Service Pack 30 for Emu48 Version 1.0

DEBUGGER.C
- bugfix in function Debugger(), used wrong debugger window position
  when task bar was on top or left side
- added implementation of "Write-Only Register" dialog box

DDESERV.C
- added io.h in header definition
- removed usage of Chipset.dispon variable

DISPLAY.C
- added sources of gray scale emulation (experimental)
- replaced the LCD1_ROW by the LCD_ROW definition and the use of the
  LCD2_ROW and the LCD3_ROW definitions by a calculation base on
  LCD_ROW
- changed macro LINES(), added brackets forcing operator priority
- changed BITMAPINFO color table variable type from DWORD to RGBQUAD
- changed LCD bitmap from 64 palette entries to the number of used
  colors in the LCD area, so function UpdateContrast() do not change
  the drawing patterns to a new palette entry, it change the palette
  itself now
- bugfix in function UpdateContrast(), switch palette to LCD off
  background color if display is off
- bugfix in function DestroyLcdBitmap(), contrast palette wasn't
  restored to startup colors
- changed function WriteToMainDisplay(), used wrong sizeof argument
  to get the 4 byte x-multiplier in the calculation of the memory
  position in the LCD bitmap
- bugfix in function StartDisplay(), the VBL counter of a switched
  on display starts at the LINECOUNT (0x128,0x129) register content

EMU48.C
- removed usage of Chipset.dispon variable
- bugfix in function SetCommList(), used wrong NO_SERIAL string
  definition for UNICODE mode
- bugfix in function OnDestroy(), call function SwitchToState() only
  if CPU emulation thread is running
- bugfix in function OnViewCopy(), clipboard contained wrong data
  when left display margin was unequal to zero

EMU48.H
- changed prototype of function StartDisplay()
- extern declaration of global function

EMU48.RC
- fixed misspellings "hexdezimal" to "hexadecimal"
- added "Write-Only Register" dialog
- added Windows XP manifest resource
- changed version and copyright

EMU48.XML
- manifest file for Windows XP

ENGINE.C
- changed function WorkerThread(), added parameter to StartDisplay()
  function call

FILES.C
- bugfix in function NewDocument(), OpenDocument() and
  RestoreBackup(), used wrong window restore position when task bar
  was on top or left side
- bugfix in function SaveBackup(), get workspace instead of screen
  coordinates of main window
- changed function LoadObject(), changed text output of "load error"
  message boxes

KML.C
- changed function InitAnnunciator() and DrawAnnunciator(),
  determine the number of valid entries now from the annunciator
  array size

MOPS.C
- removed usage of Chipset.dispon variable
- bugfix in function Npeek(), fixed most of the wrong read values in
  the I/O register area
- changed function Nwrite(), added conditional gray scale compiling
  and added parameter to StartDisplay() function call
- bugfix in function WriteIO(), after changing the DON bit in
  BITOFFSET (0x100) the display contrast must be updated as well

RESOURCE.H
- added some definitions

SERIAL.C
- redesign of character transmit part, on some PC systems corrupted
  characters were sent

TIMER.C
- workaround for Win2k in function CalcT2(), when detecting a
  "negative" time use the CPU cycles for new timer2 value


Service Pack 29 for Emu48 Version 1.0

DEBUGGER.C
- bugfix in function UpdateMiscWnd(), readded trailing spaces in
  "On" text
- changed function Debugger(), replaced bDbgEnable with nDbgState
  access

DEBUGGER.H
- added new debugger state defines

DISPLAY.C
- added varaible and functions from MOPS.C
- new functions StartDisplay() and StopDisplay() to control display

EMU48.C
- added VOID as parameter in functions with no argument
- added Critical Section initialization for gray scale emulation
- changed function UpdateWindowStatus(), OnDropFiles(),
  OnStackPaste() and OnObjectLoad(), replaced bDbgEnable with
  nDbgState access
- changed function OnDropFiles(), OnFileClose(), OnStackPaste() and
  OnObjectLoad(), added debugger control

EMU48.H
- added defines for conditional gray scale compiling
- removed declaration of bDbgEnable
- extern declaration of global variables and functions

