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split the rom-ram-sys.fth file into a c16 and a c64 variant - skipping

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entire screens gated by (C64 doesn't work well with stream sources. :-)
This commit is contained in:
Philip Zembrod 2024-06-16 16:49:49 +02:00
parent eff900d842
commit a14e742619
3 changed files with 21 additions and 20 deletions
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5
6502/C64/RELEASE_NOTES.md
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@ -22,13 +22,14 @@ The latest release zip file `volksforth-6502-c64-release.zip` contains
* `v4th*.fth` - the binaries' main files
* `vf-*.fth` - sources from which VolksForth
kernels are compiled
* `6502asm.fth` - the 6502 assembler, needed to compile Code words
* `6502asm.fth` - the 6502 assembler, needed to compile `Code` words
* `trns6502asm.fth` - the transient 6502 assembler. It lives on the
heap and is removed by `clear`. This allows building applications that
have code words but don't carry the assembler itself after saving.
* `tmp6502asm.fth` - like the transient 6502 assembler, but living on the
tmpheap instead of the heap. See below for tmpheap.
* `rom-ram-sys.fth`
* `rom-ram-c16.fth` - macros for C16 bank switching
* `rom-ram-c64.fth` - macros for C64 bank switching
* `tracer.fth` - the debugger
* `tasker.fth` - the multitasker
* `multitask.fth` - the small bit of assembly code needed by tasker.fth

22
6502/C64/src/rom-ram-sys.fth → 6502/C64/src/rom-ram-c16.fth
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@ -1,4 +1,3 @@
\ *** Block No. 2, Hexblock 2
\ rom ram sys cas16aug06
\ Shadow with Ctrl+W--->
@ -7,36 +6,23 @@
\ in the ROM Area
Assembler also definitions
(16 \ Switch Bank 8000-FFFF
\ Switch Bank 8000-FFFF
: rom here 9 + $8000 u> abort" not here"
$ff3e sta ;
: ram $ff3f sta ;
: sys rom jsr ram ;
\ if suffering from abort" not here"
\ see next screen Screen --> C)
\ see next screen Screen
(64 \ Switch Bank A000-BFFF
: rom here 9 + $A000 u> abort" not here"
$37 # lda 1 sta ;
: ram $36 # lda 1 sta ;
C)
\ *** Block No. 3, Hexblock 3
\ sysMacro Long cas16aug06
(64 .( not for C64 !) \\ C)
\ for advanced users, use macros
\ the following macro must be compiled well
\ below the address of $8000 to work.
here $8000 $20 - u> ?exit \ not possible
' 0 | Alias ???
Label long ROM

14
6502/C64/src/rom-ram-c64.fth Normal file
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@ -0,0 +1,14 @@
\ rom ram cas16aug06
\ macros switching the C64 BASIC ROM ($A000-$Bfff)
\ on and off. By default VolksForth runs with BASIC ROM
\ switched off.
Assembler also definitions
\ Can't swich on BASIC ROM (A000-BFFF) if current code
\ location is under the BASIC ROM.
: rom here 9 + $A000 u> abort" not here"
$37 # lda 1 sta ;
: ram $36 # lda 1 sta ;