Service Pack 20 for Emu48 Version 1.0

DEBUGGER.C
- changed function UpdateStackWnd(), index of topmost item is now
  saved at content update
- changed function CheckBreakpoint(), allow breakpoints in an area
  now (used by memory breakpoints to get all touched addresses on a
  r=DATx fs access)

DEBUGGER.H
- changed prototype of function CheckBreakpoint()

EMU48.C
- use semaphores to avoid GDI trouble with NT in OnPaint()
- specify processor affinity for the cpu emulation thread to avoid
  problems with the QueryPerformanceCounter() function

EMU48.H
- extern declaration of global variable

EMU48.RC
- fixed multiple use of accelerator key in debugger menu
- changed version and copyright

ENGINE.C
- bugfix in function Debugger(), check complete address range of
  memory access area
- workaround for Win2k in function AdjustSpeed(), when command
  sequence took over 50ms new synchronizing of the emulation slow
  down part
- bugfix in function WorkerThread(), update NINT and NINT2 lines
  after port status changing

KML.C
- use semaphores to avoid GDI trouble with NT in RefreshButtons()

MOPS.C
- bugfix in function UckBit() and F4096Hz(), depending on clock
  value functions returned wrong results

OPCODES.C
- moved address field start and length array from OPS.H and made
  them public

OPCODES.H
- extern declaration of global address field start and length
  variables

OPS.H
- moved address field start and length array to OPCODES.C
- bugfix in function FASTPTR(), address area is only 5 nibbles long

RESOURCE.H
- deleted several unused definitions

RPL.C
- added function Metakernel() to detect MK2.30 and prior
- changed function RPL_Pick() and RPL_Push() to support
  "Save/Load Object" with a stack incompatible Metakernel versions

SERIAL.C
- use own OVERLAPPED stucture for reading and writing
- bugfix in function CommClose(), added additional delay to fix
  problems with some Kermit server
- bugfix in function CommTransmit(), wait until write completed

SETTINGS.C
- changed function ReadSettings(), use variable content as default


Service Pack 19 for Emu48 Version 1.0

DISPLAY.C
- added io.h in header definition
- bugfix in function CreateMainBitmap(), check error condition and
  realize palette also in memory DC
- bugfix in CreateLcdBitmap(), must set color palette for LCD DC
- bugfix in function UpdateAnnunciators(), annunciators are off if
  timer2 is stopped

DEBUGGER.C
- several modifications for memory breakpoint handling
- added step over interrupt code part setting
- bugfix in function NewValue(), at wrong input numbers ignore input
  string at <CANCEL> and set focus to edit control
- bugfix in function EnterAddr(), at wrong input numbers set focus
  to edit control

DEBUGGER.H
- added breakpoint type defines
- extern declaration of global variable
- changed prototype of function CheckBreakpoint()

EMU48.C
- added io.h in header definition
- changed function SettingsProc(), added HP/Class mnemonic setting
- bugfix in function SettingsProc(), new implementation of card
  detection port 1
- moved initialize/remove of the Critical Section part from main
  program to message handler
- changed function OnDropFiles(), OnStackCopy(), OnStackPaste(),
  OnObjectLoad() and OnObjectSave(), don't wait for changed state
  after function WaitForSleepState()
- bugfix in function OnObjectSave(), set info message when emulator
  is busy
- changed function Disasm(), removed HP/Class mnemonic setting
- bugfix in function Disasm(), addresses > 0x1869F showed in wrong
  format
- bugfix in function WinMain(), synchronized thread start

EMU48.H
- changed definition of PORT1_PRESENT, PORT1_WRITE, PORT2_PRESENT
  and PORT2_WRITE

EMU48.RC
- added HP/Class mnemonics in "Settings" dialog
- added "Interrupts" part in debugger menu
- added "Enter breakpoint" dialog
- changed version and copyright

ENGINE.C
- moved debugger part from function WorkerThread() to own function
- added C=DAT0 A, D0=D0+ 5, PC=(C) code sequence detection for RPL
  breakpoint in debugger
- added step over interrupt code part handler in debugger section
- bugfix in function SwitchToState(), when switch from Invalid into
  Run state then don't enter opcode loop on interrupt request or in
  SHUTDN mode
- changed function WorkerThread(), added memory breakpoint handler
- bugfix in function WorkerThread(), timer emulation in debugger
  part must check the timer RUN bit
- bugfix in function WorkerThread(), must set wakeup flag on SHUTDN
  on interrupt request condition
- changed function WorkerThread(), minor optimization

FILES.C
- added io.h in header definition
- bugfix in function OpenDocument(), check card detection only if
  enabled and set NINT line to low on a MP interrupt
- changed function DibNumColors(), optimized by removing case switch

IO.H
- added ANNCTRL and CARDSTAT definitions

MOPS.C
- removed conditional compiling with WSMSET
- bugfix in function RomSwitch(), mirror smaller ROMs than 2MB
- bugfix in function Npeek(), wrong content of SRQ2 register (0x119)
- bugfix in function ReadIO(), wrong implementation of the SMP and
  SWINT bit in the CARDCTL register (0x10E)
- bugfix in function ReadIO(), wrong implementation of the NINT2 and
  NINT bit in the SRQ2 register (0x119)
- bugfix in function WriteIO(), wrong implementation of the SMP and
  ECDT bit and removed some wrong stuff in the CARDCTL register
  (0x10E)
- bugfix in function WriteIO(), the DA19 bit in the LINECOUNT
  register (0x129) is also available in the Clarke hardware
- bugfix in function WriteIO(), the RUN bit in the TIMER2CTRL
  register (0x12F) has an affection to the display annunciators

OPCODES.C
- added io.h in header definition
- bugfix in RTI command, low NINT2 or NINT line reenter interrupt
- bugfix in function o808C() and o808E(), opcodes PC=(A) and PC=(C)
  modify the CRC register