EMU48.RC
- changed version and copyright

ENGINE.C
- removed global variable bDbgEnable, replaced by a state in the
  nDbgState variable
- added new functions SuspendDebugger() and ResumeDebugger() for
  debugger control
- changed functions Debugger(), WaitForSleepState(), SwitchToState()
  and WorkerThread(), added debugger control instead of general
  debugger switching off
- changed function CheckSerial(), removed interrupt handling and
  made function public
- changed function SwitchToState() and WorkerThread(), replaced
  bDbgEnable with nDbgState access
- changed function WorkerThread(), main loop don't check status of
  serial port any more, serial port must be initialized before
  entering the RUN state now, added start/stop VBL counter at
  entering/leaving the RUN state

FILES.C
- changed function WriteStack(), minor optimization

MOPS.C
- removed variable ioc_acc
- moved variable byVblRef and the functions F4096Hz() and
  GetLineCounter() to DISPLAY.C
- changed function CpuReset(), must close serial port here
- changed function WriteIO(), control of the BITOFFSET (0x100)
  register calls now the functions StartDisplay() and StopDisplay()
  to modify the VBL counter reference
- changed function WriteIO(), changing the IOC (0x110) register
  must also update the serial port status, because this isn't
  handled in the CPU main loop any more

TIMER.C
- changed function RescheduleT2(), calculate now ceil of time delay
  to reduce checking of timer2 value without timer2 overflow


Service Pack 28 for Emu48 Version 1.0

DEBUGGER.C
- bugfix in table MemMap[], NCE3 reference in HP39/40 part was wrong
- bugfix in function SetMappingMenu(), used wrong variable type for
  UNICODE mode
- changed function UpdateMiscWnd(), removed trailing spaces in text
- new functions OnStackPush(), OnStackPop() and OnStackModify() and
  other changes for implementation of the stack context menu
- changed function OnFindOK(), minor optimizations
- changed function OnNewValue(), now returns exit condition

DISPLAY.C
- removed usage of Chipset.dispon variable

EMU48.C
- bugfix in function SetCommList(), detection of COM ports larger
  than COM9 failed
- moved shutdown of CPU emulation thread from the WinMain() to the
  OnDestroy() function to avoid trouble with closed window DC

EMU48.DSP
- added configuration "Release Unicode"
- added configuration "Debug Unicode"

EMU48.RC
- added "Stack" menu entries
- added accelerator key in "Find" dialog
- changed version and copyright

I28F160.C
- bugfix in table byQueryTab[], content of not specified offset 0x03
  is 0x02; offset 0x1B and 0x1D contain 0x30 in the real chip
- changed function WrStateE8N(), WrStateE8D() and WrState60D(), use
  device specific data from query table instead of program constants
- bugfix in function WrStateE8C(), don't set the BWSLBS bit in the
  status register on trying to set a 0 bit
- changed function WrState40D(), removed useless increment
- bugfix in function WrState30C(), don't set the ECLBS bit in the
  status register when trying to erase a lock bit with WP# = low
- changed function WrState20C() and WrState30C(), use device
  dimensions from query table now and optimized data filling part
- bugfix in function WrState60D(), the BWSLBS or the ECLBS bit in
  the status register is set when trying to modify lock bits with
  WP# = low
- bugfix in function RdStateId() and RdStateQuery(), Flash commands
  "Read Identifier Codes" and "Read Query" now behave on illegal
  address access like the original calculator

RESOURCE.H
- added definitions

SERIAL.C
- bugfix in function SerialThread(), added implementation of the RER
  bit in the RCS (0x111) register for receiver BREAK condition
- bugfix in function CommOpen(), opening COM ports larger than COM9
  failed
- bugfix in function CommTxBRK(), added LPB (Loop Back) emulation


Service Pack 27 for Emu48 Version 1.0

DEBUGGER.C
- various changes in many functions for implementation of the module
  memory view
- changed function CreateToolbar(), replaced InitCommonControlsEx()
  with InitCommonControls() function call to be compatible with the
  project version 0x0200

EMU48.C
- changed function Disasm(), can use value of external port2 size
  directly now

EMU48.RC
- added "Mapping" menu entries
- changed version

FILES.C
- changed function MapPort2(), don't limit port2 to 128KB here

I28F160.C
- bugfix in function WrStateE8N(), a "Write to Buffer" command
  failed when requesting for the buffer length

