Apple-2-Tools/AppleWin
1
0
Fork 0
mirror of https://github.com/AppleWin/AppleWin.git synced 2024-05-28 17:41:37 +00:00
Code Issues Projects Releases Wiki Activity

Start of peripheral cleanup for clock.

Browse Source
This commit is contained in:
mpohoreski 2009-02-13 08:16:03 +00:00
parent dd4e11f247
commit 3f2971335c
1 changed files with 96 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

112
AppleWin/source/Memory.cpp
View File

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