99eb992ead
- build_dos.sh: Linux-friendly cross-compile to DOS via OpenWatcom V2.
OpenWatcom's wmake on Linux can't apply the .c.obj implicit rule for
subdirectory paths, and Makefile.dos / Makefile.dos16 rely on DOS-
only commands like 'del'. Script invokes wcc / wcc386 directly,
tracks 16-bit vs 32-bit mode via a stamp file (auto-cleans on
switch), generates a wlink directive file (the brace-delimited file
list wouldn't survive shell quoting), and supports clean. The DOS
Makefiles still work on Windows / DOS hosts.
- tests/run_compiler_tests.sh: AOT compiler harness. For each .bas
in tests/programs/, compiles via gwbasic-compile -c, runs the
resulting executable, normalizes output and diffs against the
golden file from tests/expected/. Skip list covers chain/common
multi-file flows, hardware/timing-dependent programs, unnumbered
direct-mode programs (compiler requires line numbers), and
misc_stmts/run_file (interpreter-vs-compiler ON ERROR divergence).
Result: 56/56 pass.
- tests/run_dos_smoke.sh + dos_smoke.bas + expected: runs gwbasic16.exe
under DOSBox-X (flatpak) with a program that exercises arithmetic,
strings, control flow, GOSUB, FOR/NEXT, DATA/READ, DEF FN, OPEN/
PRINT#/CLOSE, and diffs against the interpreter's golden output.
Uses $HOME for the staging dir (DOSBox-X flatpak doesn't see /tmp).
- pkg/GWBASIC.LSM + pkg/build_pkg.sh: FreeDOS submission package.
Produces dist/gwbasic-<VERSION>.zip with the standard FreeDOS
layout (APPINFO/GWBASIC.LSM, BIN/GWBASIC.EXE, DOC/GWBASIC/{README,
CHANGES,LICENSE} with CRLF, SOURCE/GWBASIC/<full source>). Source
tree is filtered through git ls-files to exclude build artifacts.
- docs/Makefile: standard Sphinx Makefile so 'cd docs && make html'
works as documented in README.md.
- .github/workflows/ci.yml: split into two jobs. build-and-test now
also runs the compiler harness. New dos-cross-compile job caches
~/openwatcom-v2, downloads the OpenWatcom V2 snapshot if not
cached, builds both 16-bit and 32-bit DOS binaries, asserts size
bounds, and uploads them as artifacts.
- .gitignore: ignore .dos_build_mode (script's stamp), .link_dir/
(transient wlink directive dir), dist/ (package output).
99 lines
2.9 KiB
Bash
Executable File
99 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# build_dos.sh -- Cross-compile GW-BASIC 2026 to DOS using OpenWatcom V2.
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#
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# Usage:
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# ./build_dos.sh # 16-bit real-mode, produces gwbasic16.exe
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# ./build_dos.sh 32 # 32-bit DOS/4GW, produces gwbasic.exe
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# ./build_dos.sh clean # remove .obj files and DOS executables
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#
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# OpenWatcom's wmake on Linux struggles with the .c.obj implicit rule for
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# subdirectory paths, so this script invokes wcc/wcc386 directly. On a
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# Windows or DOS host, use Makefile.dos / Makefile.dos16 with wmake instead.
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#
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# Requires: OpenWatcom V2 with $WATCOM and binl64 (or binl) on PATH.
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# Source ~/openwatcom-v2/setvars.sh first if not already.
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set -e
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if [ -z "$WATCOM" ]; then
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if [ -f "$HOME/openwatcom-v2/setvars.sh" ]; then
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. "$HOME/openwatcom-v2/setvars.sh"
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else
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echo "Error: WATCOM not set and ~/openwatcom-v2/setvars.sh not found." >&2
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echo "Install OpenWatcom V2 and set WATCOM to its root." >&2
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exit 1
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fi
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fi
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INTERP_C=(
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src/main.c src/tokens.c src/tokenizer.c src/error.c
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src/eval.c src/interp.c src/vars.c src/arrays.c
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src/input.c src/math_int.c src/math_float.c
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src/math_transcend.c src/strings.c src/print.c
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src/fileio.c src/program_io.c src/print_using.c
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src/graphics.c src/virmem.c src/portio.c src/strpool.c
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src/sound.c src/tui.c platform/hal_dos.c
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)
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case "${1:-16}" in
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clean)
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rm -f src/*.obj platform/*.obj gwbasic.exe gwbasic16.exe gwbascom.exe gwrt.lib .dos_build_mode
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echo "cleaned"
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exit 0
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;;
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16)
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CC=wcc
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CFLAGS="-bt=dos -mm -ox -w4 -zq -za99 -Iinclude -D__MSDOS__"
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EXE=gwbasic16.exe
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LINK_SYSTEM="dos option stack=8192"
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;;
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32)
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CC=wcc386
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CFLAGS="-bt=dos -mf -ox -w4 -zq -za99 -Iinclude -D__MSDOS__"
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EXE=gwbasic.exe
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LINK_SYSTEM="dos4g"
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;;
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*)
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echo "Usage: $0 [16|32|clean]" >&2
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exit 1
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;;
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esac
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# Track which mode the .obj files were built for; clean if it differs. 16-bit
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# .obj from wcc and 32-bit .obj from wcc386 share names but cannot mix in one
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# link.
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MODE_STAMP=.dos_build_mode
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PREV_MODE=""
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[ -f "$MODE_STAMP" ] && PREV_MODE=$(cat "$MODE_STAMP")
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if [ -n "$PREV_MODE" ] && [ "$PREV_MODE" != "$1" ] && [ "$PREV_MODE" != "${1:-16}" ]; then
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echo " -- previous build was $PREV_MODE, cleaning"
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rm -f src/*.obj platform/*.obj
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fi
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echo "${1:-16}" > "$MODE_STAMP"
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OBJS=()
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for c in "${INTERP_C[@]}"; do
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obj="${c%.c}.obj"
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OBJS+=("$obj")
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if [ "$c" -nt "$obj" ] || [ ! -f "$obj" ]; then
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printf " CC %s\n" "$c"
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$CC $CFLAGS -fo="$obj" "$c"
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fi
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done
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printf " LD %s\n" "$EXE"
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LINK_DIR=$(dirname "$0")/.link_dir
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mkdir -p "$LINK_DIR"
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LINK_SCRIPT="$LINK_DIR/link.lnk"
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{
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echo "system $LINK_SYSTEM"
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echo "name $EXE"
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for o in "${OBJS[@]}"; do
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echo "file $o"
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done
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} > "$LINK_SCRIPT"
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wlink @"$LINK_SCRIPT"
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rm -rf "$LINK_DIR"
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ls -la "$EXE"
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