KML.C
- added VOID as parameter in function prototypes
- replaced structure names changed in KML.H into the new ones

KML.H
- changed structure names Token to KmlToken, Line to KmlLine, Block
  to KmlBlock, Button to KmlButton and Annunciator to KmlAnnunciator
  because the Line and Button definition clash with the MacOS API

MOPS.C
- changed function MapP2(), limit port2 mapping size to 128KB here

OPCODES.C
- changed function o138(), o139(), o13A(), o13B(), o13C(), o13D(),
  o13E(), o13F(), o19d2(), o1Ad4(), o1Dd2() and o1Ed4(), added big
  endian machine support (use define BIGENDIAN)

PCH.H
- added _WIN32_IE definition for project version

RESOURCE.H
- added definitions


Service Pack 26 for Emu48 Version 1.0

DEBUGGER.C
- bugfix in function ViewMemWnd(), wrong ASCII view of characters in
  text area, strings are saved in LSB, MSB order
- changed function Debugger(), save and restore debugger window
  position in session now
- bugfix in function Debugger(), missing initialization of menu
  entry CODE Object Breakpoints
- bugfix in function OnFindOK(), search for ASCII character in
  LSB, MSB order

DISPLAY.C
- bugfix in function ResizeWindow(), 'Offset' command in KML script
  section 'Background' hasn't worked

EMU48.C
- added Critical Section initialization
- bugfix in function OnPaint(), 'Offset' command in KML script
  section 'Background' hasn't worked

EMU48.H
- extern declaration of global variable and function

EMU48.RC
- changed version

FILES.C
- changed functions ResetDocument(), ResetBackup() and
  InitializeOFN(), replaced function FillMemory() with ZeroMemory()
- changed function OpenDocument(), can handle various Chipset sizes
  now

KML.C
- bugfix in function DrawButton() and ClipButton, 'Offset' command
  in KML script section 'Background' hasn't worked

MOPS.C
- bugfix function WriteIO(), when writing to the IOC (0x110)
  register a possible USRQ interrupt wasn't generated
- changed function WriteIO(), writing the RER bit of the RCS (0x111)
  register and writing the TBF bit of the TBR (0x116,0x117) register
  is thread save now
- bugfix function WriteIO(), added implementation of the BRK bit in
  the TCS (0x112) register
- changed function WriteIO(), removed NINT2 line update at writing
  TBR (0x116,0x117) register, is doing in function CommTransmit()

PCH.H
- added include ctype.h

SERIAL.C
- minimized size of PC receive buffer
- bugfix in function SerialThread(), CommOpen(), CommClose() and
  CommTransmit(), added implementation of the RER bit (only for
  framing errors) in the RCS (0x111) register and of the TBF and TBZ
  bit in the TCS (0x112) register
- new function CommTxBRK(), handle BREAK condition on Tx line


Service Pack 25 for Emu48 Version 1.0

DDESERV.C
- replaced variable type _TCHAR with TCHAR
- added some UNREFERENCED_PARAMETER statements

DEBUGGER.C
- replaced variable type _TCHAR with TCHAR
- added UNREFERENCED_PARAMETER statement
- bugfix in function UpdateCodeWnd(), used uninitialized variables
  at first call and optimized actual address searching
- changed function UpdateStackWnd(), save stack content also as
  value for easier access
- changed function OnKeyF6(), optimized getting address of selected
  item
- changed function OnKeyF8(), optimized GOSUB, GOSUBL, GOSBVL
  decoding
- replaced functions OnNOP3Break(), OnRplBreak() and
  OnInterruptsStepOverInt() with OnToggleMenuItem()
- changed function OnDblClick(), double click on stack window item
  now shows the address content in the code window
- bugfix in function InfoIntr(), variable lIndex may be used without
  having been initialized

DISASM.C
- replaced variable type _TCHAR with TCHAR
- bugfix in function disassemble(), the r=-r fs opcodes showed
  always as r=r-1 fs opcodes

DISPLAY.C
- added UNICODE support in debug output parts
- used wrong black and white RGB definition, so default display
  color was white on black background and not vice versa
- changed function UpdateContrast(), optimization

