Initial commit, seems to work on my 128EX
This commit is contained in:
Renee Harke
commit
ff75d6c0db
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# https://github.com/AppleCommander/bastools/tree/master/tools/bt
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BT=bt
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# https://github.com/mach-kernel/cadius
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CADIUS=cadius
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# https://cc65.github.io/
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CA65=ca65
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LD65=ld65
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BDIR=build
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ODIR=$(BDIR)/obj
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LDIR=$(BDIR)/lib
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SDIR=src
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RDIR=res
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IMGNAME=laserdump.po
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VOLNAME=LASERDUMP
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# 04=TXT, 06=BIN, FC=BAS, FF=SYS
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attrs.PRODOS = FF0000
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attrs.BASIC.SYSTEM = FF2000
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attrs.STARTUP = FC0801
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attrs.DUMPROMNEW = 064000
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# Add a file to a disk image with Cadius, using the attrs.*
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# map above for the file type/subtype.
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define addfile
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cp $3 $3\#$(attrs.$(notdir $3)) ;
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$(CADIUS) addfile $1 $2 $3\#$(attrs.$(notdir $3)) ;
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rm $3\#$(attrs.$(notdir $3)) ;
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endef
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$(BDIR)/$(IMGNAME): \
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$(RDIR)/PRODOS \
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$(RDIR)/BASIC.SYSTEM \
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$(LDIR)/STARTUP \
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$(LDIR)/DUMPROMNEW
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rm -f $@
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$(CADIUS) createvolume $@ $(VOLNAME) 140KB
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$(foreach f,$^,$(call addfile,$@,/$(VOLNAME),$f))
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$(ODIR)/%.o: $(SDIR)/%.s
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mkdir -p $(ODIR)
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$(CA65) -o $@ $^
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$(LDIR)/%: $(ODIR)/%.o
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mkdir -p $(LDIR)
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$(LD65) -t none -o $@ $^
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$(LDIR)/%: $(SDIR)/%.bas
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mkdir -p $(LDIR)
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$(BT) -o $@ $^
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clean:
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rm -rf build
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# Laser 128 ROM dumper
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This dumps the ROM from a Laser 128 while the system is live. Useful if you don't have an EEPROM programmer/reader of your own.
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I've only tested this on "new style" Laser 128s, with the red badge on the case. The old black and silver badged models might have a different ROM layout, I'm not sure. It wouldn't surprise me, they're radically different pieces of hardware.
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You need to have the Parallel/Serial switch set to Parallel to run. The reason is that the serial firmware for slot 1 is really just a copy of slot 2, so if you have the switch set to Serial, then you get two copies of the serial option ROM and zero copies of the parallel option ROM.
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The only part of this I don't quite understand is that 16 bytes from slot 1 don't end up matching the original ROM. They should be all $FF, but there is an odd pattern there instead. I suspect it is either (a) some convoluted logic with the Parallel/Serial switch or (b) something to do with the port configuration you can set by holding "P" while powering up the machine.
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## ROM layout
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```
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0000 - 00FF = empty (reserved for soft switches)
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0100 - 07FF = C100-C7FF (INTCXROMON)
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0800 - 0FFF = C800-CFFF slot 1 option ROM (INTCXROMON)
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1000 - 1FFF = D000-DFFF ROM
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2000 - 2FFF = E000-EFFF ROM
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3000 - 3FFF = F000-FFFF ROM
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4000 - 40FF = empty (reserved for soft switches)
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4100 - 47FF = C100-C7FF (INTCXROMOFF, SLOTC3ROMON)
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4800 - 4FFF = C800-CFFF Slot 1 option ROM (INTCXROMOFF)
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5000 - 57FF = C800-CFFF Slot 5 option ROM
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5800 - 5FFF = C800-CFFF Slot 2 option ROM
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6000 - 63FF = CB00-CFFF Slot 7 option ROM bank 1
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6400 - 67FF = CB00-CFFF Slot 7 option ROM bank 2
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6800 - 6BFF = CB00-CFFF Slot 7 option ROM bank 3
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6C00 - 6FFF = CB00-CFFF Slot 7 option ROM bank 4
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7000 - 73FF = CB00-CFFF Slot 7 option ROM bank 5
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7400 - 77FF = CB00-CFFF Slot 7 option ROM bank 6
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7800 - 7FFF = C800-CFFF Slot 6 option ROM / CB00-CFFF Slot 7 option ROM bank 7+8
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```
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There's an overlap because the slot 7 banking register uses 3 bits, which gives you 8 banks, but they only use 6. The other two really belong to the slot 7 option ROM. C800-C3FF for slot 7 is actually RAM dedicated to the disk controller.
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## License
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Copyright 2021 Renee Harke
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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@ -0,0 +1,165 @@
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; Copyright 2021 Renee Harke
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;
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; Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
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; associated documentation files (the "Software"), to deal in the Software without restriction,
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; including without limitation the rights to use, copy, modify, merge, publish, distribute,
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; sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
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; furnished to do so, subject to the following conditions:
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;
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; The above copyright notice and this permission notice shall be included in all copies or
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; substantial portions of the Software.