OPCODES.H
- moved HST bit definition to TYPES.H

RESOURCE.H
- added several definitions

SETTINGS.C
- changed function ReadSettings() and WriteSettings(), added section
  [Disassembler] in INI-File

TYPES.H
- added definition of HST bits


Service Pack 18 for Emu48 Version 1.0

EMU48.RC
- changed version and copyright

ENGINE.C
- bugfix in function WorkerThread(), ignore SHUTDN on interrupt
  request

SERIAL.C
- bugfix in function CommOpen(), must wait for EV_RXCHAR event
  thread directly after opening the serial port


Service Pack 17 for Emu48 Version 1.0

DEBUGGER.C
- bugfix in function StrToReg() and OnLButtonUp(), wrong string to
  HEX conversation with lowercase letters
- bugfix in function Debugger(), used wrong background color in
  WM_CTLCOLORSTATIC message handler

EMU48.C
- bugfix in function SettingsProc(), don't overwite Serial-Ir
  setting in HP49 mode

EMU48.DSP
- added i28f160.c sources

EMU48.H
- extern declaration of global variable and functions

EMU48.RC
- changed version and copyright

FILES.C
- added new functions in the ROM patch part
- changed function PatchRom(), original content of patched address
  is saved now
- changed function MapRom(), added ROM writing feature
- changed function UnmapRom(), restore original content before
  closing
- bugfix in function MapPort2(), shared mode now works, when first
  program instance opened the file with Read/Write access
- changed function NewDocument() and OpenDocument(), initialize
  flash memory structure

I28F160.C
- new modul with I28F160 flash memory implementation

I28F160.H
- header file for flash memory implementation

MOPS.C
- changed function MapROM(), added flash register mode
- changed function Npeek(), added flash access part
- changed function Nread(), completed flash access part
- changed function Nwrite(), completed flash access part

OPS.H
- bugfix in function FASTPTR(), handle NULL pointer pages now
- bugfix in function Ninc(), Ndec(), Nadd(), Nsub(), Nrsub(), Nnot()
  and Nneg(), wrong results in dec mode with illegal decimal number
  entry

SETTINGS.C
- changed function ReadSettings() and WriteSettings(), added section
  [ROM] in INI-File

TIMER.C
- bugfix in function CalcT2(), workaround to minimize skipping
  timer2 values


Service Pack 16 for Emu48 Version 1.0

DEBUGGER.C
- added "MMU" and "Miscellaneous" view in debugger dialog
- added RPL exit breakpoint on A=DAT0 A, D0=D0+ 5, PC=(A) sequence
- added last instruction viewer in debugger
- renamed funtion name ViewStackWnd() to UpdateStackWnd()
- bugfix in function UpdateRegisterWnd() and OnCtlColorStatic(),
  fixed problems of register update in RUN mode
- bugfix in function OnKeyF11(), in sleep mode break hasn't worked
- bugfix in function OnLButtonUp(), register setting wasn't disabled
  in running state
- changed function NotifyDebugger(), added argument to detect RPL
  breakpoint
- bugfix in function Debugger(), code disassembler wasn't reset to
  mapped mode at startup and fixed a resource leak
- bugfix in function EditBreakpoint(), added breakpoint buffer
  overflow check at add breakpoint command

DEBUGGER.H
- extern declaration of global variables

DISASM.C
- bugfix in function disasm_1(), the C=ss, ss=C and CssEX opcodes
  showed always as A=ss, ss=A and AssEX opcodes
- bugfix in function disasm_8(), the r register in the rSRB.F fs
  opcodes and the opcode lenght was wrong

EMU48.C
- new function CopyItemsToClipboard(), copy selected items from
  listbox to clipboard, extracted from function Disasm()
- added HP38G64K stuff to function UpdateWindowStatus() and
  SettingsProc()
- changed function Disasm(), call function CopyItemsToClipboard()
  now

EMU48.H
- extern declaration of global functions

EMU48.RC
- added "MMU" and "Miscellaneous" part in debugger dialog
- changed copyright date in IDD_ABOUT
- changed version and copyright

ENGINE.C
- added RPL breakpoint handling
- added last instruction buffer update handling
- changed function WorkerThread(), added timer emulation in debugger
  mode
- bugfix infunction WorkerThread(), in debugger mode Chipset.pc may
  have been changed, so the FASTPTR access must be updated as well

EXTERNAL.C
- some minor changes for the HP38G64K beeper emulation

FILES.C
- added new document type for HP38G64K

IO.H
- added CARDCTL and LCR definitions

KEYBOARD.C
- bugfix in function ScanKeyboard(), update keyboard status only on
  timer running and keyboard interrupt only occur on the rising edge
  of "logic or" of IR[8:0] and not on the rising edge of each line;
  the IRX15 interrupt (ON key) is level sensitive

MOPS.C
- added function MapData() to detect the memory controller handle
  the given address, needed for function Npeek(), Nread() and
  Nwrite()
- bugfix in function MapROM(), no difference between Clarke and
  Yorke chip in DA19 bit behavior, depends on ROM size
- bugfix in function Map(), on a HP49 NCE3 may mapped to ROM
- changed function CpuReset(), reset WSM state of flash memory
- bugfix in function Npeek(), update card status register in I/O
  register area before reading and simulate an open data bus
- bugfix in function Nread(), loaded wrong bank switcher FF value
  for a HP49
- bugfix in function Nwrite(), loaded wrong bank switcher FF value
  when writing on slot2 enabled (GX only)
- changed function Nread() and Nwrite(), added Flash memory access
  detection part
- bugfix in function ReadIO(), the CARDSTATUS register (0x10F)
  return zero when card detection is disabled
- bugfix in function WriteIO(), on a HP49 force new memory mapping
  on changing the LED bit in the LCR register (0x11C)