EMU48.C
- replaced variable type _TCHAR with TCHAR
- changed function CopyItemsToClipboard(), SetCommList(),
  OnStackCopy() and OnStackPaste(), added some brackets

EMU48.H
- replaced variable type _TCHAR with TCHAR
- added MapData defines
- extern declaration of global variable and function
- removed declaration of Npack() and Nunpack()

EMU48.RC
- changed properties of IDC_DEBUG_STACK
- added Menuitem Debug "CODE Objects Breakpoints" in debugger menu
- changed version and copyright

ENGINE.C
- replaced variable type _TCHAR with TCHAR
- changed function Debugger(), added DOCODE breakpoint handling

EXTERNAL.C
- added ops.h in header definition

FILES.C
- replaced variable type _TCHAR with TCHAR
- added ops.h in header definition
- changed function PatchRom(), added typecast for GCC compiler
- bugfix in function PatchRom(), lines beginning with a remark were
  sometimes decoded as a valid line
- bugfix in function MapPort2(), 32KB cards were rejected

I28F160.C
- changed table definitions fnWrState[] and fnRdState[], removed a
  CONST statement

KML.C
- replaced variable type _TCHAR with TCHAR
- changed function ParseLines(), added some brackets
- changed prototypes of function GetStringParam(), GetIntegerParam()
  and SkipLines(), fixed argument mismatch
- changed function RunLine(), added default case for GCC compiler
- changed function SkipWhite(), If() and InitKML(), removed unused
  variables
- changed function KillKML(), optimizations
- changed function DrawAnnunciator(), optimizations

KML.H
- replaced variable type _TCHAR with TCHAR

MOPS.C
- added UNICODE support in debug output parts
- added ops.h in header definition
- moved MapData defines to EMU48.H
- made function MapData() public
- changed function Npeek(), Nread() and Nwrite(), added brackets for
  better code understanding

OPCODES.C
- changed function o8Cd4() and o8Ed4(), added some spaces for better
  code understanding

OPS.H
- changed function Npack() and Nunpack(), made them static
- changed function Nneg(), added some brackets

RESOURCE.H
- added definition

RPL.C
- added ops.h in header definition
- added missing HP39/40G entries in RAM entry table

SERIAL.C
- replaced variable type _TCHAR with TCHAR
- changed function UpdateUSRQ(), added return type
- changed function CommTransmit() and CommReceive(), derivate
  interrupt generation from the state of the USRQ bit now

SETTINGS.C
- replaced variable type _TCHAR with TCHAR
- bugfix in registry macro WriteString(), used wrong data size in
  UNICODE mode
- bugfix in function GetRegistryString(), returned wrong string
  length and used wrong read buffer size in UNICODE mode

TIMER.C
- added ops.h in header definition
- changed function MAX(), had no definition of return value
- changed function RescheduleT2(), added some brackets


Service Pack 24 for Emu48 Version 1.0

DBGTOOL.BMP
- bitmap with debugger toolbar buttons

DEBUGGER.C
- added toolbar to debugger window
- changed function EnterBreakpoint(), DrawBreakpoint() and
  EditBreakpoint(), added RPL breakpoint handling
- changed function OnToggleCheck(), changed method of item redraw
- changed function EditBreakpoint(), added multiple selection for
  deleting breakpoints

DEBUGGER.H
- added new breakpoint define

DISASM.C
- bugfix in function rn_map(), handle NULL pointer pages now
- bugfix in function disasm_8(), fixed broken opcode 80810
  mnemonic

EMU48.C
- changed function SetWindowTitle(), optimization

EMU48.DSP
- added library comctl32.lib

EMU48.RC
- added debugger toolbar
- added RPL breakpoint in "Enter breakpoint" dialog
- changed version and copyright

ENGINE.C
- changed function Debugger(), added RPL breakpoint handling

PCH.H
- added include commctrl.h

RESOURCE.H
- added definitions


Service Pack 23 for Emu48 Version 1.0

DDESERV.C
- replaced numbers with state machines defines

DEBUGGER.C
- new function DisableMenuKeys(), replace menu item disable in
  function OnKeyF5() and OnKeyF9()
- bugfix in function StrToReg() and OnLButtonUp(), used ASCII
  instead of a member function of TCHAR.H
- changed function OnLButtonUp(), skip automatically disabled
  windows
- bugfix in function OnKeyF9(), "Run to Cursor" menu item wasn't
  disabled