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;
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; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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; NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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; DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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.setcpu "65C02"
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DEST := $42
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SRC1 := $3c
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SRC2 := $3e
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INTCXROMOFF := $c006
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INTCXROMON := $c007
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SLOTC3ROMOFF := $c00a
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SLOTC3ROMON := $c00b
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MOVE := $fe2c
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; Move the block of memory srcbegin:srcend to dest
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.macro mv dest, srcbegin, srcend
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lda #<dest
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sta DEST
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lda #>dest
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sta DEST+1
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lda #<srcbegin
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sta SRC1
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lda #>srcbegin
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sta SRC1+1
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lda #<srcend
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sta SRC2
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lda #>srcend
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sta SRC2+1
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ldy #$00
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jsr MOVE
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.endmacro
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; Bank in a particular slot 7 ROM bank at CC00-CFFF
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; Bank is in bits 4-6, so $00, $10, $20, ... $70.
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.macro s7bank bank
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lda $cfff
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lda $c700
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lda $c0e8
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lda $c0ee
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lda $c0ed
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lda bank
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sta $c0e8
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.endmacro
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; Fill some memory with $FF
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.macro fillff base, len
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.scope
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lda #$ff
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ldy #$00
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loop: sta base,y
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iny
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cpy #len
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bne loop
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.endscope
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.endmacro
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.org $4000
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; jump table
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jmp block0
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jmp block1
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jmp block2
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jmp block3
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; $0000 - $1fff
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block0: fillff $2000,0 ; $C000-C0FF empty (soft switches)
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sta INTCXROMON
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mv $2100,$c100,$c7ff ; $C100-C7FF from main ROM
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sta INTCXROMOFF
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lda $cfff
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lda $c100
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sta INTCXROMON
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mv $2800,$c800,$cfff ; slot 1 option ROM alternate
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sta INTCXROMOFF
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lda $cfff
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fillff $2ff8,8
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mv $3000,$d000,$dfff ; D000-DFFF ROM
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rts
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; $2000 - 3fff
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block1: mv $2000,$e000,$ffff ; E000-FFFF ROM
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rts
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; $4000 - $5fff
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block2: fillff $2000,0 ; $C000-C0FF empty (soft switches)
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sta SLOTC3ROMON
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mv $2100,$c100,$c7ff ; $C100-C7FF from slot ROM
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sta SLOTC3ROMOFF
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fillff $21c0,16 ; not sure, something funky with the ser/par logic
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lda $cfff
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lda $c100
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mv $2800,$c800,$cfff ; slot 1 option ROM
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lda $cfff
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fillff $2ff8,8
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lda $cfff
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lda $c500
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mv $3000,$c800,$cfff ; slot 5 option ROM
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lda $cfff
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fillff $37f8,8
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lda $cfff
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lda $c200
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mv $3800,$c800,$cfff ; slot 2 option ROM
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lda $cfff
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fillff $3ff8,8
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rts
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; $6000 - $7fff
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block3: s7bank #$00
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mv $2000,$cc00,$cfff ; slot 7 option ROM bank 0
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fillff $23f8,8
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s7bank #$10
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mv $2400,$cc00,$cfff ; slot 7 option ROM bank 1
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fillff $27f8,8
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s7bank #$20
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mv $2800,$cc00,$cfff ; slot 7 option ROM bank 2
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fillff $2bf8,8
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s7bank #$30
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mv $2c00,$cc00,$cfff ; slot 7 option ROM bank 3
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fillff $2ff8,8
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s7bank #$40
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mv $3000,$cc00,$cfff ; slot 7 option ROM bank 4
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fillff $33f8,8
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s7bank #$50
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mv $3400,$cc00,$cfff ; slot 7 option ROM bank 5
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fillff $37f8,8
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lda $cfff
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lda $c600
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mv $3800,$c800,$cfff ; slot 6 option ROM
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lda $cfff
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fillff $3ff8,8
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rts
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@ -0,0 +1,17 @@
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10 PRINT CHR$(4) "BLOAD DUMPROMNEW"
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20 PRINT "Make sure slot 5 and 7 are"
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30 PRINT "set to internal, and slot 1"
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40 PRINT "is set to Parallel!"
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50 PRINT
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60 PRINT "Dumping $0000-$1FFF"
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70 CALL 16384
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80 PRINT CHR$(4) "BSAVE ROM0000,A$2000,L$2000"
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90 PRINT "Dumping $2000-$3FFF"
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100 CALL 16384+3
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110 PRINT CHR$(4) "BSAVE ROM2000,A$2000,L$2000"
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120 PRINT "Dumping $4000-$5FFF"
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130 CALL 16384+6
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140 PRINT CHR$(4) "BSAVE ROM4000,A$2000,L$2000"
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150 PRINT "Dumping $6000-$7FFF"
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160 CALL 16384+9
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170 PRINT CHR$(4) "BSAVE ROM6000,A$2000,L$2000"
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