mirror of https://github.com/marketideas/qasm.git
55 lines
2.3 KiB
Plaintext
55 lines
2.3 KiB
Plaintext
Merlin Compatible assembler/linker (and more) for linux
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This project is FAR from complete...as I have just gotten it to compile all 256 65816 opcodes.
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Update (11/19/2019) - All code generating opcodes/psuedo-ops complete.
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The program will read/compile linux based Merlin syntax files (.s), as well as original Merlin
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8/16/16+ files in Merlin format
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(high bit set), compressed spaces, and only a <CR> to end lines. I plan on adding a mode that
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will process and convert to linux style so files can be converted for easy editing under linux.
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Merlin32 is great, but there are aspects of it that I don't like (always outputting assembly
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status and creating .txt file listings, etc)
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Along time ago, in the mid 1980's I wrote a Merlin compatible assembler and programming shell
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(with the help of Lane Roathe) for the Apple //GS
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Recently, Lane sent me the source code to that assembler. Unfortunately, because of some of the
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features we added to the assembler, it will not compile under Merlin or Merlin32. (We actually used
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qasm to build qasm).
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This project will be a linux compatible version, that will compile/link the original source.
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However, due to speed and everything 'linux' I doubt the original will be used much.
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I also would like to interface with the CiderPress library to allow output from the assembler/linker
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to write files directly to Prodos based .2MG (or other) images. That way, after a compile, the code
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under test can be immediately run from a GS emulator.
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This early version relies on the Poco Foundation libraries. You must have these installed.
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Additionally, this repo relies on another repo here called 'libpal'. Both repositories must
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be cloned at the same level.
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libpal does not have to be built. The 'qasm' compile will build all of those source files.
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'cmake' is used to build the Makefiles. There is a generic Makefile in the base directory that does
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all of the 'cmake' stuff for you. (in a 'build' directory)
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For example:
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mkdir workdir
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cd workdir
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git clone git://github.com/marketideas/libpal libpal
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git clone git://github.com/marketideas/qasm qasm
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cd qasm
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make clean
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make
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To test:
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./qasm src/testfile.s
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Some notes on compatibility:
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ERR does not support the ($300)-$4C style of checking, because we are not running on Apple // hardware, so there is no need to check for a USR vector having been setup in this manner.
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