SCU DSP Simulator User`s Manual
Contents
1. R3 for the data area and M for the external bus Command history display Input format Function s number of lines Displays a specified number of input lines If the number of lines are not specified the program displays 20 lines The maximum number of lines that can be displayed is 50 To repeat the commands enter to repeat a command on a specific line enter followed by the line number SCU DSP Simulator User s Manual 5 5 Basic Specifications 1 All numerical input except for the number of times a command is repeated entered in decimal are represented in hexadecimal 2 Filenames that end with s or mot when read and saved by the Land W commands are assumed to be in Motorola S format and the address information is processed simultaneously 3 To input a series of commands at once specify the file which contains the com mands as part of the start up parameter or load the commands from a file by specifying lt file from the command line 4 Addresses are in byte units when accessing external bus memory When speci fying an address as an internal address appending L at the end of the address value in the command will increase the value by 4 5 To continue a display from a D S or U command press Returnonly 6 Tips for Use 1 When transferring data from external to internal memory during a DMA simu lation be sure to input or transfer d2. Input format Function s R lt register name flag name gt lt value gt Sets a value to the selected register or flag If a parameter is not specified values for all registers are displayed Values may be set to the following registers Pc TOP LOP CTO CT1 CT2 RX RY PH PL ACH ACL TNO RAO WAO Al Values may be set to the following flags PR EP T1 TO S Z C V E ES EX RQ Sets all the registers to 0 S Step execution of program Input format Function s U Disassemble Input format Function s S number of steps Runs the specified number of instruction steps from the address given by PC register If a parameter is not speci fied only one step is executed U start address end address Displays disassembled data for the selected area If a start address is not specified the address after the last dis played address is entered V Select development targets Input format Function s W Save data to memory Input format Function s VISIM Selects the development target specify M for MODEL M or S for MODEL S Specifying this value enables assembly disassembly and execution functions on these targets Default is set to S When a target is not speci fied the current setting is displayed W P Rn M lt start address gt lt end address gt lt filename gt Saves memory data between the specified start and end addresses to a file Set P to specify the program area RO
3. result from applications based on the examples describe herein It is possible that this document may contain reference to or information about SEGA products development hardware software or services that are not provided in countries other than Japan Such references information must not be construed to mean that SEGA intends to provide such SEGA products or services in countries other than Japan Any reference of a SEGA licensed prod uct program in this document is not intended to state or simply that you can use only SEGA s licensed products programs Any functionally equivalent hardware software can be used instead SEGA will not be held responsible for any damage to the user that may result from accidents or any other reasons during operation of the user s equipment or programs according to this document NOTE A reader s comment correction form is provided with this document Please address comments to SEGA of America Inc Developer Technical Support att Evelyn Merritt 150 Shoreline Drive Redwood City CA 94065 SEGA may use or distribute whatever information you supply in any way it believes appropriate without incurring any obligation to you 11 2 94 002 SEGA SEGA OF AMERICA INC Consumer Products Division SCU DSP Simulator User s Manual Doc ST 240 B 042795 1995 SEGA All Rights Reserved READER CORRECTION COMMENT SHEET Keep us updated If you should come across any in
4. the start ad dress is not specified the program will display the ad dress which comes after the address last displayed E P Rn M lt address gt value Edits memory Set P to specify program area RO R3 for data area and M for the external bus If a value is not specified the program displays an address and waits for data input To step forward through memory addresses enter space en to back up enter and to cancel enter only F Fill memory Input format Function s G Run program Input format Function s F P Rn M lt start address gt lt end address gt lt value gt Rewrites the area between the specified starting and ending addresses with the setting value Set P to specify the program area RO R3 for the data area and M for the external bus G start address end address Runs the program from a specified address If an address is not specified the program is run from an address speci fied by the PC register To cancel during execution enter CTRL C H Set and display history Input format Function s Input format Function s Input format Function s Input format Function s L Read file Input format Function s H Allows data fetches from the history buffer default H Prohibits data fetches from the history buffer H Clears the history buffer H number of steps Displays a specified nu