RESOURCE.H
- added several definitions

TYPES.H
- conditional compiling of cycle counter (32bit EXE/64bit DLL)
- use position of Port2_NBanks for flash memory WSM state variable


Service Pack 15 for Emu48 Version 1.0

DEBUGGER.C
- added emulation run flag
- added notify function for emulation stopped
- added color highlighting on changed registers
- added implementation of "Step Out" (exit function)
- bugfix in function ViewMemWnd(), use the Npeek() function for
  reading memory data, so fixed some problems with reading invalid
  data from the I/O register area
- changed function OnClearAll(), changed argument to dialog handle
- bugfix in function OnDblClick(), fixed swapped nibbles after enter
  new data
- changed function OnKeyCodeWnd(), changed first argument to dialog
  handle
- bugfix in function Debugger(), removed context menu resource leaks
  and a call of GetDlgItem() with invalid arguments

DEBUGGER.H
- extern declaration of global functions
- moved WM_UPDATE definition to DEBUGGER.C

EMU48.C
- replaced __argc and __argv variables by process variables
- replaced INI file handling part
- changed address in GPL license string
- added HP38 stuff to function UpdateWindowStatus() and
  SettingsProc()
- changed function SettingsProc(), replaced Port1_Writeable variable
- bugfix in function OnViewReset(), some registers wasn't reset,
  call reset function now
- bugfix in function OnDestroy(), moved functions SwitchToState()
  and WriteSettings() to main program, because emulation thread may
  not run and settings aren't read so far when main window close
- removed function FlushMessages() and all references, because it's
  useless and references made trouble at a WM_QUIT message
- removed several other resource leaks on error conditions
- made function MainWndProc() public

EMU48.DSP
- renamed serial.h into io.h in header definition
- added settings.c sources

EMU48.H
- extern declaration of global variable and functions

EMU48.RC
- changed language definition of dialog IDD_BREAKEDIT
- added Menuitem Debug "Step Out" in debugger menu
- changed version and copyright

ENGINE.C
- renamed header Serial.h into io.h
- renamed wShutdnWake to bShutdnWake in Chipset structure
- moved bRealSpeed variable and make it public
- solved bRealSpeed name conflict
- added DWORD casting from Chipset.cycles variable
- added part for debugger function "Step Out"
- changed notify function for update debugger window

EXTERNAL.C
- some minor changes for the HP38 beeper emulation

FILES.C
- added new document type for HP38G
- replaced __argc and __argv variables by process variables
- added function CrcRom() to get a fingerprint of the ROM
- changed function NewDocument(), deleted Port1_Writeable variable,
  isn't used any more
- bugfix in function OpenDocument(), in restore situation add port2
  only at HP48 emulation
- changed function OpenDocument(), check fingerprint of ROM
- changed function SaveDocument(), update fingerprint of ROM
- changed function SaveBackup(), save window position as well
- bugfix in function RestoreBackup(), lost port2 of a HP48

KEYBOARD.C
- renamed wShutdnWake to bShutdnWake in Chipset structure
- added DWORD casting from Chipset.cycles variable

KLM.C
- bugfix in function InitKML(), on a KML script syntax error only
  continue with the Cancel button

IO.H
- old SERIAL.H, added I/O definitions

MOPS.C
- renamed header Serial.h into io.h
- renamed funtion CRC() to UpCRC()
- changed function UckBit(), removed unused variable
- changed function MapP1(), use cards_status instead of
  Port1_Writeable variable
- bugfix in function RomSwitch(), lached address line A6 was always
  zero -> no access to upper half of flash memory
- added function CpuReset() to set cpu registers after reset
- changed function Npeek(), return data from I/O register area as
  well now (for debugger support)
- bugfix in function Nread(), reading from the timer2 MSB register
  (0x13F) updates the CRC register (0x104-0x107)
- bugfix in function ReadIO(), update the USRQ bit in the SRQ1
  register (0x118) after reading the RBR register (0x114,0x115)
- bugfix in function ReadIO(), update the NINT2 and NINT bits in the
  SRQ2 register (0x119)
- bugfix in function WriteIO(), update the USRQ bit in the SRQ1
  register (0x118) after writing the IOC register (0x110) or the
  TBR register (0x116,0x117)

OPCODES.C
- added DWORD casting from w.cycles variable
- checked all undocumented cpu cycles and removed remarks
- bugfix in function o08(), o09(), o0A(), o0B(), o3X(), o8086n(),
  o8087n(), o808An(), o808Bn() and o8Ed4(), changed number of cpu
  cycles

RESOURCE.H
- added several definitions

SERIAL.C
- renamed header Serial.h into io.h
- renamed wShutdnWake to bShutdnWake in Chipset structure
- moved initialize/remove of Critical Section handler from the
  function CommOpen() and CommClose() to main program
- added function UpdateUSRQ(), implements USRQ bit handling
- bugfix in function CommTransmit(), added LPB bit emulation in the
  TCS register (0x112) and USRQ bit emulation in the SRQ1 register
  (0x118)
- bugfix in function CommReceive(), only reject reading if com port
  is closed and not whole operation and added USRQ bit emulation in
  the SRQ1 register (0x118)

SERIAL.H
- renamed to IO.H

SETTINGS.C
- new modul to handle the INI file

TIMER.C
- removed timer I/O definitions, replaced by include file IO.H
- replaced INT define with INTR (conflict with C variable type INT)
- renamed wShutdnWake variable to bShutdnWake
- bugfix in function CheckT1() and CheckT2(), added TSRQ bit
  emulation in the SRQ1 register (0x118)

TYPES.H
- changed variable type of wPosX and wPosY, position data is signed
- use position of wShutdnWake for wRomCrc
- use position of dwKdnCycles for cycles variable
- use position of Port1_Writeable for MSB of cycles variable
- use position of Port2_Writeable for dwKdnCycles variable
- use old position of the cycles variable for bShutdnWake


