByte, IoMemTabFalc_Compatible_WriteByte },
                    407:        { 0xffd520, SIZE_WORD, IoMemTabFalc_Compatible_ReadWord, IoMemTabFalc_Compatible_WriteWord },
                    408:        { 0xffd530, SIZE_WORD, IoMemTabFalc_Compatible_ReadWord, IoMemTabFalc_Compatible_WriteWord },
                    409: 
1.1       root      410:        { 0xfffa00, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    411:        { 0xfffa01, SIZE_BYTE, MFP_GPIP_ReadByte, MFP_GPIP_WriteByte },
                    412:        { 0xfffa02, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    413:        { 0xfffa03, SIZE_BYTE, MFP_ActiveEdge_ReadByte, MFP_ActiveEdge_WriteByte },
                    414:        { 0xfffa04, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    415:        { 0xfffa05, SIZE_BYTE, MFP_DataDirection_ReadByte, MFP_DataDirection_WriteByte },
                    416:        { 0xfffa06, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    417:        { 0xfffa07, SIZE_BYTE, MFP_EnableA_ReadByte, MFP_EnableA_WriteByte },
                    418:        { 0xfffa08, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    419:        { 0xfffa09, SIZE_BYTE, MFP_EnableB_ReadByte, MFP_EnableB_WriteByte },
                    420:        { 0xfffa0a, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    421:        { 0xfffa0b, SIZE_BYTE, MFP_PendingA_ReadByte, MFP_PendingA_WriteByte },
                    422:        { 0xfffa0c, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    423:        { 0xfffa0d, SIZE_BYTE, MFP_PendingB_ReadByte, MFP_PendingB_WriteByte },
                    424:        { 0xfffa0e, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    425:        { 0xfffa0f, SIZE_BYTE, MFP_InServiceA_ReadByte, MFP_InServiceA_WriteByte },
                    426:        { 0xfffa10, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    427:        { 0xfffa11, SIZE_BYTE, MFP_InServiceB_ReadByte, MFP_InServiceB_WriteByte },
                    428:        { 0xfffa12, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    429:        { 0xfffa13, SIZE_BYTE, MFP_MaskA_ReadByte, MFP_MaskA_WriteByte },
                    430:        { 0xfffa14, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    431:        { 0xfffa15, SIZE_BYTE, MFP_MaskB_ReadByte, MFP_MaskB_WriteByte },
                    432:        { 0xfffa16, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    433:        { 0xfffa17, SIZE_BYTE, MFP_VectorReg_ReadByte, MFP_VectorReg_WriteByte },
                    434:        { 0xfffa18, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    435:        { 0xfffa19, SIZE_BYTE, MFP_TimerACtrl_ReadByte, MFP_TimerACtrl_WriteByte },
                    436:        { 0xfffa1a, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    437:        { 0xfffa1b, SIZE_BYTE, MFP_TimerBCtrl_ReadByte, MFP_TimerBCtrl_WriteByte },
                    438:        { 0xfffa1c, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    439:        { 0xfffa1d, SIZE_BYTE, MFP_TimerCDCtrl_ReadByte, MFP_TimerCDCtrl_WriteByte },
                    440:        { 0xfffa1e, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    441:        { 0xfffa1f, SIZE_BYTE, MFP_TimerAData_ReadByte, MFP_TimerAData_WriteByte },
                    442:        { 0xfffa20, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    443:        { 0xfffa21, SIZE_BYTE, MFP_TimerBData_ReadByte, MFP_TimerBData_WriteByte },
                    444:        { 0xfffa22, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    445:        { 0xfffa23, SIZE_BYTE, MFP_TimerCData_ReadByte, MFP_TimerCData_WriteByte },
                    446:        { 0xfffa24, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    447:        { 0xfffa25, SIZE_BYTE, MFP_TimerDData_ReadByte, MFP_TimerDData_WriteByte },
                    448: 
                    449:        { 0xfffa26, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    450:        { 0xfffa27, SIZE_BYTE, RS232_SCR_ReadByte, RS232_SCR_WriteByte },                 /* Sync character register */
                    451:        { 0xfffa28, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    452:        { 0xfffa29, SIZE_BYTE, RS232_UCR_ReadByte, RS232_UCR_WriteByte },                  /* USART control register */
                    453:        { 0xfffa2a, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    454:        { 0xfffa2b, SIZE_BYTE, RS232_RSR_ReadByte, RS232_RSR_WriteByte },                /* Receiver status register */
                    455:        { 0xfffa2c, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    456:        { 0xfffa2d, SIZE_BYTE, RS232_TSR_ReadByte, RS232_TSR_WriteByte },             /* Transmitter status register */
                    457:        { 0xfffa2e, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    458:        { 0xfffa2f, SIZE_BYTE, RS232_UDR_ReadByte, RS232_UDR_WriteByte },                     /* USART data register */
                    459: 
1.1.1.9   root      460:        { 0xfffc00, SIZE_BYTE, ACIA_IKBD_Read_SR, ACIA_IKBD_Write_CR },
1.1       root      461:        { 0xfffc01, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
1.1.1.9   root      462:        { 0xfffc02, SIZE_BYTE, ACIA_IKBD_Read_RDR, ACIA_IKBD_Write_TDR },
1.1       root      463:        { 0xfffc03, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    464:        { 0xfffc04, SIZE_BYTE, Midi_Control_ReadByte, Midi_Control_WriteByte },
                    465:        { 0xfffc05, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus error here */
                    466:        { 0xfffc06, SIZE_BYTE, Midi_Data_ReadByte, Midi_Data_WriteByte },
                    467:        { 0xfffc07, SIZE_BYTE, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus errors here */
                    468: 
                    469:        { 0xffff82, SIZE_WORD, IoMem_VoidRead, IoMem_VoidWrite },                               /* No bus errors here */
                    470: 
                    471:        { 0, 0, NULL, NULL }
                    472: };

unix.superglobalmegacorp.com

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.