DISASM.C
- bugfix in function disasm_8(), illegal opcodes beginning with 8081
  crashed emulator, illegal opcodes beginning with 818f were shown
  as r=r+CON fs,n and r=r-CON fs,n opcodes, illegal opcodes
  beginning with 819f were shown as rSRB.F opcodes

EMU48.C
- replaced numbers with state machines defines
- moved the ShowWindow() call in main program behind the state file
  load to avoid viewing the window at the standard startup position

EMU48.RC
- changed version and copyright

ENGINE.C
- replaced numbers with state machines defines
- bugfix in function Debugger(), checked wrong data breakpoint
  addresses in connection with the P,WP,XS,S,M fields

FILES.C
- bugfix in function SaveDocument(), when the emulator window is
  minimized the wrong window position was saved in the Chipset
  structure

IO.H
- changed LINECOUNT MSB definitions

KEYBOARD.C
- replaced numbers with state machines defines

KML.C
- replaced numbers with state machines defines

MOPS.C
- bugfix in function CpuReset(), BS-FF must be cleared as well

OPCODES.C
- bugfix in function o807(), added BS-FF reset handling
- removed function o_invalid()

OPCODES.H
- removed prototype of function o_invalid()


Service Pack 22 for Emu48 Version 1.0

DEBUGGER.C
- moved global variables to EMU48.C and ENGINE.C
- changed function ViewCodeWnd() and NotifyDebugger(), changed "->"
  PC position marker to "-R" on RPL breakpoints
- bugfix in function DisableDebugger(), don't destroy handle before
  windows closed
- changed function Debugger(), set signal for window and last
  instruction buffer closed at end of WM_DESTROY message handler,
  init additional variables
- added implementation of "Find" dialog box
- bugfix in function NewValue(), EnterAddr() and EnterBreakpoint(),
  used ASCII instead of a member function of TCHAR.H
- changed function OnToggleCheck(), OnDrawBreakWnd(),
  DrawBreakpoint() and EditBreakpoint(), now the list box element
  use a link to the corresponding breakpoint element
- bugfix in function OnDrawBreakWnd(), sometimes the old focus
  rectangle wasn't purged
- changed function EditBreakpoint(), checkbox can also be toggled
  with the space key now
- bugfix in function OnEditBreakpoint(), redrawed code window always
  at PC position and not at actual address

DEBUGGER.H
- moved extern declaration of global variables to EMU48.H

DISPLAY.C
- bugfix in function UpdateDisplayPointers(), UpdateMainDisplay(),
  UpdateMenuDisplay(), WriteToMainDisplay(), WriteToMenuDisplay(),
  calculated wrong display areas when LINECOUNT (0x128,0x129)
  register was zero

EMU48.C
- replaced numbers with state machines defines
- added global variable from DEBUGGER.C
- changed function UpdateWindowStatus(), use groups for
  enable/disable menu items now
- changed function SettingsProc(), use global variable if COM port
  is open instead of calling CommConnect()
- bugfix in function OnPaint(), calculated wrong rectangle for
  display area when LINECOUNT (0x128,0x129) register was zero
- bugfix in function OnDropFiles(), OnStackPaste(), OnObjectLoad(),
  can't switch on if in debugger mode
- changed function WinMain(), added non modal "Find" dialog box in
  main message handler
- bugfix in function WinMain(), fixed a resource leak

EMU48.DSP
- added library advapi32.lib

EMU48.H
- removed extern declaration of global variable and function
- removed COM port state defines
- added state machine defines
- extern declaration of global variables
- changed function prototype

EMU48.RC
- changed properties of IDC_BREAKEDIT_WND
- added "Find" dialog
- changed version

ENGINE.C
- replaced numbers with state machines defines
- made COM port open flag public
- added global variables from DEBUGGER.C
- changed function Debugger(), a RPL breakpoint is now set on the
  destination address of a PC=(A) or a PC=(C) instruction and the
  RPL breakpoint detection with a prior A=DAT0 A D0=D0+ 5 sequence
  has been removed
- changed function CheckSerial(), use return value of CommOpen()
  instead of calling CommConnect()
- changed function WaitForSleepState(), close debugger before going
  into sleep state
- changed function SwitchToState(), changed detection of emulation
  thread termination and debugger now can be active when changing
  from Run to Sleep state