Service Pack 14 for Emu48 Version 1.0

COLOR.H
- new header with color definitions

DDESERV.C
- added different files headers for HP48/49

DEBUGGER.C
- new modul for debugger routines

DEBUGGER.H
- header file for debugger part

DISASM.C
- changed function append_r_addr() and append_pc_comment(), relative
  jumps now can viewed with the target address instead of a relative
  offset and target address in remark; implemented a local variable
- bugfix in function rn_port2(), calculated port2 mask was wrong
- added HP49 stuff to function rn_port2()

EMU48.DSP
- added debugger.c sources

EMU48.C
- added debugger menu entry
- added HP49 stuff to the disassembler
- added HP49 stuff to function SettingsProc()
- changed function OnViewSettings(), removed port2 open/close
  handling, now done in the document handler
- deleted unused function OnSysClose()
- bugfix in function Disasm(), in entry IDC_DISASM_PORT2 the highest
  useable address was always wrong

EMU48.RC
- added Menuitem Tools "Debugger..."
- changed version and copyright

EMU48.H
- extern declaration of global variable and functions

ENGINE.C
- moved inline function FASTPTR() to OPS.H
- added debug part in main emulation loop

EXTERNAL.C
- some minor changes for the HP49 beeper emulation

FILES.C
- added new document type for HP49
- change in function WriteStack(), accept HP49 binary files now
- the port2 open/close handling is now controlled by the document
- several changes in port2 handling, the HP49 use an internal 128KB
  RAM card instead of the external RAM card of the HP48
- changed function UnmapPort2(), added return value for unmap
  success
- changed function PatchRom(), longer addresses than 5 nibbles can
  be used now
- changed function OpenDocument(), restore HP49 ROM bank selection
  after document load
- changed function InitKML(), removed initialization of MMU

KEYBOARD.C
- changed function ScanKeyboard(), added a flag for wake up from
  SHUTDN mode

KML.C
- bugfix in function PressButton(), if button already pressed, do
  nothing -> fixed a draw problem with KML button type 3
- bugfix in function RefreshButtons(), KML type 3 buttons, must
  complete redraw before refresh them

MOPS.C
- added HP49 MMU parts
- bugfix in function ReadIO(), update the UCK bit in the BAU
  register (0x10D)

OPS.H
- moved inline function FASTPTR() from ENGINE.C to header file

RESOURCE.H
- added several definitions

RPL.C
- added HP49 memory pointers
- added HP49 flash pointer object (=DOFASHP)
- added HP49 precision integer object (=DOINT)
- added HP49 precision real object (=DOLNGREAL)
- added HP49 precision complex object (=DOLNGCMP)
- added HP49 symbolic matrix object (=DOMATRIX)
- added HP49 aplet object (=DOAPLET)
- added HP49 mini font object (=DOMINIFONT)

SERIAL.C
- changed function SerialThread(), added a flag for wake up from
  SHUTDN mode

TIMER.C
- changed functions CheckT1() and CheckT2(), added a flag for wake
  up from SHUTDN mode

TYPES.H
- use position of the wUnused1 variable for SHUTDN wake up flag


Service Pack 13 for Emu48 Version 1.0

DISASM.C
- bugfix in function disasm_8(), the HS=0 n opcode was showed wrong

EMU48.DSP
- added fetch.c and opcodes.c sources

EMU48.C
- bugfix in function Disasm() and About(), handled messages must
  return TRUE

EMU48.H
- added function prototypes

ENGINE.C
- moved several definitions to OPCODE.H
- made function AdjKeySpeed() public
- replaced opcode handling include files by a function call, decoder
  now works with tables instead of case switching
- deleted unused code parts in modul

FETCH.C
- new modul with opcode dispatcher

FETCH.H
- file deleted, replaced by FETCH.C

FILES.C
- bugfix in function PatchRom(), no correct handling of remarks,
  interpreter failed on lower case hex digits in arguments

OPCODES.C
- new modul with opcode implementation

OPCODES.H
- file content changed, replaced by OPCODES.C


Service Pack 12 for Emu48 Version 1.0

DISPLAY.C
- minor change in function UpdateMainDisplay()
- deleted remarked global variables and unused code parts in
  function WriteToMainDisplay()

EMU48.C
- added auto event object for controlling the CPU thread

EMU48.H
- removed extern declaration of variable
- extern declaration of global variable and functions

ENGINE.C
- new function CheckDisp(), synchronize display update now with the
  line update counter
- replaced all ResumeThread() with SetEvent() calls
- replaced all SuspendThread() with WaitForSingleObject() calls

KEYBOARD.C
- replaced all ResumeThread() with SetEvent() calls
- deleted unused code parts in function ScanKeyboard()

MOPS.C
- flag for updating display area is now global
- new function GetLineCounter() for getting the actual display
  refresh line
- changed function WriteIO(), display isn't updated here any more
- use serial definitions from "serial.h" now
- deleted remarked functions Nread2(), Nwrite2(), Nread5() and
  Nwrite5()

SERIAL.C
- replaced all ResumeThread() with SetEvent() calls

TIMER.C
- bugfix in function SetT1(), loading same timer value doesn't
  restart timer period
- replaced all ResumeThread() with SetEvent() calls


Service Pack 11 for Emu48 Version 1.0

EMU48.C
- removed cards status definitions
- bugfix in function OnFileExit(), continuing the emulation failed
  after pressing the "Cancel" button in save dialogbox
- removed function OnSysClose(), no difference to function
  OnFileExit()
- changed message implementation WM_SYSCOMMAND/SC_CLOSE to function
  OnFileExit()

EMU48.DSP
- added preprocessor definition "STRICT" to project

EMU48.H
- moved cards status definitions from EMU48.C to header file
- extern declaration of global function

