Start of peripheral cleanup for clock.
This commit is contained in:
mpohoreski
parent
dd4e11f247
commit
3f2971335c
1 changed files with 96 additions and 16 deletions
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@ -36,6 +36,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#endif
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#include "..\resource\resource.h"
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// Memory Flag
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#define MF_80STORE 0x00000001
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#define MF_ALTZP 0x00000002
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#define MF_AUXREAD 0x00000004
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@ -61,6 +62,56 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#define SW_SLOTCXROM (memmode & MF_SLOTCXROM)
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#define SW_WRITERAM (memmode & MF_WRITERAM)
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/*
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MEMORY MANAGEMENT SOFT SWITCHES
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$C000 W 80STOREOFF Allow page2 to switch video page1 page2
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$C001 W 80STOREON Allow page2 to switch main & aux video memory
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$C002 W RAMRDOFF Read enable main memory from $0200-$BFFF
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$C003 W RAMDRON Read enable aux memory from $0200-$BFFF
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$C004 W RAMWRTOFF Write enable main memory from $0200-$BFFF
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$C005 W RAMWRTON Write enable aux memory from $0200-$BFFF
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$C006 W INTCXROMOFF Enable slot ROM from $C100-$CFFF
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$C007 W INTCXROMON Enable main ROM from $C100-$CFFF
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$C008 W ALZTPOFF Enable main memory from $0000-$01FF & avl BSR
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$C009 W ALTZPON Enable aux memory from $0000-$01FF & avl BSR
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$C00A W SLOTC3ROMOFF Enable main ROM from $C300-$C3FF
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$C00B W SLOTC3ROMON Enable slot ROM from $C300-$C3FF
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VIDEO SOFT SWITCHES
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$C00C W 80COLOFF Turn off 80 column display
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$C00D W 80COLON Turn on 80 column display
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$C00E W ALTCHARSETOFF Turn off alternate characters
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$C00F W ALTCHARSETON Turn on alternate characters
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$C050 R/W TEXTOFF Select graphics mode
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$C051 R/W TEXTON Select text mode
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$C052 R/W MIXEDOFF Use full screen for graphics
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$C053 R/W MIXEDON Use graphics with 4 lines of text
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$C054 R/W PAGE2OFF Select panel display (or main video memory)
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$C055 R/W PAGE2ON Select page2 display (or aux video memory)
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$C056 R/W HIRESOFF Select low resolution graphics
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$C057 R/W HIRESON Select high resolution graphics
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SOFT SWITCH STATUS FLAGS
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$C010 R7 AKD 1=key pressed 0=keys free (clears strobe)
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$C011 R7 BSRBANK2 1=bank2 available 0=bank1 available
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$C012 R7 BSRREADRAM 1=BSR active for read 0=$D000-$FFFF active
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$C013 R7 RAMRD 0=main $0200-$BFFF active reads 1=aux active
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$C014 R7 RAMWRT 0=main $0200-$BFFF active writes 1=aux writes
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$C015 R7 INTCXROM 1=main $C100-$CFFF ROM active 0=slot active
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$C016 R7 ALTZP 1=aux $0000-$1FF+auxBSR 0=main available
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$C017 R7 SLOTC3ROM 1=slot $C3 ROM active 0=main $C3 ROM active
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$C018 R7 80STORE 1=page2 switches main/aux 0=page2 video
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$C019 R7 VERTBLANK 1=vertical retrace on 0=vertical retrace off
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$C01A R7 TEXT 1=text mode is active 0=graphics mode active
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$C01B R7 MIXED 1=mixed graphics & text 0=full screen
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$C01C R7 PAGE2 1=video page2 selected or aux
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$C01D R7 HIRES 1=high resolution graphics 0=low resolution
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$C01E R7 ALTCHARSET 1=alt character set on 0=alt char set off
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$C01F R7 80COL 1=80 col display on 0=80 col display off
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*/
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//-----------------------------------------------------------------------------
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//static DWORD imagemode;
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@ -335,9 +386,22 @@ static BYTE __stdcall IOWrite_C07x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULON
