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Domain Tech Debugger Manual

1. 2 004005 41 ALAS espesos igh AE Ar Bi CB E GG Ab GH eee HC SG banaenns 43 ASSEMBLE sans eee ee irse 44 BREAK ea AT IE 45 OFORE sirva SR gh eee eee eee ee ee oe ee eee 49 CHANGE i 44444 puros a 50 CONFIG ese co env elas ross 51 A soe ear eaa ee nese eee eee enews ee aeeene 52 DISASSEMBLE i si ees a RR Sth 8 RR ra es Ge eee Se RR 53 DISPLAY ae te wee ea eee RR ee eh eee ee ee GG 54 PMI eee see te eee ee nee ae side di ee eee ee ee eae ee 55 EVALUATE ou crono ee edt wehbe ew be hae CE es 56 PORCH im 56a en eee ee eRe eee eee ee eG 57 OO sew ee Baek eee ee eee eee ee ee ee 3 58 PIEL arcas CERA A Be 59 INPUT ur anew osas asas ees 60 JUMP coc rosas daros ara AA 63 ECO cesar raros As 65 OUTPUT rasos Aaa e 66 PATR amp eon oe oes oe ee eh ee AE AAA 69 QUIE gt uu eee eee te ee ee oe eee ee eee 70 RAO Boe Boe T n af ee wee Ree eee ee A eee 71 REFRE OR ee ates ea east e Beas as ae Ge ee 12 RETURN epoca onto ade rodas 73 SAVER 74 SEP rev ac on ee Ruta cea ae Beene dass 75 SIMBOL eos da 76 TIME gt lt a kee Be ora AAA Tf TRACE ase Cian eee an radares A d 78 UNALIAS vrai hehe ee eee eee ee eee 19 UNASSEMBLE oka ee Beet ee Se Gee ee ee eee eG 80 Woe Senora oa eee ee ee ee ee 81 A as a es aba she fe ee Oe 82 VERSION gt 6 oe oe ar di Ae se eee eee 83 VIEWS Paw eae ee ah hr ee eRe ee hee ee Re eee 84 WAU a es aidh bt we se ah ee eS s dhe oe ee eee eet Ee 85 WATCH bed ogee aeeeeeea
2. Debug 56K User Manual 81 Commands VARIABLE Define a New Variable Syntax VARIABLE name Description The variable command defines a variable at the debugger level The variable defined may then be used for temporary storage name The name of the variable defined Example 1 VARIABLE PC STORAGE define a new variable POC TORACGE El save PC value GO start DSP FORCE R stop DSP PG PC STORAGE restore PC value 82 Debug 56K User Manual Commands VERSION Display Debug 56K s version Syntax VERSION Display the Debug 56K version number Example 1 VER Will display the Debug 56K version number Debug 56K User Manual 83 Commands VIEW Open an ASCII Text File Syntax VIEW OFF filename line Description Display an ASCII file in the view window OFF Remove the viewed file fname Name of the file to display If a directory is not specified within the file name the default directory is used see the PATH and USE commands line Display from line number If not specified the file is displayed from the first line Example 1 VIEW DEMO1 ASM 10 Display the file DEMO1 ASM in the view window starting at line 10 84 Debug 56K User Manual Commands WAIT Wait Specified Time Syntax Description time BREAK Example 1 Example 2 WAIT time BREAK Wait a number of seconds This command is helpful when executing macro command files The wait can be aborted by pressing any key W
3. Read the README TXT file if you are installing the debugger for the first time The README TXT file provides information not available in this manual 1 5 Command Line Parameters You may need to set one or more command line parameters before executing the debugger to define 4 the debugger s mode of operation The command line parameters are set in the program properties window The following is a list of the debugger s command line parameters H Q Help list the command line parameters Disable sorting of the symbol tables Set the debugger in demonstration mode Initialize to the default screen settings Specify a screen configuration file name Do not strip leading F from the symbols Set the stack memory space Set the base port address of the PC card Set the multiplier of the DSP s Phase Locked Loops PLL Set the RS 232 port number C1 C2 C3 Specify the target DSP A detailed description of the command line parameters is provided in Chapter 3 Debug 56K User Manual Tutorial CHAPTER 2 TUTORIAL This chapter will guide you through most of Debug 56K The tutorial uses the DSP demonstration programs supplied with this software 2 1 Start Debug 56K Invoke Debug 56K with the I command line options I stands for initial screen settings After invoking Debug 56K the screen becomes divided into four windows the command window the unassemble window the data and the registers window The pu
4. F10 instructs the DSP to execute one instruction while treating a subroutine as one instruction This is similar to single step with the exception that when a subroutine call is reached the whole subroutine is executed 3 7 13 Shift F10 Run in Continuous jump Shift F10 toggles the continuous jump mode on off This runs the DSP but it causes a complete screen refresh after every DSP instruction while treating a subroutine call as one instruction The speed of execution depends on the number of windows opened the speed of the PC the speed of the link between the PC and the DSP and the speed of the target hardware 3 8 Symbols and Symbolic Debugging Symbolic debugging is available for C and assembly language programs To enable symbolic debugging the source files must be prepared with the g switch when executing the compilation tools Symbolic debugging is supported by COFF and IEEE 695 files In symbolic debugging the user can refer to a variable by the variable s name instead of the variable s numerical address The variables are named by the user in the source files The following are a few examples of symbol usage Example 1 BREAK START Set a breakpoint at START Example 2 DISPLAY VALUE AO Display memory at VALUE_AO Example 3 GO main Change PC to main then start the DSP Symbolic debugging is possible only when the debugger finds the symbols A menu specific for symbols is available in Debug 56K The symbol menu can be u
5. hex INPUT file_number address OFF TERM filename dec fra hex The input command is used to open a text file and use the file to pass data to the target DSP chip The data is passed to the target DSP when the user s program reaches a software breakpoint The text file lists the data sequentially The INPUT command with no parameters displays all open input files file number is the number of the file opened multiple files can be opened simultaneously The file number is optional the range is 1 to 99 address is the address where the DSP breakpoint is halted in order to perform the file input always in the P space Assigning the address of the DEBUG instruction in INPUT command defines direction of the data transfer when user program reaches DEBUG opcode The address is optional if one of the direction bits in register R1 is set closes an opened input file If a file is not specified all opened files are closed uses the terminal keyboard instead of a text file to input data to the target DSP is the name of the file used for data input specifies decimal data representation specifies fractional data representation specifies hexadecimal data representation This is the default Parameters specified by the user s DSP program Since multiple files can be opened your DSP program must specify the file number this is accomplished by placing the file number in the most significant 8 bits of register XO
6. 4 4 Command Help Rules The last line displays command specific help when a command is being entered The following is the command help convention A list of the commands is made available by pressing the space bar repeatedly The highlighted part of a command name indicates the least letters that need to be types when entering a command Parameters between brackets are for optional parameters Example GO address Parameters between parentheses are for descriptive purposes only Example COPY from address_block to address A bar is used to separate a list of possible command parameters Example FORCER B RU 4 5 Command Editor To speed up commands entry the command window has a built in command editor with a command history buffer The mouse and the following keys may be used when a command is being entered or edited 38 Debug 56K User Manual Commands Key Description Ta Scroll the command history Move cursor left and right Ins Toggle insert mode on off Del Delete a character Home Move to beginning of command line End Move to end of command line Esc Delete changes Enter Accept and execute command The vertical scroll bar can also be used to scroll through the command history buffer The pull down menu config command can be used to program the command window 4 6 Macro Commands A number of commands may be grouped in a command file and then executed automatically The M
7. Spaces within test syntax are not permitted Other Breakpoint Rules The default breakpoint is a software breakpoint Only one hardware breakpoint may be set at a time Up to 128 software breakpoints may be set simultaneously You may use the function key F9 to set and clear unconditional software breakpoints You may use the mouse to set and clear unconditional software breakpoints You may use the pull down menu to display clear save or load breakpoints BREAK pcf PLAYABLE 20 Break on program memory fetch and execution of the instruction at range of instructions between PLAYABLE and PLAYABLE 32 hardware breakpoint BREAK pcm P LABEL 1 P LABEL 2 7 Break when program memory location between P LABEL_1 and P LABEL_2 is written to 7 times hardware breakpoint BREAK pcm P LABEL 1 7 Break when program memory location P LABEL_1 is accessed 7 times hardware breakpoint BREAK rw xa X 100 200 Break when data memory location 100 is accessed 200 times hardware breakpoint BREAK P 228 T AM VALUE 1000 Set a breakpoint at address P 228 and enter debug mode if the value of AM_VALUE is greater than 1000 software breakpoint BREAK LOOP T X0 Y 1200 Set a breakpoint at program address labeled LOOP and enter debug mode if the value of register XO is not equal to memory location Y 1200 software breakpoint 48 Debug 56K User Manual Commands CFORCE Reset the Emulator Syntax CFORCE R Description
8. The user program must specify the number of words to transfer this is accomplished by placing that number in the low 16 bits of register XO The low 8 bits of register XO are used for the DSP56100 The user program must also specify the address where the data will be placed This is accomplished by placing that address in register RO The user program must specify the address space P X or Y where the data will be placed This is accomplished by placing a value in the register R1 A 0 is used for P 1 for X and 2 for Y memory space The direction of the data transfer may be specified optional by placing a flag in register R1 If the most significant bit 8000 hex is 1 the direction is into the DSP If the 14th bit 4000 hex of R1 is 1 direction is out of the DSP If neither bits are set the address of the DEBUG instruction is used 60 Debug 56K User Manual Commands Details on the text file Example 1 Example 2 Example 3 Example 4 Example 5 The breakpoint must reached by a user induced DEBUG instruction The text file is always ASCII with the data listed sequentially Debug 56K provides ways to simplify the file editing for example if one word must be send to the DSP repeatedly you can have a repeat code instead of typing an infinitely long file The following are the codes that may be used in the ASCII file Specifies the number of times a data word is repeated Parenthesis are used to group words