EMU48.RC
- changed version and copyright

ENGINE.C
- bugfix in function WorkerThread(), after changing the port2 card
  status the memory mapping must be updated
- update HP48 time now in function WorkerThread() and not in
  function StartTimers()

FILES.C
- changed function MapPort2(), dwPort2Mask now shows the valid
  address lines of the bank switcher FF

MOPS.C
- bugfix in function MapP1() and MapP2(), clear mapping area if port
  is configured but not plugged
- bugfix in function MapP2(), odd bank switch values loaded the
  wrong page of port2 and bank switcher must be disabled on S(X)
  versions
- changed function Nread(), simulate an open data bus now (fix
  value for even and odd address)
- bugfix in function Nread(), don't change bank switcher value if
  RAM or CE2 is on the same address, because these modules have
  higher access priority
- bugfix in function Nwrite(), bank switching now works with the
  'datx=r fsd' command

TIMER.C
- renamed function SetAccesstime() to SetHP48Time() and made
  function public
- removed update of HP48 time in function StartTimers()


Service Pack 10 for Emu48 Version 1.0

DISPLAY.C
- use only one pattern field for all display resolutions
- added new display contrast scheme
- bugfix in function WriteToMainDisplay(), calculated source memory
  address was illegal memory pointer

EMU48.C
- bugfix in functions OnFileExit() and OnSysClose(), stop emulation
  thread before saving emulation data
- changed function Disasm(), changed list box from single to multi
  selectable items, added button to copy selected items to
  clipboard
- moved function DragAcceptFiles() to WM_CREATE handler
- added function DragAcceptFiles() to WM_DESTROY handler
- allow second command line parameter as port2 filename
- added Critical Section initialization

EMU48.H
- removed extern declaration of global function
- extern declaration of global variable and functions

EMU48.RC
- added button in dialog IDD_DISASM
- reinsert button IDC_UPDATE in dialog IDD_CHOOSEKML
- changed version and copyright

ENGINE.C
- functions CheckSerial() and AdjustSpeed() are inline coded now
- new function UpdateKdnBit() for updating the KDN bit by the 1ms
  keyboard interrupt handler

FILES.C
- added new function CrcPort2() to get a fingerprint of port2
- changed function OpenDocument(), check fingerprint of port2
- changed function SaveDocument(), update fingerprint of port2

KEYBOARD.C
- changed function Keyboard_GetIR() to static
- bugfix in function ScanKeyboard(), added fixes for the KDN bit
  implementation and update keyboard interrupt pending flag when
  1ms keyboard handler is disabled

KML.C
- bugfix in function ParseLine(), caused memory leaks when an error
  occured
- bugfix in function ParseLines(), fixed a windows program abort on
  some KML script or line include errors
- bugfix in function ParseBlock(), abort parsing on KML script
  errors
- bugfix in function ParseBlocks(), fixed a windows program abort on
  block include errors
- bugfix in function FreeLines(), caused memory leaks when different
  argument types are used in a line

MOPS.C
- added new function IOBit()
- bugfix in function ReadIO(), update the KDN bit in the SRQ2
  register (0x119) before reading

OPCODES.H
- bugfix in A=IN and C=IN command, update KDN bit in the SRQ
  register
- bugfix in all r=r+CON fs,n and r=r-CON fs,n opcodes, they always
  work in HEX mode
- changes in INTON, INTOFF and RTI for KDN bit implementation
- changed RTI command, execute pending key interrupt only if enabled
- changed RSI command, set key interrupt pending flag also when 1ms
  keyboard handler is disabled
- bugfix in INTON command, execute interrupt if key interrupt is
  pending

OPS.H
- added new inline functions Ninc16() and Ndec16()

RESOURCE.H
- added/changed definitions
- removed ID_HELP_REGISTER

TYPES.H
- use position of the uUnused1 variable for fingerprint of port2
- use position of the Port2_Size variable for cpu cycles at start of
  1ms key interrupt handler


Service Pack 9 for Emu48 Version 1.0

DISASM.C
- changed output of HP Mnemonic P=n

DISPLAY.C
- bugfix in function UpdateMainDisplay(), with off display and Zoom
  > 1 only a part of the display was cleared
- changed function UpdateMenuDisplay(), use a common pointer offset
  calculation and display output part now

EMU48.C
- changed function OnViewCopy(), changed screen clipboard format
  from CF_BITMAP to CF_DIB
- bugfix in function OnViewReset(), must unconfig MMU on reset too
- changed function OnAbout(), don't stop emulation while viewing
  About box
- moved initialize/remove of the Critical Section part from message
  handler to main program

EMU48.H
- removed extern declaration of global variables and functions

EMU48.RC
- changed design of IDD_ABOUT
- changed version and copyright

ENGINE.C
- bugfix in function FASTPTR(), code execution is possible in IO
  register area as well

FETCH.H
- removed jump to extension opcode 81B0

FILES.C
- removed global variable

MOPS.C
- bugfix in function MapP0(), MapP1(), MapP2(), MapBS(), mapping
  area may have holes
- bugfix in function MapBS(), no read from ROM at mapped bank
  switch control area
- bugfix in function MapP2(), if G(X) ROM select port2 only if
  DA19=0 and BEN=1, now the saved bank switch control information is
  used
- bugfix in function MapROM(), if G(X) ROM and DA19=0 (ROM disabled)
  then mirror lower ROM at #80000 (AR18=0)
- bugfix in function Nread(), bank switching now works with every
  'r=datx fsd' command in the complete mapped bank switch control
  area, an unconfigured bank switch area is now disabled and the
  GX bank switch information (content of Flipflop) is saved now
- bugfix in function Nwrite(), at some conditions no update of the
  display area and IO area couldn't be unconfigured
- removed functions Nread2(), Nwrite2(), Nread5() and Nwrite5()
- bugfix in function ReadIO(), several minor fixes in the LINECOUNT
  register (0x128,0x129) emulation
- bugfix in function ReadIO(), the TIMER1CTRL and TIMER2CTRL
  register (0x12E,0x12F) must be updated before reading
- bugfix in function WriteIO(), don't clear the XTRA bit in the
  TIMER1CTRL register (0x12E) while setting
- bugfix in function WriteIO(), after setting new TIMER1CTRL and
  TIMER2CTRL register (0x12E,0x12F) values the control bit
  condition must be checked
- bugfix in function WriteIO(), handle start/stop of the LINECOUNT
  register when the DON bit in the DISPIO (0x100) register has
  changed
- bugfix in function WriteIO(), force new ROM mapping if DA19 in
  the MSB LINECOUNT (0x129) register has changed on a G(X) ROM