FILES.C
- changed function OpenDocument(), because of changed function
  CpuReset() additional work for automatic restart on changed ROM
  needed

IO.H
- added BITOFFSET definition

MOPS.C
- removed variable ir_ctrl_acc, was never used
- bugfix in function CpuReset(), changed some initial settings
- bugfix in function WriteIO(), force new COM port initialization
  when the EIRU bit in the IRC (0x11A) register has changed
- bugfix in function WriteIO(), reading from the LINECOUNT
  (0x128,0x129) register destroyed the settings for the
  Chipset.lcounter variable

RESOURCE.H
- added some definitions

RPL.C
- changed function RPL_CreateTemp(), changed remarks

SERIAL.C
- removed function CommConnect(), not used any more
- changed function CommOpen(), changed function return type
- bugfix in function CommOpen(), receiver state variables weren't
  resetted
- bugfix in function CommClose(), changed detection of thread
  termination and fixed a resource leak
- bugfix in function CommTransmit(), receive buffer may be
  overflowed when LPB (Loop Back) bit was set

SETTINGS.C
- prepared for registry support


Service Pack 21 for Emu48 Version 1.0

CHECKBOX.BMP
- bitmap with checked and unchecked box

DDESERV.C
- prepared for UNICODE support

DEBUGGER.C
- prepared for UNICODE support
- added implementation of "Run to Cursor"
- added HP39/40G stuff to function InitBsArea() and UpdateMiscWnd()
- added Enable/Disable of breakpoints in the Edit breakpoints dialog
- added breakpoint load/save file functions
- bugfix in function NewValue(), EnterAddr(), EnterBreakpoint(),
  EditBreakpoint() and InfoIntr(), try to get a window handle at
  begin of a dialog message handler cause illegal handles in some
  cases

DEBUGGER.H
- extern declaration of global variable and functions

DISASM.C
- prepared for UNICODE support
- changed function rn_port2(), select internal or external port2
  memory by the Chipset.Port2Size variable now

DISPLAY.C
- prepared for UNICODE support

EMU48.C
- prepared for UNICODE support
- added HP39/40G stuff to function UpdateWindowStatus(),
  SettingsProc(), OnDropFiles() and Disasm()
- bugfix in function OnPaint(), redraw display and button area even
  if emulation is suspended, redraw only requested bitmap area and
  redraw display without updating bitmap with display data
- bugfix in function OnFileNew(), overwrite title only on new
  document

EMU48.H
- prepared for UNICODE support

EMU48.ICO
- deleted unused device images

EMU48.RC
- changed properties of IDC_BREAKEDIT_WND
- added Menuitem Debug "Run to Cursor" in debugger menu
- changed version and copyright

ENGINE.C
- prepared for UNICODE support
- added part for debugger function "Run to Cursor"

EXTERNAL.C
- added HP39/40G stuff to the SFLAG53_56 definition

FILES.C
- prepared for UNICODE support
- added new document type for HP39/40G in several functions
- bugfix in function MapPort2(), in the first program instance in
  not shared mode a read only port2 file couldn't be loaded
- bugfix in function ResetDocument(), delete MMU mappings as well
- bugfix in function OpenDocument(), ask for new KML script when
  emulator state file and KML script file use different 'Model'
  settings
- changed function OpenDocument() and SaveDocument(), added debugger
  breakpoint data handling

IO.H
- added LINECOUNT definition

KML.C
- prepared for UNICODE support
- added "Class" keyword in Global section
- deleted function IsDigit(), replaced by function _istdigit()
- bugfix in function AddToLog(), fixed a memory leak
- new function MapKMLFile(), map KML file into memory
- new functions iSqrt(), AdjustPixel() and TransparentCircle(),
  subroutines for new button type
- changed function DrawButton(), changed button type 5 (was same
  implementation as type 0) to draw transparent circles
- changed function RefreshButtons(), redraw only buttons in
  requested area

