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66 lines
2.5 KiB
Plaintext
66 lines
2.5 KiB
Plaintext
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#+Title: VolksForth Atari ST Notes
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#+Date: <2020-07-22 Wed>
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#+Author: Carsten Strotmann
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* How to re-compile the Atari ST VolksForth kernel
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Requirements:
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* Atari ST computer (or an emulator such as Hatari) running VolksForth
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* Floppy Disk (for a real computer) or a Disk-Image (for the Emulator)
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Files:
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* FORTH83.FB- The VolksForth Kernel source
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* ASSEMBLE.FB- M68000 Forth Assembler
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* TARGET.FB- VolksForth Target Compiler
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* PATCH.FB- The Patch Tool to patch the kernel and load the Fileinterface
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* FILEINT.FB - The File-Interface
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* C.FB - Target Compile "script"
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** Step 1: Compiling a new kernel
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* make your changes to the VolksForth kernel (=FORTH83.FB=)
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* start a fresh copy of VolksForth (File =4TH.PRG=)
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* enter: =include c.fb=. This will compile the kernel. It will load
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the files =ASSEMBLE.FB=, =TARGET.FB= and =FORTH83.FB= and will
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write the generated new kernel as =4THIMG.PRG=. This new Forth
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image is very very basic, it does not contain the file interface
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and can only load source for blocks (sector I/O) from the floppy
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disks A: or B:
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* exit the VolksForth (=BYE=)
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** Step 2: adding the file interface to the new Kernel
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* format a new floppy (360 KB or 720 KB floppy, HD floppies will not
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work) in drive A:
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* copy the following files exactly in this order. The order is
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important, as the new VolksForth kernel need to find the source
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code at the correct block/sector locations!: =PATCH.FB=, =ASSEMBLE.FB=
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and =FILEINT.FB=. =PATCH.FB= must be in Block 1, =ASSEMBLE.FB= must start
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at Block 6 and =FILEINT.FB= must start at Block 24 ($18).
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* execute the new VolksForth kernel (=4THIMG.PRG=).
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* select drive A: =0 drive=
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* test that =PATCH.FB= is in Block 1: =1 list= should show the
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=PATCH.FB= load screen
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* test that =ASSEMBLE.FB= is in Block 6: =6 list= should show the
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=ASSEMBLE.FB= load screen
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* test that =FILEINT.FB= is in Block 24: =24 list= should show the
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=FILEINT.FB= load screen
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* load the patch tool: =1 load=
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* save the new VolksForth Image to disk: =save-system
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4THCORE.PRG=. =4THCORE.PRG= is now the kernel plus the file
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interface. This is a minimal but useable Forth system
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** Step 3: build a full VolksForth system
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* edit the file =STARTUP.FB=, add or remove features you want to have
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in your VolksForth system
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* start =4THCORE.PRG= created in step 2
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* load =STARTUP.FB=: =include startup.fb=
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* save the new image under a new name (be careful not to overwrite
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your original =VOLKS4TH.PRG=, make a backup first!): =save-system myforth.prg=
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* your new VolksForth system is now ready!
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Have fun.
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