9. 5 Shift F5 Stop Shift F5 stops the DSP 3 7 6 F6 Select Next Window F6 selects the next window The current window is deselected and the next window is selected The opened windows are numbered in a logical order 3 7 7 Shift F6 Automatic Screen Update Shift F6 toggles the automatic screen update mode on off In the automatic screen update mode when the DSP is started the DSP is interrupted periodically to refresh the data and the registers windows 3 7 8 F7 Go to Cursor F7 causes the execution of the DSP program until the program counter reaches the instruction at the cursor The unassemble window must be selected before pressing F7 3 7 9 F8 Single Step F8 causes a single DSP instruction to be executed 3 7 10 Shift F8 Run in Continuous Step Shift F8 toggles the continuous step mode on off This runs the DSP with a complete screen refresh after every DSP instruction The speed of execution depends on the number of windows opened the speed of the PC the speed of the link between the PC and the DSP and the speed of the target hardware 3 7 11 F9 Toggle a Breakpoint When the unassemble window is selected F9 sets clears a breakpoint To set a breakpoint with F9 move the cursor to the DSP instruction of choice and press F9 To remove the breakpoint with F9 move the cursor to the instruction with the breakpoint and press F9 32 Debug 56K User Manual Using the Debugger 3 7 12 F10 Jump
10. If parenthesis are preceded by the whole group is repeated If doest not precede the parenthesis the group of words is repeated indefinitely Ort Use Us 04 Send data words 0 1 0 2 0 3 0 4 0 1 10 Send the data words 0 1 10 times 0 1 0 2 10 Send 0 1 0 2 0 1 0 2 fff a Send 7fff indefinitely 1 2 3 5 2 10 20 f3 10 send 1 2 3 5 5 10 20 10 20 10 20 10 10 10 10 Examples on entering the input command Example 1 Example 2 Example 3 Example 4 INPUT Display all currently open input files INPUT 1 P 100 DATA IO dec Open DATA IN file label it file number 1 and send the data to the DSP when the breakpoint at address P 100 is reached Data in DATA IO is in decimal INPUT P 100 DATA IN2 Open DATA IN2 file label the file automatically and send the data to the DSP when the breakpoint at address P 100 is reached Data in DATA IN is in hexadecimal INPUT P 100 TERM When the breakpoint at P 100 is reached read data from the terminal keyboard and send it to the DSP Debug 56K User Manual 61 Commands Examples of DSP code to support the INPUT command Example 1 MOVE SUL0GLO x0 16 WORDS FROM FILE NUMBER 1 MOVE 50000 RO PLACE DATA AT ADDRESS 0 MOVE 50001 R1 PLACE THE DATA IN SPACE X DEBUG BREAK AND ENTER THE DEBUG MODE Example 2 MOVE SOZ2U0L2Z 0 18 WORDS FROM FILE NUMBER 2 MOVE 50020 R0 PLACE DATA AT ADDRESS 20 MOVE SO000 Ri PLACE TH
11. P 100 DATA OUT Open DATA OUT file label the file automatically and send the data to the file when the breakpoint at address P 100 is reached Data in DATA OUT is in hexadecimal OUTPUT P 100 TERM When the breakpoint at P 100 is reached read data from the DSP and send it to the terminal screen Examples DSP code to support the OUTPUT command Example 1 MOVE MOVE MOVE DEBUG Example 2 MOVE MOVE MOVE DEBUG 010010 X0 16 WORDS to FILE NUMBER 1 50000 RO READ DATA FROM ADDRESS 0 ODO El READ DATA FROM SPACE X BREAK AND ENTER THE DEBUG MODE 020012 X0 18 WORDS to FILE NUMBER 2 S0020 RO READ DATA AT ADDRESS 20 50000 R1 READ DATA FROM SPACE P BREAK AND ENTER THE DEBUG MODE Debug 56K User Manual 67 Commands Example 3 MOVE MOVE MOVE DEBUG 030080 X0 90200 R0 4002 R1 128 WORDS to FILE NUMBER 3 READ DATA AT ADDRESS 200 BEAD DATA PROM SPACE Ye OUTPUT DIRECTION BREAK AND ENTER THE DEBUG MODE 68 Debug 56K User Manual Commands PATH Define directory path Syntax PATH pathname Description The PATH command sets the default directory for file read and file write operations pathname String defining the default directory If pathname is omitted the current path is displayed if it was previously set See also the USE command Example 1 PATH D 56002 PROGRAMS SET the default directory to D 56002 PROGRAMS Example 2 PATH Display the def
12. debugger is interfacing with the DSP through the DSP s host port Configure the tool bar The tool bar may be placed vertically horizontally it may be placed in the large or small format The tool bar may also be removed from the screen Set the minimum automatic screen refresh rate This sets the screen refresh rate when the DSP is running in the automatic screen refresh mode The refresh rate also depends on other factors including the number of data windows opened the size of the data windows the speed of the host computer and the speed of the serial link Reset the DSP before a load In the default mode the DSP is not reset before a load In the normal mode when Debug 56K is invoked the DSP is reset automatically If this switch is turned off the DSP is kept in it s current state after invoking Debug 56K 22 Debug 56K User Manual Using the Debugger Reverse ASCII When on bytes are swapped before they are displayed in an ASCII data window Tab size Set the tab size The tab size value is used to translate a tab into the specified number of spaces The tab size affects the view window only Verify Memory lf this flag is set all memory writes by the debugger to the DSP are verified 3 3 7 Window Menu Cascade Place the resource windows in cascade Tile Tile the resource windows Horizontal Tile the resource windows horizontally Vertical Tile the resource windows vertically Arrange icons Arrange the r
13. defined with he ALIAS command Name of the alias to remove Function key of the alias to remove Either name or key must be defined UNALIAS prgload Remove PRGLOAD alias UNALIAS F1 Remove alias at function key F1 Debug 56K User Manual 79 Commands UNED 3 Unassemble Memory Syntax Description addr mode Example 1 Example 2 UNSASSEMBLE address mode Unassemble memory in the unassemble window Address of the first memory location to unassemble The address may be in the X Y or P space The address is optional If the address is omitted the unassemble window is scrolled down by one page mode specifies the program display mode Three modes available are Mode Description ASM Reverse assembly mode SRC Source mode MIX Mixed mode ASM and SRC interlaced If the mode is omitted the current mode is used UNASSEMBLE LABEL 1 Disassemble from memory location LABEL_1 UNASSEMBLE Scroll the Unassemble window down by one page 80 Debug 56K User Manual Commands USE Use Different Directory Syntax USE path string r The USE command specifies an additional directory to be searched to locate Description the source files Multiple directories can be specified If no parameters are specified all defined directories will be listed r will remove the directory from the search list Example 1 USE d dsp source coeff Use additional directory while locating source file
14. executing the compilation tools The load files have the following extensions LODOMF files CLDCOFF files ABSIEEE 695 files The symbols are sorted automatically by the debugger unless specified otherwise by the q command line parameter The leading F is stripped from the symbols unless otherwise specified by the f command line parameter debugger automatically resets the DSP upon load unless otherwise specified by the pull down menu lt Config Reset On Load gt 18 Debug 56K User Manual Using the Debugger Open Module View Exit Files List Cache Calls Cmd Data DMA Flags I O Local Once Reg Open a source code module This opens the selected source code module and places it in the unassemble window Opening a source code module is applicable in source level debugging only Place an ASCII file in the view window this is helpful when the user needs to browse a text file The file being viewed can not be edited Exit Debug 56K The screen configuration is saved automatically and The DSP s state is left intact upon exit Source line information and symbolic information is lost upon exit List of most recently loaded files A single click on a file name automatically loads the file to the DSP The list is empty if no files have been previously loaded 3 3 2 View Menu Open the cache window The cache window can be opened only when the DSP being used has internal progra
15. is similar to single step except subroutine calls are treated as one instruction Step continuously Jump continuously In this mode subroutine calls are treated as one instruction Toggle the automatic screen update mode If the DSP is started while the debugger is in the automatic update mode the debugger s screen is updated continuously Reset the DSP Debug 56K User Manual Using the Debugger Display Clear Load Load On Start Files List Display Clear Load Save Hard Break 3 3 4 Symbols Menu Display the symbols in the symbols window When the symbols are displayed a symbol can be selected and then a function can be applied to it The following are the functions that can be performed on a symbol Button Description Unassemble Unassemble memory at symbol Display Display memory at symbol Watch Watch at symbol Go To Run the DSP to instruction Break Toggle a breakpoint at symbol Close Close the symbol window Clear all the symbols This will put the debugger in the non symbolic mode of operation Load symbols from a program file all the DSP memory and resources are left intact If this flag is set the symbols are loaded automatically when Debug 56K is started List of most recently loaded files 3 3 5 Breakpoint Menu Display all the breakpoints set A breakpoint can be selected and then cleared The close button closes the breakpoint window Clear all breakpoints L
16. program counter reaches the instruction with the breakpoint Debug 56K User Manual 11 Tutorial 2 15 Remove the Breakpoint Remove the breakpoint that was set previously you can remove the breakpoint in one of four ways 1 2 d 4 Place the cursor at the instruction with a breakpoint and lt double click LMB gt Use the BREAK command from the command window Place the cursor at the instruction with the breakpoint and press function key F9 Use the pull down menu Breakpoint Display Delete or Breakpoint Clear 2 16 Change the Radix of the Data Window Select the data window and then click on the type button Capital T picture this will change the radix of the data window Change the radix of the data window again by clicking on the type button repeatedly You may also use F2 to change the radix 2 17 Open More Data Windows Debug 56K allows the user to have up to 10 data windows opened simultaneously One data window is open atthis point open a new data window by clicking on lt View Data gt from the pull down menu 2 18 Graphics To display a block of memory graphically first select a data window then click on the graphics button sine wave picture The graphics button is placed on the tool bar only when the data window is selected 2 19 Change a Register Value You can change a register value in one of two ways 1 2 Use the change command On screen editing 12 Debug 56K U