OPCODES.H
- Nwrite2() replaced by Nwrite()
- Nwrite5() replaced by Nwrite()
- Nread2() replaced by Nread() for the BS 'r=datx fsd' bugfix
- Nread5() replaced by Nread() for the BS 'r=datx fsd' bugfix
- bugfix in RTI command, generate interrupt if ON key is pressed
- bugfix in RSI command, don't set key interrupt pending flag if
  INTOFF command is active
- removed extension opcode 81B0

TIMER.C
- removed assertions in function CheckT1() and CheckT2() that the
  timers must run
- moved initialize/remove of Critical Section handler from the
  function StartTimers() and StopTimers() to main program for bugfix
  the problems with the Critical Section area of the function
  ReadT1() and ReadT2() when the timers are stopped
- bugfix in function ReadT2(), timer2 was always running

TYPES.H
- use Port2_Bank variable to save state of GX port2 Flip-Flop


Service Pack 8 for Emu48 Version 1.0

DISASM.C
- changed function read_nibble() to disassemble modules
- added new mapping functions for function read_nibble()
- bugfix in function append_imm_nibble(), HP Mnemonic hex number
  was showed as decimal number

EMU48.C
- changed variable types of function WinMain()
- added "drag and drop" implementation for HP objects
- added some features to function Disasm()
- removed all parts handled with the global variables bAccurateTimer
  and uT1Period
- bugfix in function Disasm(), button "Next Address" caused a
  windows program abort if the given address was outside of the
  cpu address area
- bugfix in function UpdateWindowStatus(), Menuitem Tools
  "Disassembler..." must be disabled when document file is closed
- bugfix in function OnStackPaste(), fixed problem when HP is off
- bugfix in function OnObjectLoad(), solve problem when calculator
  is off and bugfixed method to switch emulator into sleep state
- bugfix in function OnObjectSave(), bugfixed method to switch
  emulator into sleep state

EMU48.DSP
- added library shell32.lib

EMU48.H
- bugfix of variable hApp, used wrong type
- extern declaration of global variables
- removed extern declaration of global variables
- added some disassembler defines

EMU48.RC
- added my name to dialog IDD_ABOUT
- added some radio buttons to dialog IDD_DISASM
- removed Timers part from dialog IDD_SETTINGS
- changed version and copyright

ENGINE.C
- added global variable
- removed global variable
- bugfix in function AdjKeySpeed(), slow down whole emulation now,
  when a key is pressed

KEYBOARD.C
- changed key event signal in function KeyboardEvent()

MOPS.C
- bugfix in function Uncnfg(), I/O mapped address area begin and end
  on a 64 nibble boundary, Chipset.IOBase must be saved for the C=ID
  command
- bugfix in function C_Eq_Id(), don't shift Chipset.IOBase for ID
- changed function Nread(), Nwrite(), Nread2(), Nwrite2(), Nread5()
  and Nwrite5(), test Chipset.IOCfig as well for mapping

OPCODES.H
- removed InfoMessage in BUSCB, BUSCC and BUSCD opcode, emulate as
  NOP
- bugfix in RTI command, don't return from interrupt at timer1/2
  interrupt condition
- bugfix in SHUTDN command, don't shut down at timer1/2 wake up
  condition
- bugfix in RSI command, detection of interrupt is in service was
  wrong

PCH.H
- added include shellapi.h

RESOURCE.H
- added several definitions
- removed IDC_BROWSEDIR, IDC_REFRESH, IDC_USEMMTIMER, IDC_T1PERIOD,
  IDC_T1DEFAULT

TIMER.C
- removed global variables bAccurateTimer and uT1Period, replaced by
  a static variable and a constant
- changed function CheckT1() and function CheckT2(), use function
  parameter for the timer value now
- changed function ReadT1() and function ReadT2(), update timer
  control bits after reading
- bugfix in function RescheduleT2(), execute timer2 event when MSB
  of timer changed to update timer2 control register
- bugfix in function TimeProc(), waiting for timer2 overrun prevents
  access to the timer2 value from the cpu emulation thread and reset
  of variable uT2TimerId was outside synchronized area
- bugfix in function CheckT1() and function CheckT2(), fixed SRQ bit
  handling
- bugfix in function SetT1() and function SetT2(), update timer
  control bits and check for interrupts after setting
- bugfix in function StopTimers() and function SetT2(), killing
  timer1 or timer2 in a Critical Section part may cause a dead lock
  with the timer callback function (function timeKillEvent() waits
  for the finish of the corresponding callback function, but the
  callback function is locked by the Critical Section handler)


Service Pack 7 for Emu48 Version 1.0

DISASM.C
- new modul with disassembler

DISPLAY.C
- bugfixes in function UpdateDisplayPointers(), next line offset was
  sometimes wrong and the addresses of the main display area were
  wrong when next line offset was negative
- new implementation of function WriteToMainDisplay(), fixed several
  bugs (no output when next line offset was negative, sometimes
  problems with left margin values > 4 and garbage on display)
- bugfix in function WriteToMenuDisplay(), menu wasn't updated
  when next line offset was negative