5. General Notice When using this document keep the following in mind 1 This document is confidential By accepting this document you acknowledge that you are bound by the terms set forth in the non disclosure and confidentiality agreement signed separately and in the possession of SEGA If you have not signed such a non disclosure agreement please contact SEGA immediately and return this document to SEGA This document may include technical inaccuracies or typographical errors Changes are periodi cally made to the information herein these changes will be incorporated in new versions of the document SEGA may make improvements and or changes in the product s and or the program s described in this document at any time No one is permitted to reproduce or duplicate in any form the whole or part of this document without SEGA S written permission Request for copies of this document and for technical information about SEGA products must be made to your authorized SEGA Technical Services representative No license is granted by implication or otherwise under any patents copyrights trademarks or other intellectual property rights of SEGA Enterprises Ltd SEGA of America Inc or any third party Software circuitry and other examples described herein are meant merely to indicate the character istics and performance of SEGA s products SEGA assumes no responsibility for any intellectual property claims or other problems that may
6. ata to the external bus memory of the DSP simulator in advance 2 The disassemble function of the simulator orders commands according to the operation instruction type Therefore this feature can be used as a guide for optimization
7. correct or outdated information while reading through the attached document or come up with any questions or comments please let us know so that we can make the required changes in subsequent revisions Simply fill out all information below and return this form to the Developer Technical Support Manager at the address below Please make more copies of this form if more space is needed Thank you General Information Your Name Document number ST 240 B 042795 Document name SCU DSP Simulator User s Manual Corrections Questions comments Where to send your corrections 415 802 1717 Mail SEGA OF AMERICA Attn Evelyn Merritt Attn Evelyn Merritt Developer Technical Support Developer Technical Support 150 Shoreline Dr Redwood City CA 94065 1 Overview The SCU DSP Simulator was designed to simulate the execution of DSP code under the MS DOS or UNIX operating systems to aid DSP software development All simulator functions are executed via a command line interface Supported functions are listed below 1 Dump display of program and data areas and editing functions 2 S format compatible file load and save functions 3 Breakpoint setting and display functions 4 Program execution and pause functions 5 Single step program execution function 6 Assembling and disassembling functions 7 Display and set functions for all registers 8 History log function for input commands 2 Operating Envir
8. mber of execution results that precede this command If no value is specified the pro gram sets 10 by default The maximum is 512 steps L P Rn M filename transfer destination address Reads a file into memory Set P to specify the program area RO R3 for the data area and M for the external bus If no filename is specified the last file read using the L command is se lected The specified transfer address is used as an offset SCU DSP Simulator User s Manual 3 M Move data within memory Input format Function s P Change program size Input format Function s Q Quit program Input format Function s M P Rn M lt start gt lt end gt P Rn M lt transfer destination address gt Transfers data between the specified start and end address to the specified transfer destination address Set P to specify the program area RO R3 for the data area and M for the external bus If a program area in the transfer destination address is not specified the same area specified in the original source address is used PIRIE Adjusts size of program memory If a parameter is not specified the program displays the current setting If E is specified the program memory expands to store 2048 instructions and when R is speci fied it is returned back to 256 instructions Q Ends the simulator program R Set and display register Input format Function s
9. onment lt A gt MS DOS Version The program must be run on a unit that is compatible with MS DOS Version 3 0 or higher and will run with 640 KB of physical memory lt B gt UNIX Version Compatible with SPARC based and HP workstations 3 List of Commands A Assemble B Set and display breakpoint D Display memory dump E Edit memory F Fill memory G Run program H Set and display history L Read file M Move data within memory Q Quit program R Set and display register S Step execution of program U Disassemble V Select development target W Save contents of memory to file SCU DSP Simulator User s Manual 1 4 Command Descriptions A Assemble Input format Function s A start address This command converts mnemonic input to code and sets it in memory Press Returnto quit B Set and display breakpoint Input format Function s Input format Function s Input format Function s B lt address gt Sets breakpoint B Displays breakpoint setting information B address Or BX number Clears breakpoint If a specific address or number is not specified all breakpoints will be cleared D Display memory dump Input format Function s E Edit memory Input format Function s D P Rn M start address end address Displays memory dump Set P to specify the program area RO R3 for the data area and M for the external bus If
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