17. significant 8 bits of register XO The user program must specify the number of words to transfer this is accomplished by placing that number in the low 16 bits of register XO 8 bits are used for the DSP56100 The user program must also specify the address where the data will be read from This is accomplished by placing that address in register RO The user program must specify the address space P X or Y where the data will be placed This is accomplished by placing a value in the register R1 A 0 is used for P 1 for X and 2 for Y memory space The direction of the data transfer may be specified optional by placing a flag in register R1 If the most significant bit 8000 hex is 1 the direction is into the DSP If the 14th bit 4000 hex of R1 is 1 direction is out of the DSP If neither bits are set the address of the DEBUG instruction is used The breakpoint must reached by a user induced DEBUG instruction 66 Debug 56K User Manual Commands Details on the text file The text file is always ASCII with the data listed sequentially in the format specified but the OUTPUT command Examples on entering the input command Example 1 Example 2 Example 3 Example 4 OUTPUT Display all currently open output files OUTPUT 1 P 100 DATA OUT rd Open DATA OUT file label it file number 1 and use the file to save data when the breakpoint at address P 100 is reached Data is saved in decimal OUTPUT
18. update mode on off In the automatic screen update mode and when the DSP is running the DSP is interrupted periodically to update the data windows and the registers window Other resource windows are not updated The CONFIG command and the pull down menu can also be used to toggle the automatic update mode 3 4 6 Reset DSP Button Reset the DSP The FORCE R command and the pull down menu can also be used to reset the DSP The debugger s screen is refreshed after the reset 3 4 7 Radix Button Change the radix of the selected window This button can be used to change the radix of a data window the registers window or the command window The button is not displayed if other windows are selected The radix of the window is displayed on the upper border of that window The RADIX command can also be used to change the radix of the command window Following are the available radices Data windows Hex Dec Fra Asc Bin Graphical Data windows Hex Dec Fra Registers window Hex Dec Fra Command window Hex Dec Fra Bin Flags window Bin All other windows Hex The radix of the registers window affects the display of registers X XO X1 Y YO Y1 A B only All other registers in the registers window are always displayed and edited in Hex The RADIX command may also be used to change the default radix of the command window Debug 56K User Manual 25 Using the Debugger 3 4 8 Graph Button The graph button
19. 2 SYMBOL La Display all symbols starting with La 76 Debug 56K User Manual Commands TIME Display Execution Time Syntax TIME Description The TIME command can be used to measure the execution time of a DSP program A timer is automatically cleared and started when the GO command is executed the same timer is automatically stopped when the DSP is stopped The TIME command displays the value of that counter The resolution of the timer is 1 us For proper timer operation the program should be run for more than 50 us The TIME command is available when the debugger is used with Domain Technologies LINK 56K emulator The TIME command may not be supported under other hardware platforms Example 1 TIME Display the timer value Debug 56K User Manual Ef Commands TRACE Trace Through DSP Program Syntax TRACE count Description The TRACE command executes a single or multiple DSP instructions with a full screen refresh after every instruction count Number of instructions to execute If count is omitted one instruction is executed Example 1 TRACE Execute one DSP instruction and update screen Example 2 TRACE 10 Execute 10 DSP instructions with a screen update after every instruction 78 Debug 56K User Manual Commands UNALIAS Remove Custom Command String Syntax Description name key Example 1 Example 1 UNALIAS name Key The UNALIAS command removes a previously defined alias Aliases are
20. 28 or blank if a breakpoint is not set at that instruction 3 5 14 The View Window The view window is used to display ASCII text files Use the pull down menu lt view view gt to open the view window Use the pull down menu lt file view gt or the VIEW command to place a text file in the view window Editing of the text file is not allowed inside the view window 3 5 15 The Watch Window The watch window is used to conveniently group variables for examination and editing A memory location a register or a data structure may be placed in the watch window Watched variables can be displayed in Hex Dec Bin or Fra A variable may be placed in the watch window by using one of the following three techniques 1 Use the WATCH command 2 Use the symbols window 3 Place the cursor in the watch window and press the insert key A variable may be removed from the watch window by using one of the following two techniques 1 Use the WATCH command 2 Place the cursor in the watch window on the variable to remove and press the delete key Variables placed in the watch window may be edited To edit a watch variable place the cursor in the watch window on the variable to edit then press the space bar or the right mouse button Arrays and data structures placed in the watch window may be expanded and compressed To expand or compress a data structure or an array place the cursor on the name and double click the left mouse button or
21. Debug 56K Debugger for the Motorola Digital Signal Processors A Product of Domain Technologies Inc Debug 56K User s Guide Version 3 00 January 13 1998 DSPs supported by this software DSP560xx DSP561xx DSP563xx DSP566xx DSP568xx MC68356 DSP side Trademarks IBM PC XT AT are trademarks of International Business Machines Corporation OnCE is a trademark of Motorola Inc Windows Microsoft Windows and Windows 95 are trademarks of Microsoft Inc Domain Technologies Inc 1700 Alma Dr Suite 495 Plano Texas 75075 Tel 972 578 1121 Fax 972 578 1086 E mail support domaintec com Web page http www domaintec com Disclaimer of Warranty This software package is provided on an AS IS basis and without warranty In no event shall Domain Technologies be liable for incidental or consequential damages arising from the use of this software This disclaimer of warranty extends to LICENSEE to LICENSEE s customers or users of products and is in lieu of all warranties whether expressed implied or statutory including implied warranties of merchantability or fitness for a particular purpose Domain Technologies does not warrant that software furnished hereunder is free of infringement of any third party patents copyrights or trade secrets Debug 56K User Manual TABLE OF CONTENTS CHAPTER 1 GENERAL INFORMATION 7 1 1 Introduction nena reee T 1 2 Introduction to t
22. E DATA IN SPACE P DEBUG BREAK AND ENTER THE DEBUG MODE Example 3 MOVE SO 30080 x0 128 WORDS FROM FILE NUMBER 3 MOVE 0200 R0 PLACE DATA AT ADDRESS 200 HEX MOVE 538002 R1 PLACE THE DATA IN SPACE Y INPUT DIRECTION DEBUG BREAK AND ENTER THE DEBUG MODE 62 Debug 56K User Manual Commands JUMP Jump Over Subroutine Calls Syntax JUMP Description JUMP instructs the DSP to execute one instruction while treating a subroutine as one instruction This is similar to single step with the exception that when a subroutine call is reached the whole subroutine is executed If the DSP reaches a breakpoint inside the subroutine it will enter the debug mode before completing the subroutine call Example 1 JUMP Execute jump Debug 56K User Manual 63 Commands Mey Load DSP Program Syntax Description CLD LOD ABS S Example 1 Example 2 Example 3 LOAD filename CLD LOD S The LOAD command loads a program file generated by the Motorola assembler linker into the DSP s memory The DSP memory can be internal or external The memory space can be X Y P or L The file is read from the default directory see the PATH and USE commands To enable symbolic debugging and source level debugging the switch g must be entered when executing Motorola s compilation tools If the symbols are not found the debugger enters the non symbolic mode of operation If the source line information is not found the de
23. Hardware breakpoint on write Hardware breakpoint on read or write The simplest and most commonly used breakpoint is the unconditional software breakpoint with the following simplified syntax breakpoint_number OFF break_address with no arguments displays all breakpoints set Parameters for software breakpoints breakpoint number is a number between 1 and 128 for software breakpoints and 0 for the hardware breakpoint This number is incremented automatically for software breakpoints or it can be specified by the user Off removes the breakpoint at the breakpoint number If a breakpoint number is not entered all hardware and software breakpoints are removed Start the DSP automatically after the breakpoint is reached break_address is the address of the breakpoint The address may be X Y P or a symbol Debug 56K User Manual 45 Commands Example 1 Example 2 Example 3 Example 4 Example 5 brk_acc Brk_typ BREAK P 100 Set a software breakpoint at program memory 100 hex BREAK START PROGRAM Set a software breakpoint on program memory instruction labeled START_PROGRAM BREAK Display all currently set breakpoints hardware as well as software BREAK OFF Remove all breakpoints BREAK OFF 2 Remove breakpoint number 2 Parameters for hardware breakpoints break_access is used to set a hardware breakpoint on memory read r write w or access rw Break access can not be used with softwar
24. P space The address is optional If the address is omitted the current program counter value is used Instr Instruction to be assembled The instruction is optional if the instruction is entered that instruction is assembled and the DSP s memory is updated If the instruction is omitted the unassemble window is selected and the cursor is placed at the specified address If the address and the instruction are omitted the unassemble window is selected and the cursor is placed at the instruction equal to the program counter Example 1 A P 100 ADD A B Assemble the instruction ADD A B and place opcode in memory location P 100 Example 2 A Assemble at the address equal to the program counter Example 3 A START PROGRAM Assemble at address labeled START_PROGRAM 44 Debug 56K User Manual Commands BREAK Breakpoint Operations Syntax Description BREAK BREAK brk OFF S brkAddr BREAK breakpoint_number OFF break_access break_type break_address break_block break_count expression S The BREAK command sets removes and displays breakpoints Many types of breakpoints are supported Software breakpoints unconditional Software breakpoints conditional Software breakpoints with expressions Hardware breakpoint with a count Hardware breakpoint without count Hardware breakpoint with a range Hardware breakpoint without a range Hardware breakpoint on read
