Local project builder for emulator disk images
Install Appy then create an
appy.yaml project definition file.
Run Appy to assemble, build, and run your source. Or do all 3 with:
What this solves
We often need to assemble projects locally, but that is only part of the equation for people writing project to run under emulation.
The second step is taking our assembled binaries, and combining them with any other assets, data files, operating system files, et cetera, into a single disk image for use with an emulator.
Often this is handled by a set of scripts the author has locally in the projects. However this leads to problems when collaborating with other people or building pipelines.
Problem 1: You need to not only provide the scripts, but also the build tools they use, at the correct version.
Problem 2: The scripts often contain bespoke logic for things like handling filetypes or where to place files on the disk image.
Appy abstracts the tools away from a script mindset, and into a project mindset. Currently the tool paths are hardcoded but next versions will include dynamic tool providers, including vendoring from internet sources!
The project file
Appy uses an
appy.yaml file in the current project directory. The basic format is as follows:
assemble: [main.s, grafix.s, snd.s, a.s, b.s] # <--- list of files to assemble with Merlin assembleflags: "-V" # <--- optional flags to Merlin, including macro directory indent: [c.s] # <--- optional additional files to indent when running `appy fmt` formatflags: "mc:10 oc:14 cc:30 ms:1 bs:2" # <--- optional flags to indent disks: # <--- define disks, can be more than one, handy for 140K + 800K - name: mydiskimage # <---- each disk has a name (ProDOS volume name) file: mydiskimage800.2mg # <---- each disk has a filename for the image it creates size: 800KB # <---- each disk has a size (valid Cadius sizes) files: # <---- each disk has zero or more files - input: ../PRODOS.2.4.2/PRODOS # <---- each file has an input location (on your host system) output: /mydiskimage # <---- ... and an output location (on the ProDOS disk image) - input: testsrc/sp.s output: /mydiskimage - input: ../modsearch/potential/eclipse.ntp output: /mydiskimage ftaux: #B30000 # <---- ... and option filetype/auxtype info (not sure if working)
What if your copy of Merlin32 (assembler) is in a different location than your teammate's? You can set up local binary overrides with an
appy.user.yaml file in the same directory. It allows the following 3 program settings:
# local system settings/overrides programs: merlin32: 'G:\My Drive\appleiigs\tools\merlin32-windows-v1.1.10\Merlin32.exe' cadius: 'G:\My Drive\appleiigs\tools\Cadius.exe' gsplus: 'myproj\gsplus'
Appy has a verb command structure (sorta like git) for executing the various functions.
$ appy asm # assemble all files $ appy disk # create all disk images and add all files $ appy run # launch an emulator $ appy build # assemble files and make disk, aka 'asm'+'disk' $ appy brun # assemble files, make disk, and launch emulator # aka 'asm'+'disk'+'run' $ appy fmt # format/indent your assembly file in appy.yaml # you can also pass in filename(s) to format
About the built-in code formatter
Appy uses the MerlinGo formatter to indent source code. You can override the default indentation with the various options documented here.
mc: mnemonic column, where instructions start
oc: opcode column
cc: comment column
ms: min space, the minimum amount of space it will allow between two columns
You can define these in your
appy.yaml project file like so:
formatflags: "mc:10 oc:14 cc:30 ms:1"
You can also set it in files directly by adding it as a comment marked
ed: on any line of the file like:
* ed: mc=40 oc=26 cc=48 ms=5 <- indentation modeline
org $2000 ; ed: mc=40 oc=26 cc=48 ms=5 <- indentation modeline lda ...
Again either comment style works on any line of the file, but don't add more than one modeline per file.
Also, if you set format options at the project AND file level, then Appy will use the project defaults except when a file specifies its own settings, then it will respect the file settings instead.
This is an early experimental version not intended for public use.
Versioning/vendoring binaries from external sources not yet implemented but all core functionality exists including local binary overrides.
go mod tidyto install dependencies
go build & go installto build and install