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case 0xA: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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case 0xB: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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case 0xC: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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case 0xD: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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case 0xE: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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case 0xF: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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// case 0xD: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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case 0xD: // No Slot Clock Hack for ProDOS
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#if CLOCK_HACK_PRODOS
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Clock_Generic_UpdateProDos();
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#endif
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return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
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//http://www.1000bit.net/support/manuali/apple/technotes/aiie/tn.aiie.10.html
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//IOUDIS (W): $C07E
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// There is no IOU to disable
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//IOUDIS (W): $C07F
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// There is no IOU to enable
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//RDIOUDIS (R7): $C07E
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// There is no IOUDIS switch to read
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case 0xE: return IO_Null(pc, addr, bWrite, d, nCyclesLeft); // TODO: IOUDIS
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case 0xF: return IO_Null(pc, addr, bWrite, d, nCyclesLeft); // TODO: IOUDIS
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}
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return 0;
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@ -421,8 +485,8 @@ BYTE __stdcall IORead_Cxxx(WORD programcounter, WORD address, BYTE write, BYTE v
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if (SW_SLOTCXROM)
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{
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// NB. SW_SLOTCXROM==0 ensures that internal rom stays switched in
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memset(pCxRomPeripheral+0x800, 0, 0x800);
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memset(mem+0xC800, 0, 0x800);
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memset(pCxRomPeripheral+0x800, 0, FIRMWARE_EXPANSION_SIZE);
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memset(mem+FIRMWARE_EXPANSION_BEGIN, 0, FIRMWARE_EXPANSION_SIZE);
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g_eExpansionRomType = eExpRomNull;
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}
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@ -435,7 +499,7 @@ BYTE __stdcall IORead_Cxxx(WORD programcounter, WORD address, BYTE write, BYTE v
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if (IS_APPLE2 || SW_SLOTCXROM)
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{
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if ((address >= 0xC100) && (address <= 0xC7FF))
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if ((address >= APPLE_SLOT_BEGIN) && (address <= APPLE_SLOT_END))
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{
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const UINT uSlot = (address >> 8) & 0xF;
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if ((uSlot != 3) && ExpansionRom[uSlot])
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@ -445,7 +509,7 @@ BYTE __stdcall IORead_Cxxx(WORD programcounter, WORD address, BYTE write, BYTE v
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else if (!SW_SLOTC3ROM)
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IO_SELECT_InternalROM = 1; // Slot3 & Internal ROM
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}
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else if ((address >= 0xC800) && (address <= 0xCFFF))
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else if ((address >= FIRMWARE_EXPANSION_BEGIN) && (address <= FIRMWARE_EXPANSION_END))
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{
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IO_STROBE = 1;
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}
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@ -468,8 +532,8 @@ BYTE __stdcall IORead_Cxxx(WORD programcounter, WORD address, BYTE write, BYTE v
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if (ExpansionRom[uSlot] && (g_uPeripheralRomSlot != uSlot))
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{
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memcpy(pCxRomPeripheral+0x800, ExpansionRom[uSlot], 0x800);
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memcpy(mem+0xC800, ExpansionRom[uSlot], 0x800);
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memcpy(pCxRomPeripheral+0x800, ExpansionRom[uSlot], FIRMWARE_EXPANSION_SIZE);
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memcpy(mem+FIRMWARE_EXPANSION_BEGIN, ExpansionRom[uSlot], FIRMWARE_EXPANSION_SIZE);
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g_eExpansionRomType = eExpRomPeripheral;
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g_uPeripheralRomSlot = uSlot;
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}
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@ -478,7 +542,7 @@ BYTE __stdcall IORead_Cxxx(WORD programcounter, WORD address, BYTE write, BYTE v
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{
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// Enable Internal ROM
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// . Get this for PR#3
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memcpy(mem+0xC800, pCxRomInternal+0x800, 0x800);
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memcpy(mem+FIRMWARE_EXPANSION_BEGIN, pCxRomInternal+0x800, FIRMWARE_EXPANSION_SIZE);
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g_eExpansionRomType = eExpRomInternal;