25. Reset the emulator hardware unit The CFORCE command is applicable only when Debug 56K is used with an external emulation unit Example 1 CFORCE R Reset the emulator 49 Debug 56K User Manual Commands CHANGE Change Register or Memory Syntax CHANGE register register_block address address block to value Description Change a register a register block a memory or a memory block to value reg A register reg_blk A block of registers addr A memory location addr_blk A block of memory value The change value Example 1 CHANGE X 0 10 Change data memory location X 0 to 10 Example 2 CHANGE LABEL 1 LABEL 2 10 Change memory locations from LABEL_1 to LABEL_2 to 10 Example 3 CHANGE X 0 100 1234 Change 100 data memory locations starting at address X 0 to 1234 Example 4 CHANGE A2 10 Change register A2 to 10 Example 5 CHANGE RO R3 10 Change register RO R1 R2 and R3 to 10 50 Debug 56K User Manual Commands CONFIG Set System Configuration Options Syntax Description Refresh Tab Reset Sens Verify Update Example 1 Example 2 CONFIG Refreshn Tabn Reset On Off Sens On Off Verify On Off Update On Off The Config command is used to set the system options The CONFIG command is especially helpful when used with macro command files Sets the minimum time delay in ms between screen refreshes in the continuous update mode Sets the number of spaces for a tab cha
26. UGGER 3 1 About This Chapter This chapter provides a description of the debugger user interface Commands are described in Chapter 4 3 2 Command Line Parameters Command line parameters are used to control the debugger s mode of operation These parameters are set by using the Microsoft Windows program properties window before the debugger is executed The following is a description of the command line parameters h q d pn kn description of all command line parameters Disable sorting of the symbol table normally the debugger automatically sorts the symbol table Set the debugger in demonstration mode no target hardware is present In this mode the DSP memory is simulated on the PC DSP code may be loaded in the demonstration mode but the code may not be executed Initialize screen settings to the default settings If I is omitted the screen settings are read from the file DBG56KW CFG Specify a screen configuration file name default DBG56KW CFG This feature allows the user to have multiple screen configuration files Instructs the debugger not to strip the leading F from the symbols when the symbols are loaded from the symbols table Set the stack memory space to I x or y Default is sy for 24 bit DSPs Default is sx for 24 bit DSPs Set the base port address of the PC card This parameter is applicable only when the target DSP is on a card residing inside the PC chassis The default bas
27. acro command opens a file of commands MacroName CMD and process the commands in that file The macro command file can have any combination of valid commands The commands are read processed and executed one ata time Commands are delimited by a carriage return or a semicolon Text after a semicolon is ignored and can be used as a command A macro command file can have variable parameters Variable parameters are identified by a circumflex sign followed by a number 1 2 Variable parameters are replaced with their numeric values when the macro is invoked Debug 56K User Manual 39 Commands Example Rad1x walt change go force walt step walt break go walt hex break x 80 10 0 b break break DIE break Change radix to hexadecimal walt until DSP enters debug mode Clear 16 memory locations Tun the DSP stop the DSP walt until DSP enters debug mode single step the DSP wait until DSP enters debug mode set a breakpoint at PC 7C run the DSP wait until DSP gets in debug mode Macro commands are especially helpful when performing automated system tests 40 Debug 56K User Manual Commands 4 7 List of Commands Command ALTAS ASSEMBLE BREAK CFORCE CHANGE CONFIG COPY DISASSEMBLE DISPLAY EMI EVALUATE FORCE GO HELP INPUT JUMP LOAD LOG OUTPUT PATH QUIT RADIX REFRESH RETURN Brief Description Define custom command string Define cu
28. ait time in seconds If time is omitted the wait is indefinite Wait until the DSP gets in the debug mode of operation WAIT 12 Wait for 12 seconds WAIT break Wait until the DSP enters debug mode Debug 56K User Manual 85 Commands WATCH Place Variable in Watch Window Syntax WATCH expression label mode r Description The WATCH command places a variable in the watch window expr Expression defining the locations to place in the watch window label Label of the variable to watch mode The mode specifies the radix used for the display Available formats are hex dec fra bin The default is hex f Is used to remove the variable from the watch window If address is not specified all the watched variables are removed Example 1 WATCH X 0000 Place memory location at X 0000 in the watch window Example 2 WATCH AM VALUE fra Place memory location at AM_VALUE in the watch window display in fractional Example 3 WATCH P 0000 sr Remove P 0000 from the watch window Example 3 WATCH r Remove all watched variables 86 Debug 56K User Manual Commands Syntax Description lvalue rvalue Example 1 Example 2 Example 3 Example 4 Example 5 Evaluate Expression 2 lvalue rvalue The command is used to evaluate expressions The result of the expression evaluation is displayed in the command window The command can also be used to change the value of a variable a memory loc
29. ata and the address may be edited on screen 3 5 5 The DMA Window The DMA window displays registers specific to the DMA controllers This window is applicable only to DSPs with internal DMA controllers 3 5 6 The Flags Window The flags window is used to display and edit the DSP s status registers in binary format Although the status register in the registers window provides the same information the flags window provides a convenient way to read and edit individual flags 3 5 7 The I O Window The I O Peripherals window is used to display and edit the DSP s I O peripheral registers Non readable registers are not displayed Non writable registers can not be edited Registers that change the DSP s status when read are not displayed All values are displayed and edited in Hex 28 Debug 56K User Manual Using the Debugger 3 5 8 The Local Variables Window The local variables window is used to display the C local variables The C local variables are placed and removed automatically by the debugger The local variables window is applicable only in C source level debugging 3 5 9 The OnCE Window The OnCE window is used to display the OnCE port registers The values are displayed in hexadecimal 3 5 10 The Registers Window The registers window is used to display and edit the DSP s internal registers Registers X XO X1 Y YO Y1 A and B can be displayed and edited in Fra Dec or Hex All other registers are disp
30. ate the expression set value_1 to the result EVALUATE FILTER 100 O Clear the 101 s element of the array FILTER 56 Debug 56K User Manual Commands FORCE Reset or Break DSP Syntax FORCE R B RU Description Force the DSP R Reset DSP and enter debug mode B Stop DSP and enter debug mode RU Toggle the DSP s reset line Example 1 FORCE R Reset DSP and enter debug mode Example 2 FORCE B Stop DSP and enter debug mode Example 3 FORCE through Toggle the DSP s reset line Debug 56K User Manual 57 Commands o o ooo Execute DSP Program Syntax GO address Description The GO command runs the DSP addr Starting address If address is omitted the program executes from the current program counter If the address is specified the program counter is changed to the address by the debugger before the DSP is started Example 1 GO Start DSP Example 2 GO LABEL 1 Start DSP from program memory location LABEL 1 Example 3 GO P 100 Start DSP from program memory location 100 hex 58 Debug 56K User Manual Commands HELP Display Help Screen Syntax HELP command Description Start Help comm if command specified help is displayed for the specific command Example 1 HELP Display the help screen Example 2 HELP BREAK Display the help for the BREAK command Debug 56K User Manual 59 Commands INPUT Assign Input File Syntax Description file addr OFF TERM fname dec fra
31. ation or a register The command may be used with C and assembly language variables and constants Left Value The left value and the equal sign are optional they are used when a variable or a memory location are modified Right Value The right value is the expression to evaluate The command is similar to the EVALUATE command except the EVALUATE command does not display the evaluated value 2 RO 100 Set register RO to 100 hex display new RO 2 A Display the value of register A 2 R2 RO R1 3 Evaluate the expression set R2 to the result display new R2 value 1 value 2 value 3 Evaluate the expression set value_1 to the result display new value 1 2 FILTER 100 O Clear the 101 s element of the array FILTER display new 101 s element of array FILTER Debug 56K User Manual 87 Commands 88 Debug 56K User Manual Index Index H A hey IO IS Im In Iq La 87 automatic screen update 25 ALIAS 43 alias button 43 ASSEMBLE 44 base port address 17 46 47 Break access 46 Break count 47 Break expression 47 Break type 46 Breakpoint 21 Command 17 27 cache 27 calls 27 case sensitivity 51 CFORCE 49 CHANGE 50 Command line parameters 17 Config 22 CONFIG 51 COPY 52 demonstration mode 17 28 53 Data 28 DISPLAY 54 DISSASEMBLE 53 DMA 28 EMI 55 EVALUATE 56 File 18 31 flags 28 FORCE 57 function key 43 g
32. ault directory path Debug 56K User Manual 69 Commands QUIT Quit Debug 56K Syntax QUIT Description The QUIT command terminates Debug 56K When QUIT is executed the DSP is left in it s current state and the screen configuration is automatically saved in the screen configuration file Upon reentry to Debug 56K the screen configuration is read automatically from the screen configuration file Example 1 QUIT Quit Debug 56K 70 Debug 56K User Manual Commands RADIX Change Radix of Command Window Syntax RADIX B binary D decimal F fractional H hexadecimal Description The RADIX command changes the default radix of the command window The following are the available options Radix Description b Binary d Decimal f fractional h Hexadecimal All constants data and addresses entered in radix may be overwritten if one of the following characters precedes a number for hexadecimal numbers example 7fffff for decimal numbers example 5000 for binary numbers example 10101011 The RADIX command can not be used to change the radix of a data or a register window Example 1 RADIX H Set command window s default radix to hexadecimal Debug 56K User Manual 71 Commands REFRESH Toggle Screen Refresh On Off Syntax REFRESH ON OFF Description In normal operation the debugger s screen is refreshed when the DSP is halted Screen refreshes can be disabled with the refres
