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spathiwaspathiwa
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Initial github checkin of CCGMS Term 5.5, 6502 assembly source code
for Commodore Color Graphics Manipulaton System Terminal, modified to build with the cc65/ca65 cross assembler.
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‎.gitattributes

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original/* binary

‎.gitignore

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*~
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*.o
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*.lst
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./*.d64
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obj
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ccgmsterm
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ccgmsterm5.5

‎Makefile

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#
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# Makefile for CCGMS Term, resurrected from antiquity, September 2016
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# (C) Craig Smith, 2016
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# Permission is granted to modify and redistribute this software under
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# the terms of the GPL v3, see LICENSE for details.
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#
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# Building requires cc65 6502 cross-compiler package;
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# see http://cc65.github.io/cc65 or 'git clone https://github.com/cc65/cc65.git'
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# to build yourself.
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# Optionally creating a .d64 image of the resulting C64 prg requires the c1541
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# utility from VICE in your path.
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OUTPUT_PRG = ccgmsterm
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D64IMAGE = ccgmsterm.d64
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SRC = ccgmsterm.s
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LSTF = $(SRC:.s=.lst)
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OBJF = $(SRC:.s=.o)
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OBJDIR = obj
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OBJ = $(OBJF:%=$(OBJDIR)/%)
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LST = $(LSTF:%=$(OBJDIR)/%)
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# Define HISTORICAL=1 below to re-enable script-kiddie protection
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# (and a baud rate bug), so the assembled output is exactly like
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# the historical CCGMS Term 5.5
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# Or just use the 'make history' rule [sorry :-)]
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#
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HISTORICAL?=0
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ifneq (0,$(HISTORICAL))
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HISTARG = -Dhistorical=$(HISTORICAL)
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HISTENCODE = encode
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endif
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all: term image
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echo $(OBJ)
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term: $(OUTPUT_PRG) $(HISTENCODE)
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$(OBJ): $(SRC) $(OBJDIR)
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ca65 $(HISTARG) -t c64 -l $(LST) $(SRC) -o $(OBJ)
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$(OUTPUT_PRG): precheck $(OBJDIR) $(OBJ)
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cl65 $(HISTARG) -t c64 -C c64-asm.cfg $(OBJ) -o $(OUTPUT_PRG)
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@echo $(OUTPUT_PRG) created.
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$(OBJDIR):
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@mkdir -p $(OBJDIR)
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encode: $(OUTPUT_PRG)
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mv $(OUTPUT_PRG) $(OUTPUT_PRG).pre && \
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perl encode.pl $(OUTPUT_PRG).pre > $(OUTPUT_PRG) && \
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rm -f $(OUTPUT_PRG).pre
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image: $(OUTPUT_PRG)
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@c1541 -h >/dev/null 2>&1 || (echo "c1541 not found in path; skipping creation of .d64 image." ; exit 0)
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@dd if=/dev/zero of=$(D64IMAGE) bs=256 count=683 >/dev/null 2>&1
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c1541 -attach $(D64IMAGE) -format "ccgmsterm 5.5,cg" -write $(OUTPUT_PRG) -list
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history: # couldn't resist
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@make HISTORICAL=1 OUTPUT_PRG=ccgmsterm5.5 term image
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hclean:
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@make HISTORICAL=1 OUTPUT_PRG=ccgmsterm5.5 clean
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clean:
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rm -f $(OBJ) $(LST) $(OUTPUT_PRG) $(D64IMAGE) ./*~
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@test -d $(OBJDIR) && rmdir $(OBJDIR) || exit 0
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precheck:
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@cl65 >/dev/null 2>/dev/null || (echo "cl65 6502 assembler is not in path." && exit 1)
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@(cl65 -V 2>&1 | egrep 'V2\.1[56789]|V2\.[23456789]|V[3456789]\.') > /dev/null || (echo Requirement ca65 version 2.15 or later not found && cl65 -V && exit 1)
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.PHONY: precheck encode history image
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‎README.md

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# ccgmsterm
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**CCGMS Term _(6502 assembly source for Commodore 64)_**
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**Copyright (C) Craig Smith, 1986-1988, 2016**
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*Resurrected and released to world September 5, 2016.
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Permission is granted to modify and distribute this work under
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the terms of the GNU General Public License, version 3.
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See LICENSE file for details.*
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Version 5.5 (ported to build with ca65)
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The file ccgmsterm.s contains combined source from the original SEQ files
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(named 5a.gs,5b.gs,5c.gs and 5d.gs) in CBM Assembler 64 format and chained
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together using .FIL directives because the entire source could not
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fit into a C64's memory using the CBM editor. The encoding of this
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file has been converted to ASCII (with lowercase labels), and strings
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containing the PETSCII left arrow character ($5F) have been changed
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to its numeric code so modern or cross-platform assemblers do not
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treat it as an underscore.
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This source can be compiled using the ca65 portable 6502 compiler.
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Except for the conversion to ASCII and the addition of feature
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and conditional directives (.feature/.if/.endif), the format of
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this file remains compatible with CBM Assembler 64.
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(The .feature directives below enable this compatibility.)
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*DEPENDENCIES*
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You need ca65 (https://github.com/cc65/cc65.git) to build this,
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and the c1541 tool from the VICE emulator (http://vice-emu.sourceforge.net)
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to create a .d64 disk image out of it.

‎c64-asm.cfg

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FEATURES {
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STARTADDRESS: default = $0801;
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}
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SYMBOLS {
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__LOADADDR__: type = import;
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}
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MEMORY {
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ZP: file = "", start = $0002, size = $00FE, define = yes;
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LOADADDR: file = %O, start = %S - 2, size = $0002;
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MAIN: file = %O, start = %S, size = $D000 - %S;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp, optional = yes;
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LOADADDR: load = LOADADDR, type = ro;
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EXEHDR: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = rw;
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RODATA: load = MAIN, type = ro, optional = yes;
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DATA: load = MAIN, type = rw, optional = yes;
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BSS: load = MAIN, type = bss, optional = yes, define = yes;
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}

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