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g_uPeripheralRomSlot = 0;
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}
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@ -489,21 +553,21 @@ BYTE __stdcall IORead_Cxxx(WORD programcounter, WORD address, BYTE write, BYTE v
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// !SW_SLOTC3ROM = Internal ROM: $C300-C3FF
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// !SW_SLOTCXROM = Internal ROM: $C100-CFFF
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if ((address >= 0xC100) && (address <= 0xC7FF)) // Don't care about state of SW_SLOTC3ROM
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if ((address >= APPLE_SLOT_BEGIN) && (address <= APPLE_SLOT_END)) // Don't care about state of SW_SLOTC3ROM
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IO_SELECT_InternalROM = 1;
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else if ((address >= 0xC800) && (address <= 0xCFFF))
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else if ((address >= FIRMWARE_EXPANSION_BEGIN) && (address <= FIRMWARE_EXPANSION_END))
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IO_STROBE = 1;
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if (!SW_SLOTCXROM && IO_SELECT_InternalROM && IO_STROBE && (g_eExpansionRomType != eExpRomInternal))
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{
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// Enable Internal ROM
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memcpy(mem+0xC800, pCxRomInternal+0x800, 0x800);
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memcpy(mem+FIRMWARE_EXPANSION_BEGIN, pCxRomInternal+0x800, FIRMWARE_EXPANSION_SIZE);
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g_eExpansionRomType = eExpRomInternal;
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g_uPeripheralRomSlot = 0;
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}
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}
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if ((g_eExpansionRomType == eExpRomNull) && (address >= 0xC800))
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if ((g_eExpansionRomType == eExpRomNull) && (address >= FIRMWARE_EXPANSION_BEGIN))
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return IO_Null(programcounter, address, write, value, nCyclesLeft);
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else
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return mem[address];
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@ -1056,13 +1120,29 @@ void MemInitialize()
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const UINT uSlot = 0;
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RegisterIoHandler(uSlot, MemSetPaging, MemSetPaging, NULL, NULL, NULL, NULL);
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// TODO: Cleanup peripheral setup!!!
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PrintLoadRom(pCxRomPeripheral, 1); // $C100 : Parallel printer f/w
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sg_SSC.CommInitialize(pCxRomPeripheral, 2); // $C200 : SSC
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// Slot 3 is reserved for AuxMem/80Col Card!
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if (g_Slot4 == CT_MouseInterface)
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{
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sg_Mouse.Initialize(pCxRomPeripheral, 4); // $C400 : Mouse f/w
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}
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else
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if (g_Slot4 == CT_GenericClock)
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{
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// LoadRom_Clock_Generic(pCxRomPeripheral, 4);
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}
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else
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// Why isn't mockingboard here?
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#ifdef SUPPORT_CPM
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ConfigureSoftcard(pCxRomPeripheral, 5, g_uZ80InSlot5); // $C500 : Z80 card
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#endif
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DiskLoadRom(pCxRomPeripheral, 6); // $C600 : Disk][ f/w
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HD_Load_Rom(pCxRomPeripheral, 7); // $C700 : HDD f/w
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@ -1271,7 +1351,7 @@ BYTE __stdcall MemSetPaging (WORD programcounter, WORD address, BYTE write, BYTE
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// Disable Internal ROM
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// . Similar to $CFFF access
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// . None of the peripheral cards can be driving the bus - so use the null ROM
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memset(pCxRomPeripheral+0x800, 0, 0x800);
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memset(pCxRomPeripheral+0x800, 0, FIRMWARE_EXPANSION_SIZE);
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memset(mem+0xC800, 0, 0x800);
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g_eExpansionRomType = eExpRomNull;
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g_uPeripheralRomSlot = 0;
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@ -1279,7 +1359,7 @@ BYTE __stdcall MemSetPaging (WORD programcounter, WORD address, BYTE write, BYTE
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else
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{
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// Enable Internal ROM
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memcpy(mem+0xC800, pCxRomInternal+0x800, 0x800);
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memcpy(mem+0xC800, pCxRomInternal+0x800, FIRMWARE_EXPANSION_SIZE);
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g_eExpansionRomType = eExpRomInternal;
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g_uPeripheralRomSlot = 0;
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}
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