EMU48.C
- added global variable
- added semaphore handling for key scan
- added disassembler dialog box and menu entry
- bugfix in function OnViewCopy(), the clipboard wasn't closed when
  EmptyClipboard() failed
- bugfix in function OnKeyDown(), suppress autorepeat feature of
  keyboard

EMU48.DSP
- added disasm.c source

EMU48.H
- extern declaration of global variables
- added function prototypes

EMU48.RC
- added Menuitem Tools "Disassembler..."
- changed version and copyright

ENGINE.C
- added global variable
- bugfix in function AdjKeySpeed(), exit delay loop when a key
  event has occured and use Chipset.Keyboard_Row[] instead of
  Chipset.in to detect a pressed key

FILES.C
- function LoadBitmapFile() save old hWindowDC palette now
- bugfix in function SaveDocumentAs(), previous opened file wasn't
  closed

KEYBOARD.C
- bugfix in function ScanKeyboard(), code part must be synchronized
  and an interrupt was only generated when all input lines has been
  low (no keys pressed)
- added parameter to function ScanKeyboard(), parameter indicates if
  the Chipset.in interrupt register should be reset
- added key event signal in function KeyboardEvent()
- workaround in function KeyboardEvent(), hold key state for a
  definite time

KML.C
- bugfix in function ParseLines() and ParseBlocks(), allocated
  memory for string parameter of include token wasn't freed
- bugfix in function KillKML(), palette resource couldn't freed,
  when hWindowDC was open

MOPS.C
- bugfix in function WriteIO(), the Chipset.start1 variable only
  was updated when five nibbles at the DISPADDR register (0x120)
  has been written
- bugfix in function WriteIO(), the Chipset.loffset variable only
  was updated when three nibbles at the LINEOFFS register (0x125)
  has been written
- bugfix in function WriteIO(), the Chipset.lcounter variable only
  was updated when the MSB of the LINECOUNT register (0x129) has
  been written
- bugfix in function WriteIO(), the Chipset.start2 variable only
  was updated when five nibbles at the MENUADDR register (0x130)
  has been written
- bugfix in function ReadIO(), the LINECOUNT register (0x128-0x129)
  is a down counter

OPCODES.H
- changed RSI command for thread synchronize

RESOURCE.H
- added several definitions

TIMER.C
- bugfix in function SetAccesstime(), sync time values must always
  save in port0 and not at the mapped address
- bugfix in function RescheduleT2(), used wrong event time when
  reference point for timer2 value wasn't saved


Service Pack 6 for Emu48 Version 1.0

DDESERV.C
- bugfix in XTYP_POKE part, fixed problem when HP is off

DISPLAY.C
- added X4 display size parts

EMU48.C
- changed function OnViewCopy() for X4 display size
- init lFreq variable for high performance counter here now

EMU48.H
- changed type and name of bLcdDoubled to nLcdDoubled
- extern declaration of global variables

EMU48.RC
- changed version and copyright

EXTERNAL.C
- changed high limit of frequency, use SX specification
- added high limit of beep duration, use SX specification
- estimate cpu cycles for beep time
- adjust some cpu flags and registers modified by the original code

KML.C
- changed TOK_ZOOM implementation in function InitLcd()

MOPS.C
- changed implementation of registers 0x128-0x12D in function
  ReadIO()

OPCODES.H
- update field select table in "EXTENSION opcode o81B1"

TIMER.C
- moved static lFreq variable to modul EMU48.C


Service Pack 5a for Emu48 Version 1.0

EMU48.C
- bugfix in OnPaint(), must redraw annunciators


Service Pack 5 for Emu48 Version 1.0

DDESERV.C
- return DDE error if emulator state couldn't change to sleep state

EMU48.C
- added Copy/Paste Clipboard data from/to stack (strings only)

EMU48.H
- extern declaration of global variables
- added function prototypes

EMU48.RC
- added Menuitem Edit "Copy String" and "Paste String"
- fixed multiple use of accelerator keys
- changed version and copyright

ENGINE.C
- added function WaitForSleepState(), wait for the SHUTDN command
  -> stack isn't in use (when the clock is displayed, a time string
  was sometimes on stack instead of the loaded item), then switch to
  state 3 (Sleep state)
- added function AdjKeySpeed(), slow down key repetition

FILES.C
- save mapping size of port2 in global variable
- optimized calculation of bank switch mask in MapPort2()

MOPS.C
- bugfix in MapP0(), data offset was wrong
- bugfix in MapP1(), data offset was wrong
- bugfix in MapP2(), data offset was wrong and real size of modul
  was zero
- bugfix in MapBS(), wrong pointer in mirrored data page
- bugfix in MapROM(), wrong pointer in mirrored data page
- bugfix in MapP0(), MapP1(), MapP2(), MapBS(), Config(), Uncnfg(),
  mapped address area begin and end on a mapping size boundary
- bugfix in Map(), the access priority of CE1 and CE2 was wrong
  (SX: port1<->port2, GX: port1<->bank select)
- bugfix in Uncnfg(), the unconfig priority of CE1 and CE2 was wrong
  (SX: port1<->port2, GX: port1<->bank select)
- Map(), size optimized implementation
- Config(), size optimized implementation
- Uncnfg(), size optimized implementation
- C_Eq_Id(), size optimized implementation

OPCODES.H
- insert key slow down in A=IN and C=IN

RESOURCE.H
- added ID_STACK_COPY and ID_STACK_PASTE


Service Pack 4 for Emu48 Version 1.0

EMU48.C
- added code for port1 disable
- changed the default box setting of "Accurate Timer" in checked

EMU48.RC
- added item "Port 1 is Plugged"
- changed version and copyright

KEYBOARD.C
- bugfixes in 1 ms keyboard interrupt handler, keyboard interrupts
  are generated at one of the following conditions: pressing the ON
  key (non maskable), pressing a key detected by the 1 ms keyboard
  scan when enabled (maskable), detect a key after an OUT command
  or after the RSI command when a bit in the IN register is set