33. bugger enters the non soure level mode of operation COFF filename extension OMF filename extension IEEE 695 filename extension Load the symbols only LOAD DEMO1 LOD Load the file DEMO1 LOD OMF format from the default path LOAD DEMO3 CLD Load the file DEMO3 CLD COFF format from the default path LOAD C PROGRAMS DEMO3 CLD s Load the symbols from CAPROGRAMSIDEMO3 CLD 64 Debug 56K User Manual Commands Eole Log Information Syntax LOG ON filename LOG OFF memAddress_block UNA_address_block REG reg_name ONCE Description The LOG command is used to log information to the log file ON fname Opens a log file If the file already exists information is appended to the file The current date and time are written to the log file after it is opened Default file extension is LOG OFF Closes the log file The current date and time is written to the file before it is closed memAddrBlk Memory block to save to the file REG reg_name REG saves all registers to the file If a register name is specified only that register is saved UNA_addrBlk Block of instructions to save to the file ONCE Save the OnCE registers to the file Example 1 LOG ON sessiond Start logging to file SESSION5 LOG Example 2 LOG MEM X S40 20 Save memory locations X 40 to x 60 to log file Example 3 LOG REG Save registers to log file Example 4 LOG REG RO Save register RO to log file to log file Example 5 LOG OFF Close the l
34. by clicking on the update button DSP package picture In this mode the DSP is interrupted regularly to refresh the screen 10 Debug 56K User Manual Tutorial 2 10 Stop the DSP Stop the DSP by clicking on the stop button Stop sign picture You can also use the FORCE Break command from the command window or the function key Shift F5 to stop the DSP 2 11 Do Single Step Make sure the DSP is in stop mode then perform a single step by clicking on the single step button magnifier with steps picture You can also use the STEP command or F8 to perform a single step 2 12 Do Continuous Step No button is available for continuous step use the Cont step pull down menu to put the DSP in the continuous step mode The continuous step mode performs repeated single steps with a full screen refresh after every instruction 2 13 Do Multiple instructions Stop the DSP Execute the command STEP 9 This will cause the DSP to execute 9 instructions without any interruption After the 9th instructions the DSP is stopped and the screen is updated 2 14 Set a Breakpoint Set a breakpoint you can set the breakpoint in one of three ways 1 Place the cursor at the instruction in the unassamble window and lt double click left mouse button gt 2 Use the BREAK command from the command window 3 Place the cursor at instruction and press function key F9 Run the DSP with the breakpoint set The DSP runs and then stops when the
35. cation P 100 in graphics with a decimal axis 54 Debug 56K User Manual Commands CU Set EMI Parameters Syntax Description LX EMI Wx Lx The EMI command displays or sets the External Memory Interface access parameters This command is applicable for DSPs with dynamic memory support DSP56004 DSP56007 etc Set the EMI data bus width Two selections are available 4 bit data bus w0 8 bit data bus w1 Set the EMI data word length Four options are available 8 bit data word LO 16 bit data word L1 24 bit data word L2 16 bit data word 24 bit address L3 Debug 56K User Manual 55 Commands EVALUATE Evaluate Expression Syntax Description lvalue rvalue Example 1 Example 2 Example 3 Example 4 EVALUATE Ivalue rvalue The EVALUATE command is used to evaluate expressions or to set a variable a memory location or a register This command may be used with C and assembly language variables and constants Left Value The left value and the equal sign are optional They are used when a variable or a memory location are set Right Value The right value is the expression to evaluate The EVALUATE command is similar to the command except the command displays the result in the command window EVALUATE RO 100 Set register RO to 100 hex EVALUATE R2 RO R1 3 Evaluate the expression set R2 to the result EVALUATE value 1 value 2 value 3 Evalu
36. e breakpoints Ifa break access is specified the breakpoint is automatically is treated as a hardware breakpoint break_access applies only to break _types xa ya and pa Break_access Meaning R break on memory read W break on memory write rw break on memory read or write Break type determines the breakpoint type There are 8 types of hardware breakpoints and 16 types of software breakpoints The following are the hardware breakpoint types they apply to the 24 bit DSPs only please refer to the help screen for other DSPs Break_type Meaning pcf Break on program memory fetch pcm Break on program memory move pcfm Break on program memory read write pce Break on executed fetches only pa Break on P memory access xa Break on X memory access ya Break on Y memory access The following are the 16 types of conditional software breakpoints The software breakpoint types are based on the value of the Condition Code Register CCR To set a conditional software breakpoint Debug 56K replaces your DSP instruction with a DEBUGcc instruction thus the DSP program may be contaminated break_type applies only to break_access r w and rw 46 Debug 56K User Manual Commands Type CC CS EC EQ ES GE GT LC LE LS LT MI NE NR PL NN brkCnt addrBI T expr Meaning Condition code carry clear C 0 carry set C 1 extension clear E 0 equal Z 1 extension set E 1 greater or equal N xor V 0 greater t
37. e port address is set to P240 Set the multiplier of the DSP s phase locked loops This is applicable for the DSP56002 only Set the RS 232 port c1 c2 c3 If this parameter is omitted the debugger scans all the RS 232 ports to find the attached hardware This parameter is applicable only when the PC s serial port is used to control the DSP Debug 56K User Manual 17 Using the Debugger vn Specify the target DSP The following are the options available v1 for DSP56001 and DSP56002 v2 for DSP56004 and DSP56007 v3 for DSP56003 and DSP56005 v4 for DSP56156 v5 for DSP56166 v6 for DSP56301 v7 for DSP56303 v8 for DSP56603 No parameter is needed for the DSP568xx processors Example C DBG56K DBG56K EXE d I Run Debug 56K in demonstration mode default screen settings 3 3 Description of the pull down menus The pull down menus are used to perform a wide range of commands functions and settings The following is a description of the Debug 56K pull down menus and options 3 3 1 File Menu Load Load a DSP file into the target DSP memory The DSP memory can be internal or external to the DSP The memory space can be X Y or P The file formats supported are OMF COFF and IEEE 695 Load also loads the symbols for symbolic debugging and source file line information for source level debugging To make source level debugging and symbolic debugging possible the g switch must be specified when
38. eeeeee eee ae one 86 Debug 56K User Manual General Information CHAPTER 1 GENERAL INFORMATION 1 1 Introduction Debug 56K is a debugger for the MotorolaTM 16 and 24 bit Digital Signal Processors This product and this manual can be used with any of Motorola s 16 bit and 24 bit DSPs 1 2 Introduction to this Manual This manual covers the functionality of Debug 56K with any of Motorola s 16 and 24 bit DSP the examples and the commands provided are specific to the 24 bit DSP56002 DSP A tutorial chapter walks the user through the majority of the features provided by the debugger Debug 56K is a hardware independent debugger designed to run on more than one hardware platform A separate manual describing the specific hardware platform is provided along with this manual 1 3 Debuggers Features Source level C assembly and mixed debugging On screen editing Built in assembler disassembler Multiple memory display modes Graphic display of memory Up to 10 data windows Up to 128 software breakpoints True real time hardware breakpoint Tool bar for speedy debugging User definable buttons Dedicated window for symbols Adjustable font sizes 1 4 Installation of the Debugger Software To install the software do the following Debug 56K User Manual 7 General Information Insert diskette in the floppy drive and execute INSTALL EXE Select the destination directory if different from the default directory
39. esource windows icons Close all Close all the opened resource windows Windows List List of all the opened resource windows 3 3 8 Help Menu Index Get the help index Topic search Search help for a topic Using help How to use the help About Information about Debug 56K 3 4 Description of the Tool bar Debug 56K User Manual 23 Using the Debugger The Tool bar provides a quick and convenient way to enter many of the most often used commands The following is a detailed description of the Tool bar buttons 3 4 1 Go Button Run the DSP from the program counter The GO command and the pull down menu can also be also used to run the DSP from the program counter 3 4 2 Stop Button Stop the DSP The FORCE B command and the pull down menu can also be used to stop the DSP The debugger s screen is refreshed after the stop is completed 3 4 3 Step Button Single step this executes a single DSP instruction The STEP command and the pull down menu can also be used to perform a single step The debugger s screen is refreshed after the step 3 4 4 Jump Button Perform a Jump JUMP is similar to STEP except that a subroutine call is treated as one instruction The JUMP command and the pull down menu can also be used to perform a jump The debugger s screen is refreshed after the jump 24 Debug 56K User Manual Using the Debugger 3 4 5 Automatic Update Button Toggle the automatic screen
40. h command Disabling screen refreshes may be helpful with slow systems with high screen refresh times ON Enable screen refreshes OFF Disable screen refreshes The refresh command without On or Off refreshes the screen Upon a refresh the DSP s resources are uploaded by the debugger and displayed on the screen Example 1 REFRESH OFF Disable screen refreshes Example 2 REFRESH ON Enable screen refreshes Example 3 REFRESH Refresh screen 72 Debug 56K User Manual Commands RETURN Execute Until RETURN Instruction Syntax RETURN Description Run the DSP until a RETURN instruction is reached The DSP is stopped when a RET instruction is reached Example 1 RETURN Execute DSP stop when a RET instruction is reached Debug 56K User Manual 73 Commands SAVE Save DSP Memory to File Syntax SAVE addr block addr_block addr_block filename LOD hex dec fra bin App Ovr col_ cnt Description The SAVE command saves one or more blocks of memory into a text file The file format is compatible with files generated by the Motorola assembler linker Program as well as data memory can be saved Memory can be internal or external to the DSP If the file directory is not specified the file is read from the default directory see the PATH and USE commands If the file extension is not specified it is automatically assumed to be LOD Symbols are not saved with the SAVE command addrBlck Addres
