The CDP18S651 board includes:
To define a system using the CDP18S651 select 'CDP18S651 FDC' from one of the CARD Choice boxes. Note that only one CDP18S651 can be emulated in Emma 02 as such Emma 02 will issue a warning (CARD button will turn red) if two CDP18S651 boards are defined.
To specify the FDC I/O group press the CARD x button and the CDP18S651 Setup window will open. Press 'SAVE' to save the configuration.
A configuration using the CDP18S651 can be loaded (MS2000 - FDC or MS2000- HD), see also Configurations.
Disk image files can be specified by using the FDC 0 to 4 buttons. Four different disks can be used at the same time. Default setting:
To change the disks (also possible at run time) just select a different filename via the FDC x button or type a name in the text field. To eject a disk use the eject button or remove the filename in the text field.
Instead of using disk image files Emma 02 also supports direct access to the PC hard disk. To use this feature press the double 'arrow' button next to one of the FDC buttons. This will change that specific FDC button into HD. The actual HD directory can be specified by using the HD 0 to 4 buttons. Four different directories can be used at the same time. Default setting:
Any combination of HD or FDC usages is accepted.
Using the HD feature allows for a simple import and export to the PC file system. Next to that the limit of disk size of 310KB is not applicable when using the HD feature. In theory there is no limit of the total size of the directory however the following limitations still exist:
Note: When using the HD Directory option MicroDos commands DIAG, EXAM, FORMAT, FREE, SUBMIT and SYGEN;E are NOT supported.
To start MicroDos first select 'microdos.img' as FDC 0 (or MICRODOS or Software as HD directory), start the Microboard System (including a UT71 ROM) and the UT71 startup message and prompt should show on the terminal. Press L or B 0 and MicroDos will be loaded from FDC 0 (or selected HD directory).
To return to UT71 type U 8000, after this P9000 will restart MicroDos.
For some MicroDos software examples see the Software chapter below, for more details about MicroDos commands see the RCA MPM-241 manual.
Note 1: The MicroDos commands PERTEC and PROM25 are NOT supported in Emma 02.
Note 2: When using the HD Directory option commands DIAG, EXAM, FORMAT, FREE, SUBMIT and SYSGEN;E are also NOT supported.
This chapter is not a PLM or BASIC manual it just shows some examples of how to compile PLM or BASIC as well as how to load and save in the BASIC interpreter. For more details see the RCA MPM-234 Basic 1 Compiler/Interpreter manual and/or the MPM-239A PLM 1800 manual.
Before running the commands below make sure to use the 'HD' configuration, to load this go to 'File/Configuration/Load/MS2000 - HD'. Alternatively set both HD 0 and HD 1 to 'Software'. It is also recommended to use a high clock rate as PLM and ASM8 are rather slow to execute on a 2 MHZ Microboard System.
This example compiles the HELLO.PLM file resulting in HELLO.CM which can be executed from MicroDos. Reason to use the 'Software' directory both for HD 0 and HD 1 is that ASM8 writes the output (.LST) file back to drive 1 if executed from drive 0. All commands given assume that all files are stored on drive 0 (HD 0) and as such in the 'Software' directory. All input commands are shown in bold.
First create the 'assembler' file by compiling the 'PLM' file, this will create a 'HELLO.ASM' and 'HELLO.SYM' file:
>PLM HELLO.PLM PLM COMPILER 2.1 COMPILATION COMPLETEMerge the PLMLIB.ASM with the just created HELLO.ASM into TMP.ASM:
>MERGE TMP.ASM PLMLIB.ASM HELLO.ASM PLMLIB.ASM MERGED HELLO.ASM MERGEDAssemble the TMP.ASM file into an assemble listing file TMP.LST:
>ASM8 TMP.ASM ASM8 VERSION 3.0Convert the assembler listing file TMP.LST into a binary object file HELLO.CM:
>CDSBIN TMP.LST HELLO.CMExecute the program:
>HELLO HELLO
Before running the commands below make sure to use the 'HD' configuration, to load this go to 'File/Configuration/Load/HD'. Alternatively set both HD 0 and HD 1 to 'Software'. It is also recommended to use a high clock rate as PLM and ASM8 are rather slow to execute on a 2 MHZ Microboard System.
This example compiles the EUPH.BAS file resulting in EUPH.CM which can be executed from MicroDos. Reason to use the 'Software' directory both for HD 0 and HD 1 is that ASM8 writes the output (.LST) file back to drive 1 if executed from drive 0. All commands given assume that all files are stored on drive 0 (HD 0) and as such in the 'Software' directory. All input commands and text are shown in bold.
First create the 'assembler' file by compiling the 'BAS' file, this will create a 'EUPH.ASM' file:
>BASIC1.CMP BASIC1 COMPILER V2.0 FOR ASM8 COPYRIGHT RCA CORP. 1982 SELECT UNITS: LIBRARY? BASIC1.LIB READ? EUPH.BAS WRITE? EUPH.ASM ORIGIN? 0 VARS? 7000 STACK? 9000 0 ERRORSAssemble the EUPH.ASM file into an assemble listing file EUPH.LST:
>ASM8 EUPH.ASM ASM8 VERSION 3.0Convert the assembler listing file EUPH.LST into a binary object file EUPH.CM:
>CDSBIN EUPH.LST EUPH.CMExecute the program:
>EUPH THE KINGDOM OF EUPHORIA DO YOU NEED INSTRUCTIONS (Y OR N)?
Before running the commands below make sure to use the 'HD' configuration, to load this go to 'File/Configuration/Load/HD'. Alternatively set both HD 0 and HD 1 to 'Software'.
This example shows how to save and load a program from the BASIC interpreter to disk. All input commands and text are shown in bold.
First start the BASIC interpreter:
>BASIC1.INT BASIC1 INTERPRETER V2.0 COPYRIGHT RCA CORP. 1982Write a short program in BASIC:
:10 PRINT"HELLO WORLD" :10 ENDSave to file PROG.BAS, make sure the specified filename does not exist in the 'Software' directory.
:DOUT PROG.BAS:LIST 1,10000:PR"END":CLOSERestart BASIC with NEW and load the file back:
:RFLN READ? PROG.BAS :DIN : : :Note that loading longer programs could take some time so wait until a few prompts are repeated before giving the next command. To leave the BASIC interpreter type RDOS.