MOPS.C
- bugfix in WriteIO(), TIMER1 was loaded with the current value

OPCODES.H
- bugfix in INTON and INTOFF command, they aren't able to generate a
  keyboard interrupt
- bugfix in RSI command, call interrupt routine or set interrupt
  pending flag if a bit of the IN register is high
- RTI command changed, doesn't handle ON key here
- added InfoMessage for BUSCB command

RESOURCE.H
- added IDC_PORT1EN

SERIAL.C
- bugfix, synchronize threads for receive char

TIMER.C
- changed function CheckT1(), quite similar to V1.0 with minor fixes
- changed function CheckT2(), minor fixes
- bugfix in function SetT1(), decrement value after full period,
  don't check for interrupts after setting
- bugfix in function SetT2(), don't check for interrupts after
  setting


Service Pack 3 for Emu48 Version 1.0

DDESERV.C
- new modul for DDE communication

EMU48.C
- init DDE callback function and name service
- added section [Serial] in INI-File
- added combobox update in dialog box handler

EMU48.DSP
- new makefile for MSVC 5.0

EMU48.H
- extern declaration of global variables
- added function prototypes

EMU48.RC
- added block "Serial"
- changed version and copyright

ENGINE.C
- bugfix in SetSpeed(), may enable "realspeed" with illegal
  reference counts
- bugfix in SwitchToState(), switching from "Invalid" or "Sleep"
  state into another, ResumeThread() may called before
  SuspendThread() (unsynchronized threads)
- added code for serial device

FILES.C
- separated stack writing code from LoadObject() to WriteStack()

MOPS.C
- added global variables
- changed code in ReadIO() for BAUD, IO CONTROL, RCS, TCS, RBR,
  SREQ?, IR CONTROL for serial support
- changed code in WriteIO() for BAUD, IOC, TBR, IRC for serial
  support

RESOURCE.H
- added IDC_WIRE and IDC_IR

SERIAL.C
- new modul for serial support

SERIAL.H
- new header with serial definitions


Service Pack 2 for Emu48 Version 1.0

DISPLAY.C
- bugfix in UpdateMainDisplay(), update display even if it's off

EMU48.C
- added section [Emulator] in INI-File
- added checkbox update in dialog box handler

EMU48.H
- extern declaration of variables

EMU48.RC
- added item "Authentic Calculator Speed"
- changed version and copyright

ENGINE.C
- added code to slow down emulation

RESOURCE.H
- added IDC_REALSPEED


Service Pack 1 for Emu48 Version 1.0

DISPLAY.C
- red and blue has been changed in SetLcdColor()
- use display contrast value from chipset and not the default
  value in CreateLcdBitmap()
- use semaphores to avoid GDI trouble with NT in
  UpdateMainDisplay(), UpdateMenuDisplay(), WriteToMainDisplay()
  and WriteToMenuDisplay()
- execute ResizeWindow() only if window exist
- bugfix in draw part of WriteToMainDisplay()

EMU48.C
- version changed
- added global variable
- added semaphore handling to avoid GDI trouble with NT that prevent
  graphic update sometimes
- added message for right mouse key
- bugfix of a parameter of GetPrivateProfileString()
- removed SwitchToState() and KillKML() at end of program
- eliminated memory leak caused by SetWindowTitle()
- function OnPaint() may returned without calling EndPaint()
- execute UpdateWindowStatus() only if window exist

EMU48.H
- extern declaration of global variable
- added VOID as parameter in function prototypes

EMU48.RC
- added/changed version and copyright

EXTERNAL.C
- bugfix, check if beeper enabled
- changed beeper emulation, more realistic with Windows NT

FILES.C
- avoid an open handle and adjust file attributes in
  LoadBitmapFile()
- the WORD to int conversion used in function SetWindowPos()
  failed; windows with negative position data wouldn't pop up with
  NT (NT GDI is 32 bit coded, Windows 95 mostly 16 bit -> the
  failed conversion doesn't matter with Windows 95)
- bugfix in close file handling of function OpenDocument()
- InitKML() need chipset for contrast setting in RestoreBackup()

KML.C
- added global variables
- use semaphores to avoid GDI trouble with NT in DrawButton() and
  DrawAnnunciator()
- added function ReleaseAllButtons()
- changed mouse handling for pressing more than one key

OPCODES.H
- added S(X) oscillator cycles for each command
- bugfix in A=IN and C=IN command to emulate a saturn bug, on real
  machines the assembler commands only work on an even address
- bugfix in all r=r+CON fs,n and r=r-CON fs,n opcodes to emulate a
  saturn bug, on real machines commands with a single field selector
  cause an overrun to other fields of the register
- NFdbl() replaced by NFadd()
- Ndbl() replaced by Nadd()

OPS.H
- NFinc() definition changed
- NFdec() definition changed
- NFdbl() definition removed
- Ndbl() function removed
- changed implementation of Ninc(), added offset variable
- changed implementation of Ndec(), added offset variable
- optimized implementation of Nadd()
- optimized implementation of Nsub()
- optimized implementation of Nrsub()
- optimized implementation of Nnot()
- optimized implementation of Nneg()

TIMER.C
- added global variables, defines and constants
- added function SetAccesstime() for setting the correct time
- bugfix in AbortT2() which prevent updating the clock sometime
- changed implementation of CheckT1() to correct blink frequency
  of input cursor
- changed implementation of ReadT2() using a high resolution
  timer to minimize skipping timer2 values
- bugfix in SetT2(), always check timer2 control register
- solved a problem with timer2 counts greater than 16.67 min.
- bugfix of wrong timer1/2 values (unsynchronized threads)

TYPES.H
- use position of the t2_ticks variable for oscillator cycles


(c) by Christoph Gießelink, cgiess@swol.de