41. han Z or N xor V 0 limit clear L 0 Less or equal Z or N xor V 1 Lower or same Z or C 1 less than N and V 1 minus N 1 not equal Z 0 normalized Z or not N amp not E 1 plus N 0 not normalized Z or not N and not E 0 Break count specifies the number of times the condition must be satisfied before a hardware breakpoint is reached The break_count does not apply for software breakpoints If the count is not specified it defaults to one For 24 bit DSPs break_count may be greater than O and less than 1000000 For the DSP561xx break count may be greater than 0 and less than 10000 For the DSP568xx break count may be greater than 0 and less than 100 address block specifies an address range for hardware breakpoints break_block can not be used with software breakpoints The address range may be X Y P or a symbol Break expression allows the break at a breakpoint only if a condition is satisfied The DSP is stopped the expression is evaluated while the DSP is stopped Ifthe expression is not satisfied the DSP is started again If the expression is satisfied the DSP stays halted The format of T expression is as follows T val1 val2 Val1 and Val2 can be one of following Debug 56K User Manual 47 Commands e AS al Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Immediate value number preceded by Register Memory location Tests supported
42. he space bar displays all the commands available 4 3 Command Entry Rules Only one two or three letters of a command need to be typed when entering a command This feature is designed to reduce the number to keystrokes needed to enter a command Example CPCO is equivalent to CHANGE PC 0 The radix of the command window determines the default input radix This affects constants as well as addresses being entered The default radix may be overwritten by preceding a number by for decimal for hexadecimal and for binary A block of memory may be specified in two ways Format 1 The memory block is defined by the starting address and the ending address of the block Syntax start_address end_address Example CHANGE X 0 FF 1234 Will change memory locations O to FF to 1234 Format 2 The memory block is defined by the starting address of the block and the number of words in the block Syntax start_address number_of_words Example CHANGE X 0 100 1234 Will change 100 memory locations starting at O to 100 to 1234 Aregister block defines a block of DSP registers The block of registers is defined by the first register and the last register of the block Debug 56K User Manual 3r Commands Syntax start_register end_register Register blocks possible XO X1 YO Y1 A0 A2 B0 B2 R0 R7 N0 N7 M0 M7 Example CHANGE RO R7 1234 Will change registers RO R1 R7 to 1234
43. he tool bar if name is preceded by the character A large button can hold up to three characters a small button can hold one character A name representing the alias The name is optional The ALIAS command generates a button for mouse usage if the name is preceded by A function key representing the alias The following is a list of the function keys supported F1 F12 F1 to F12 SF1 SF12 Shift F 1 to Shift F12 AF1 AF12 Alt F1 to Alt F12 CF1 CF12 Ctrl F1 to Ctrl F12 String function to be executed when the alias is called Multiple commands can be defined within one alias definition Multiple commands are separated by a semicolon Command parameters are identified by a circumflex sign followed by a number 1 22 If command string is omitted the alias definition for that name or key is displayed If name key and command string are omitted all defined aliases are displayed ALIAS prgload FORCE R LOAD 1 GO prgload resets the DSP loads the specified file and then runs the DSP ALIAS AF2 Display the alias definition of Alt F2 ALIAS Display all alias definitions ALIAS 1lst change PC 0 Generate a tool bar button for the command change PC 0 Debug 56K User Manual 43 Commands CE li il On Screen Assembler Syntax ASSEMBLE address instruction Description Assembles one DSP instruction addr Address of the memory location to assemble The address may be in the X Y or
44. his Manual oaa aa T 1 3 Debuggers Features oaoa a a a a 0000008 T 1 4 Installation of the Debugger Software 7 1 5 Command Line Parameters 8 CHAPTER 2 TUTORIAL o 4 cor ea es 9 2 1 StartDebug 56Kk 0000200 ee ea 9 2 2 Observe the Data Window 0 9 2 3 Observe the Unassemble Window 9 2 4 Observe the Registers Window 10 2 5 Observe the Command Window 10 2 6 Move Around the Screen a 10 2 7 Change Memory eee ee ee es 10 2 8 Load the Assembly Language Program 10 2 9 Runthe DSP Program 2 20 00 00 ee 10 2 10 Stop the DSP seicdenedvwteeteteeca set eiad 11 2 11 Do Single Step eee 11 2 12 Do Continuous Step 2 2 2 a 11 2 13 Do Multiple instructions 0 8 11 2 14 Set a Breakpoint 0 00048 11 2 15 Remove the Breakpoint ee ea 12 2 16 Change the Radix of the Data Window 12 2 17 Open More Data Windows 12 2 18 Graphics AA 12 2 19 Change a Register Value ee a 12 2 20 Display the Symbols v v vs asa a 13 2 21 Use the Symbols Window Ls suas ee ee ee ee ee a 13 2 22 Use the Symbols from the Command Window 13 2 23 Try
45. is used to display the selected data window graphically A graph may be scrolled scaled sized and moved The Up Down arrow keys are used to change the vertical graph scaling A graph can have a hex dec or fra radix One or more data windows can be displayed graphically The graph button is placed on the screen only when a data window is selected The DISPLAY command may also be used to toggle the graphics mode on off 3 4 9 Reverse Assembly Mode Button Put the unassemble window in the reverse assembly mode In the unassemble mode the DSP s memory is reverse assembled and then placed in the unassemble window The reverse assembly mode button is placed on the screen only if the unassemble window is the window selected The UNASSEMBLE command may also be used to change the display mode On screen editing of the DSP code is permitted in this mode a ara nena past 3 4 10 Source Mode Button Put the unassemble window in the source mode In this mode the DSP code is read from the source text file and then placed in the unassemble window The source mode button is placed on the screen only when the unassemble window is selected If the source line information is not found by the debugger this button is not displayed The UNASSEMBLE command may also be used to change the display mode On screen editing of the DSP program is not permitted in the source mode 26 Debug 56K User Manual Using the Debugger 3 4 11 Mixed M
46. layed and edited only in Hex 3 5 11 The Stack Window The stack window is used to display and edit the stack The stack values are displayed and edited in Hex 3 5 12 The Trace Window The trace window is used to display the instruction discontinuity trace buffer The trace window is applicable only for DSPs with an internal instruction discontinuity trace buffer 3 5 13 The Unassemble Window s The Unassemble window is used to display and edit the DSP programs The unassemble window can be displayed in one of three modes Mode Description ASM Program displayed in reverse assembly mode SRC Program displayed in source mode MIX Program displayed in mixed mode reverse assembly and source The source program must be compiled assembled and linked with he g switch in order for the SRC and the MIX modes to function On screen editing is valid in the ASM mode The unassembe window is organized into the following columns described from left to right Debug 56K User Manual 29 Using the Debugger Column Description Breakpoint type Breakpoint type or blank if a breakpoint is not set at that instruction Address Memory space indicator followed by the address X or P memory may be placed in the unassemble window Opcode Opcode of the instruction displayed in Hex Second opcode Second word of a two word instruction displayed in Hex Mnemonic The DSP instruction Breakpoint Breakpoint number 0 to 1
47. ll down menus and the tool bar appear at the top of the screen the status line is the last line of the screen The command window is now the window selected this means that key strokes will be placed inside the command window 2 2 Observe the Data Window The data window is used to display DSP data The upper border of the data window has 3 elements 1 The window name Data 2 The radix of the window HEX for hexadecimal 3 The label or the address of the first element inside the window This field is currently empty because no label is available Inside the window the left most column is the address space X Y P or L followed by the address in HEX The body of the window is the data 2 3 Observe the Unassemble Window The unassemble window is used to display the DSP program The upper border of the unassemble window has 3 elements 1 The window name 2 The program display mode ASM for reverse assembly 3 The name of the source file This apples when the unassemble window is placed in the source mode or the mixed mode Debug 56K User Manual 9 Tutorial 2 4 Observe the Registers Window The registers window displays the DSP s internal registers The radix is displayed on the upper border of the window The DALU Data Arithmetic Logic Unit registers are displayed either as a whole registers or as separate sub registers All the registers are displayed in hexadecimal Registers A B X and Y can be dis
48. m cache Open the calls history window The calls window can be opened when C programs are debugged at the source level Open the command window Open a data window Up to 10 data windows may be opened simultaneously Open the DMA status window The DSP window can be opened only when the DSP being used has an internal DMA controller Open the flags window Open the peripheral registers window Open the C local variables window Open the OnCE registers window Open the ALU registers window Debug 56K User Manual 19 Using the Debugger Stack Trace Unasm View Watch Run Stop Step Jump Cont Step Cont Jump Update Reset Open the stack window Open the trace window The tracw window can be opened only when the DSP being used has an internal trace buffer Open the unassemble window Open the ASCII file view window This window stays empty until an ASCII file is viewed If a view window is closed and then reopened the previously viewed ASCII is automatically placed in the view window A file placed in the view window may not be edited Open the variable watch window The watch window remains empty until variables are placed in it If a watch window is closed and then reopened the previously watched variables are automatically placed in the watch window 3 3 3 Run Menu Run the DSP from program counter value Stop the DSP Perform a single step Perform a Jump Jump