KML.H
- prepared for UNICODE support
- added TOK_CLASS definition

MOPS.C
- new function UpdateDisplay(), handle display update
- changed function MapP2(), select internal or external port2 memory
  by the Chipset.Port2Size variable now
- added HP39/40G stuff to function MapROM(), RomSwitch(), Nread(),
  Nwrite() and ReadIO()
- bugfix in function Nwrite(), update display with address content
- changed function ReadIO(), set RX bit in the RCS (0x111) register
  for no character receive
- bugfix in function ReadIO(), wrong implementation of TBR register
  (0x116,0x117), read return last written byte
- bugfix in function WriteIO(), clearing the SON bit in the IOC
  (0x110) register clears also the IOC (0x110), RCS (0x111), TCS
  (0x112), RBR (0x114,0x115) and TBR (0x116,0x117) register
- bugfix in function WriteIO(), writing to the RCS (0x111), TCS
  (0x111) and TBR (0x116,0x117) register only works when the SON bit
  in the IOC (0x110) register is set

OPCODES.C
- prepared for UNICODE support
- removed InfoMessage in SREQ? opcode

PCH.H
- added include tchar.h

RESOURCE.H
- added some definitions
- removed IDC_DISASM_MNEMONICS

RPL.C
- bugfix in function Metakernel(), check for port1 memory before
  reading

SERIAL.C
- prepared for UNICODE support
- bugfix in function UpdateUSRQ(), USRQ bit in SRQ1 (0x118) register
  only set on serial interrupt condition when UART enabled

SETTINGS.C
- prepared for UNICODE support
- changed function ReadSettings(), use variable content as default

TIMER.C
- bugfix in function StartTimers(), check for timer interrupts at
  timer start


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 (0x119) register
- bugfix in function ReadIO(), wrong implementation of the SMP and
  SWINT bit in the CARDCTL (0x10E) register
- bugfix in function ReadIO(), wrong implementation of the NINT2 and
  NINT bit in the SRQ2 (0x119) register
- bugfix in function WriteIO(), wrong implementation of the SMP and
  ECDT bit and removed some wrong stuff in the CARDCTL (0x10E)
  register
- bugfix in function WriteIO(), the DA19 bit in the LINECOUNT
  (0x129) register is also available in the Clarke hardware
- bugfix in function WriteIO(), the RUN bit in the TIMER2CTRL
  (0x12F) register 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 (0x10F) register
  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 (0x11C) register

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 (0x13F)
  register updates the CRC (0x104-0x107) register
- bugfix in function ReadIO(), update the USRQ bit in the SRQ1
  (0x118) register after reading the RBR (0x114,0x115) register
- bugfix in function ReadIO(), update the NINT2 and NINT bits in the
  SRQ2 (0x119) register
- bugfix in function WriteIO(), update the USRQ bit in the SRQ1
  (0x118) register after writing the IOC (0x110) register or the
  TBR (0x116,0x117) register

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 (0x112) register and USRQ bit emulation in the SRQ1 (0x118)
  register
- bugfix in function CommReceive(), only reject reading if com port
  is closed and not whole operation and added USRQ bit emulation in
  the SRQ1 (0x118) register

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 (0x118) register

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 (0x10D)
  register

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
  (0x119) register 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
  (0x128,0x129) register emulation
- bugfix in function ReadIO(), the TIMER1CTRL and TIMER2CTRL
  (0x12E,0x12F) register must be updated before reading
- bugfix in function WriteIO(), don't clear the XTRA bit in the
  TIMER1CTRL (0x12E) register while setting
- bugfix in function WriteIO(), after setting new TIMER1CTRL and
  TIMER2CTRL (0x12E,0x12F) register 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 (0x120) register
  has been written
- bugfix in function WriteIO(), the Chipset.loffset variable only
  was updated when three nibbles at the LINEOFFS (0x125) register
  has been written
- bugfix in function WriteIO(), the Chipset.lcounter variable only
  was updated when the MSB of the LINECOUNT (0x129) register has
  been written
- bugfix in function WriteIO(), the Chipset.start2 variable only
  was updated when five nibbles at the MENUADDR (0x130) register
  has been written
- bugfix in function ReadIO(), the LINECOUNT (0x128-0x129) register
  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