49. oad breakpoints from a breakpoint file The breakpoint file is independent of the source and load files The file name extension for breakpoint files is BRK Save breakpoints into a breakpoint file The breakpoint file is independent of the source and load files The file name extension for breakpoint files is BRK Set a hardware breakpoint Debug 56K User Manual 21 Using the Debugger 3 3 6 Config Menu Case Sens Colors Font Comm baud Command Win I O Port Quick menu Refresh rate Reset on load Reset on start Case sensitivity on off This feature is especially helpful when working with programs with a large set of symbols If off case sensitivity is ignored by the debugger Example MAIN will be treated as main Set the windows colors The colors of individual windows are changed independently or in a group After being set the windows colors are saved automatically upon exit from Debug 56K Set the screen font Set the baud rate This is applicable when the PC controls the DSP through an RS 232 port Options and settings for the command window The following are the Command Window s sub menus Clear History Clear the history buffer History Size Set the size of the history buffer Save Commands Save the commands to a file Save History Save the history buffer to a file Set Prompt Set the command line prompt Set the PC card s I O base address This setting is applicable when the
50. ode Button 3 5 Description of the Resource Windows Put the unassemble window in the mixed mode In the mixed mode reverse assembly and source instructions are interlaced in the unassemble window The mixed mode button is displayed on the screen only when an unassemble window is selected If the source line information is not found by the debugger this button is not displayed The UNASSEMBLE command may also be used to change the displayed mode On screen editing of the DSP program is not permitted in the mixed mode 3 5 1 The Cache Window The cache window is used to display the DSP s instruction cache registers This window is applicable only for DSPs with internal instruction cache Tag registers TAGO to TAG 7 with their respective RLU and LOCK bits are displayed in the cache window The tag registers are displayed in hexadecimal the RLU and LOCK bits are displayed in binary The cache registers window is organized into the following columns TAG 24 bit Tag register RLU bit LOCK bit 3 5 2 The Calls Window The calls window displays the calls history for C function The contents of the calls window are updated automatically when a subroutine is called or when a subroutine is returned from The calls window is applicable only for C source level debugging 3 5 3 The Command Window The command window is used to enter commands Commands are entered at the prompt when the command window is selected A history buffer is built in
51. og file Debug 56K User Manual 65 Commands OUTPUT Assign Output File Syntax Description file addr OFF TERM fname dec fra hex Ovr col_cnt OUTPUT file number address OFF TERM filename dec fra hex Ovr col_ cnt The output command is used to open a text file and use the file to save data passed from the target DSP chip The data is passed to the file when the user s DSP program reaches a software breakpoint The OUTPUT command with no parameters displays all open output files is the number of a file opened multiple files can be opened simultaneously The file number is optional the range is 1 to 99 The ASCII text file lists the data sequentially is the address of the debug instruction always in the P space The address is optional if one of the direction bits in register R1 is set closes an opened output file If a file is not specified all opened files are closed uses the terminal monitor instead of a text file and display the data is the name of the file used for data output specifies decimal data representation specifies fractional data representation specifies hexadecimal data representation This is the default Over write file if the file exists Column count Parameters specified by the user s DSP program Since multiple files can be opened your DSP program must specify the file number this is accomplished by placing the file number in the most
52. page mode specifies the program display mode Three modes are available are Mode Description Asm Reverse assembly mode Src Source mode Mix Mixed mode ASM and SRC interlaced If the mode is omitted the current mode is used DISASSEMBLE LABEL 1 mix Disassemble from memory location LABEL_1 in mixed mode DISASSEMBLE X 100 Disassemble from memory location X 100 DI P 100 Disassemble from memory location P 100 DI Scroll the unassemble window down by one page Debug 56K User Manual 53 Commands DISPLAY Display Memory Syntax Description addr radix mode DISPLAY address radix mode The DISPLAY command displays program or data memory in a data window If more than one data window is open the data is displayed in the window that was last selected The starting address of the window If address is not specified the window is scrolled down by one page Specifies the data display radix The valid radices are Radix Description d Decimal h Hexadecimal b Binary f Fractional a ASCII If the radix is omitted the current radix is used Specifies the data display mode The valid modes are Mode Description t Text g Graph If the mode is omitted the current mode is used Example 1 DISPLAY LABEL 1 Display from memory location LABEL 1 Example 2 DISPLAY L 100 b Display from memory location L 100 in binary format Example 3 DISPLAY P100 d g Display from memory lo
53. played hex dec fra 2 5 Observe the Command Window The command window is used to enter commands The radix HEX means that numbers entered with commands are treated as hexadecimal numbers 2 6 Move Around the Screen Click inside the data window this will select the data window now use the cursor control keys or the mouse to move the cursor inside the data window Select the unassemble window select the registers window select the command window 2 7 Change Memory There are two basic ways to change a value You can either use the CHANGE command from the command window or do on screen editing To use the CHANGE command select the command window then enter the following at the prompt CHANGE X 0 123456 This changes data memory location 0 to 123456 hex To do on screen editing select the data window move the editing cursor to memory location O and type 654321 This will change memory location at address O to 654321 hexadecimal 2 8 Load the Assembly Language Program If you are using a 16 bit DSP load the program DEMO1_16 CLD If you are using a 24 BIT DSP then load the program DEMO1_24 CLD You may load the program by using the File pull down menu or by using the LOAD command 2 9 Run the DSP Program Run the DSP by clicking on the GO button Green arrow picture You can also run the DSP by entering the GO command from the command window or by pressing function key F5 Enable the automatic screen update mode
54. press enter key right mouse key or the space key 30 Debug 56K User Manual Using the Debugger Information on the WATCH command is provided in Chapter 4 3 6 Status Help Line The last line of the display is the Status Help line The status help line is used to display the following 1 The DSP s program counter value 2 Command sensitive help when a command is being entered 3 List of all available commands when the command window is selected and the space bar is pressed 3 7 Function Keys The keyboard s function keys provide the user with a convenient way to perform some of the most frequently used commands Function key usage is optional since the tool bar and the pull down menus provide the same functionality The following is a description of the function keys 3 7 1 F1 Help F1 displays help 3 7 2 F2 Toggle Radix or Display Mode For the data windows the registers window and the command window function key F2 toggles the radix For the unassemble window function key F2 toggles the program display mode F2 has no affect on all other window The specific window must be selected before using F2 3 7 3 F3 Display Data Graphically F3 toggles the graphic display of a data window on off F3 has no affect on all other windows A data window must be selected before pressing F3 Debug 56K User Manual 31 Using the Debugger 3 7 4 F5 Go F5 starts the DSP from the current program counter 3 7
55. racter This applies when displaying ASCII text files in the view window When set the DSP is automatically reset before a program load The default is off Enables or disables case sensitivity for symbols entry The default is on Enables or disables memory verify after memory writes Default is off Enables or disables the data and registers windows updates when the DSP is running Default is OFF CONFIG ref 2000 Sets refresh interval time to 2000 ms 2 s CONFIG update on Turn automatic update ON Debug 56K User Manual 31 Commands COPY Copy a Memory Block Syntax COPY from address block to address Description Copy a block of memory addrBlk The block of memory to be copied addr The starting address of the second block Example 1 COPY Xi 100 P20 Copy data memory block X 0 to X 100 into program memory starting at p 0 Example 2 COPY LABEL 1 LABEL 2 LABEL 3 Copy memory block LABEL_1 to LABEL 2 into memory block starting at LABEL_3 Example 3 COPY X 0 100 X 200 Copy 100 memory locations starting at data memory location O into data memory location starting at 200 52 Debug 56K User Manual Commands DISSASEMBLE Disassemble Memory Syntax Description addr mode Example 1 Example 2 Example 3 Example 4 DISASSEMBLE address mode Disassembles memory program or data in the unassemble window The starting address If address is omitted the window is scrolled down by one
56. raph 26 Debug 56K User s Guide 89 Index Ix In Im IS Im lo Po In GO 58 Help 23 hardware breakpoints 46 HELP 59 Initialize screen settings 17 I O Peripherals 28 INPUT 60 Jump 24 JUMP 63 local variables 29 LOAD 64 LOG 65 mixed mode 27 Macro Commands 39 memory verify 51 OnCE 29 OUTPUT 66 PATH 69 QUIT 70 Run 20 24 radix 25 RADIX 71 REFRESH 72 registers 29 Reset 25 RETURN 73 reverse assembly mode 26 screen configuration 17 33 34 75 SAVE 74 screen refresh 51 Single step 24 software breakpoints 45 Source level debugging 34 source mode 26 stack 29 90 Debug 56K User s Guide Index Is Ic I lt Ix stack memory space 17 STEP 75 Stop 24 SYMBOL 76 Symbolic debugging 33 Symbols 21 trace 29 78 tab character 51 TIME 77 TRACE 78 trace window 29 UNALIAS 79 UNASSEMBLE 80 USE 81 View 19 VARIABLE 82 Variable parameters 39 VERSION 83 VIEW 84 Window 23 WAIT 85 WATCH 86 windows updates 51 Debug 56K User s Guide 91 Index 92 Debug 56K User s Guide
57. ry buffer to remember previously entered commands Use the cursor control keys or the mouse to scroll through past commands 2 28 Open More Windows Open the Flags Window The flags window displays the status register s flags in a binary format Open the Watch Window The Watch Window displays user defined watch variables 2 29 Exit Debug 56K Use the pull down menu File Quit gt to exit from Debug 56K You can also use QUIT command to exit from Debug 56K The screen configuration is saved automatically 14 Debug 56K User Manual Tutorial 2 30 Debug a C program If you are using a 16 bit DSP load the program DEMO2_16 CLD If you are using a 24 BIT DSP then load the program DEMO2_24 CLD Experiment with the following Seta breakpoint on a C line Run the C program Single step the C program Display program in the reverse assembly mode Display program in source mode Display program in the mixed mode Set in automatic screen update mode and run DSP Display the symbols Examine memory at the sine waves Display the sine waves graphically Open the watch window Place an array in the watch window Place a data structure in the watch window Zoom the data structure Open the local variables window Single step and examine the contents of the local variables window Debug 56K User Manual 15 Tutorial 16 Debug 56K User Manual Using the Debugger CHAPTER 3 USING THE DEB
58. s block addrBlk Additional address block s fname File name default extension is LOD App Ovr Append to file over write if file exists col_cnt Column count Example 1 SAVE X 0 90 DATA OO1 Save memory locations X 0 to X 90 into file DATA 001 Example 2 SAME XFO 90 P20 100 DATATI Save memory locations X 0 to x 90 and memory locations P 0 to P 100 into file DATA1 OUT 74 Debug 56K User Manual Commands STEP Step DSP Program Synatx STEP count Description The STEP command instructs the DSP to execute a number of instructions and then enter the debug mode The instruction s execute from the current value of the program counter count Number of DSP instructions to execute If count is not specified one instruction is executed Example 1 OTEP Execute one DSP instruction and enter the debug mode Example 2 STEP 5 Execute 5 DSP instructions and enter the debug mode Debug 56K User Manual 75 Commands SYMBOL Display Symbol Table Syntax SYMBOL symbol or part of symbol name Description The SYMBOL command displays the symbols The symbols are displayed in alphabetic order Symbols are case sensitive unless the case sensitivity is turned off symbol If omitted all the symbols are displayed If specified only the symbols starting with symbol or part of symbol name are displayed It will match all the symbols starting with the specified string Example 1 SYMBOL Display all symbols Example
59. sed to display the symbols clear the symbols and load symbols from a file A flag may be set to instruct the debugger to load symbols upon starting the debugger Symbols are displayed in the symbols window In the symbol window the user can select a symbol and apply a command to that selected symbol The following are the commands that may be applied to a selected symbol Debug 56K User Manual 33 Using the Debugger Button Description Unassemble Unassemble at symbol Display Display memory at symbol Watch Place variable in the watch window Go To Execute from program counter until instruction at the symbol Break Set a breakpoint at symbol 3 9 Source Level Debugging Source level debugging allows the user to see the DSP programs in the unassemble window exactly as they appears in the source files Source level debugging is available for DSP programs written in C or assembly language In source level debugging Debug 56K automatically reads the object files the source code files and the information that links the object files to the source flies To enable source level debugging the source files must be prepared with the g command line switch when executing the compilation tools Debug 56K must also be able to find the source files Assembly and C source level debugging is supported by COFF and IEEE 695 files 3 10 Debugging C Software To debug C programs with Debug 56K the source files must be prepared with the g
60. ser Manual Tutorial 2 20 Display the Symbols Stop the DSP load the DSP program again if necessary Use the pull down menu mbol Display to display the program s symbols You can also display the symbols by executing the SYMBOL command 2 21 Use the Symbols Window From the symbols window you may select a symbol and then perform a function on the selected symbol Set a breakpoint at LOOP by selecting the symbol LOOP and then clicking on the BREAK button Place VALUE_AO in the watch window by selecting the symbol VALUE_AO and then clicking on the Watch button 2 22 Use the Symbols from the Command Window Select the command window perform the following commands CHANGE VALUE AO 1234 COPY VALUE AO VALUE Al WATCH VALUE AO 2 23 Try the Evaluator Select the command window perform the following commands VALUE AO VALUE Al VALUE A2 EVALUATE RO 100 126 2 24 Set Watches Select the command window perform the following commands WATCH RO Debug 56K User Manual 13 Tutorial WATCH VALUE A0 WATCH k 0 2 25 Get Help Debug 56K under Microsoft Windows has extensive built in help Press the function key F1 or use the pull down menu Help to get help 2 26 Get Command Sensitive Help In the command window type COPY followed by a space This will display help on the COPY command in the help line 2 27 Edit Commands in the Command Window The command window has a built in histo
61. stom command string Breakpoint operations Reset the emulator Change register or memory value s Set system configuration options Copy a memory block Disassemble memory Display memory Define EMI parameters Evaluate expression Reset or stop DSP Execute DSP program Display help Assign input file Jump over a subroutine call Load DSP program Log information Assign output file Define directory path Quit Debug 56K Change radix of command window Toggle screen refresh on off Execute until RETURN instruction Debug 56K User Manual 41 Commands SAVE Save DSP memory to file STEP Single step DSP program SYMBOL Display symbols TRACE Trace through DSP program TIME Display execution time UNALIAS Remove alias UNASSEMBLE Unassemble memory USE Use different directory to search for source files VARIABLE Define a new variable VERSION Display Debug 56K software version and mode VIEW Open an ASCII text file for viewing WAIT Wait specified time WATCH Place variable in the watch window 2 Evaluate expression 42 Debug 56K User Manual Commands ALIAS Define Custom Command String Syntax Description name key string Example 1 Example 2 Example 3 Example 4 ALIAS name key string The ALIAS command is used to assign a name to a set of keystrokes it is usually used to rename commands or to pack multiple commands into one command The ALIAS command generates an alias button on t
62. switch when executing the compilation tools Debug 56K must also be able to find the source files The commands and operations available for assembly language debugging are also available for C debugging The local variables window is a C specific window it is used to display the C local variables The local variables are placed and removed automatically by the debugger Arrays and structures inside the local variables window may be expanded and compressed variables may be edited The calls window is a C specific window it is used to display the C calls history C source level debugging is supported by COFF files and IEEE 695 files 34 Debug 56K User Manual Using the Debugger 3 11 Macro Commands Debug 56K allows the user to group a number of commands in a macro command file for batch processing Refer to Chapter 4 for further information on commands and macro command files 3 12 Editing inside a Resource Window To edit inside a resource window place the cursor at the variable to be edited then type the new value over the old value Press the Enter key to accept the new value press the Esc key to restore the old value Debug 56K User Manual 35 Using the Debugger 36 Debug 56K User Manual Commands CHAPTER 4 COMMANDS 4 1 Command Entry Commands are entered in the command window at the command line prompt 4 2 Command Help The last line of the screen displays command sensitive help Pressing t
63. the Evaluator 0 2 0 0 eee 13 2 24 Set Watches 0 20020000008 13 2 25 Get Help 2544 v BRE ee RARE ER EE RR we ee 14 2 26 Get Command Sensitive Help 14 2 27 Edit Commands in the Command Window 14 2 28 Open More Windows 02 52 5084 14 2 29 Exit Debug 56K 4444646844444 SRR a a 14 2 30 Debug a C progam aaa a a a a ee ee ee a a 15 CHAPTER 3 USING THE DEBUGGER 17 3 1 About This Chapter 17 3 2 Command Line Parameters 4 17 3 3 Description of the pull down Menus 18 3 4 Description of the Tool bar 24 3 5 Description of the Resource Windows 27 3 6 Status Help Line e 31 3 7 Function KEYS either 31 3 9 Source Level Debugging 0 34 3 10 Debugging C Software 34 3 11 Macro Commands 000085 35 3 12 Editing inside a Resource Window 35 CHAPTER 4 COMMANDS e 37 4 1 Command Entry a 37 4 2 Command Help v a a a 37 4 3 Command Entry Rules v vs ass asa ae ee ee ee ee ee a 37 4 4 Command Help Rules 38 4 5 Command Editor ee ee ee 0 048 38 4 6 Macro Commands 2 000050 39 4 7 List of Commands
64. to the command window a past command may be executed or edited prior to execution The user may use the mouse or the keyboard s cursor movement keys to scroll through the history buffer An editor is built into the command window The user may use the mouse or the keyboard s cursor movement keys to edit a command The valid radices for the command window are Hex Dec Bin and Fra The radix of the command window may be changed with the RADIX command or by pressing the T button of the tool bar Debug 56K User Manual 27 Using the Debugger The pull down menu config command provides a number of functions to program the command window Refer to the description of the pull down menus and to Chapter 4 for further description of the command window 3 5 4 The Data Window s Data windows are used to display DSP memory Up to 10 data windows may be opened simultaneously X Y P or L memory may be displayed and edited in a data window Internal as well as external memory may be displayed in a data window The left hand side of a data window is the address column always in Hex The upper border of the window has the window name the radix and the symbolic location of the first address inside the window if a symbol exists The body of the window has the values of the memory locations A data window may be displayed and edited in Hex Dec Fra Bin and ASCII A data window may be displayed graphically in Hex Dec and Fra The d

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