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| author | user <user@clank> | 2026-07-16 07:53:19 +0200 |
|---|---|---|
| committer | user <user@clank> | 2026-07-16 07:53:19 +0200 |
| commit | 7b5c532625a864a3fbaf76f44df6aa99b0d6861e (patch) | |
| tree | 6a6d67644993ccaea4b71bdc0881798887a6d1aa /src/programs.asm | |
| parent | libc: option parsing (hasflag/optval); wc -l/-w/-c, head -n N (diff) | |
| download | gbos-7b5c532625a864a3fbaf76f44df6aa99b0d6861e.tar.gz gbos-7b5c532625a864a3fbaf76f44df6aa99b0d6861e.tar.xz gbos-7b5c532625a864a3fbaf76f44df6aa99b0d6861e.zip | |
filesystem: a RAM FS (WRAMX) + ls/cat/save/rm; wc/head read files
- fs.asm: 8-slot RAM filesystem in WRAMX ($D000-$DFFF), name[8]+len[2]+data[502];
syscalls open/close/getb/putb/list/remove, seeded with a 'readme' at boot.
- libc: open/close/fgetc/fputc/flist/fremove wrappers + O_READ/O_WRITE/NOFD.
- tools: ls, save (stdin->file, one line), rm; cat/wc/head now take a file arg.
- fix: syscall dispatch clobbers A, so putb takes its byte in E (was reading the
handler's low address byte, 0xDC); ls NUL-terminates 8-char names.
- verified: save/cat/ls/rm cycle; wc readme -> '2 7 38'; head -n 1 readme.
- README: document the filesystem + the A-clobber ABI note.
Diffstat (limited to 'src/programs.asm')
| -rw-r--r-- | src/programs.asm | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/programs.asm b/src/programs.asm index a3a6db2..161ee2f 100644 --- a/src/programs.asm +++ b/src/programs.asm @@ -79,6 +79,15 @@ ProgHead: SECTION "prog_args", ROMX[$4000], BANK[14] ProgArgs: INCBIN "c/args.bin" +SECTION "prog_ls", ROMX[$4000], BANK[15] +ProgLs: + INCBIN "c/ls.bin" +SECTION "prog_save", ROMX[$4000], BANK[16] +ProgSave: + INCBIN "c/save.bin" +SECTION "prog_rm", ROMX[$4000], BANK[17] +ProgRm: + INCBIN "c/rm.bin" ; ----------------------------------------------------------------------------- ; PROG_SH (bank 3) - a tiny shell. @@ -217,6 +226,12 @@ ProgSh: db PROG_HEAD db "args", 0 db PROG_ARGS + db "ls", 0 + db PROG_LS + db "save", 0 + db PROG_SAVE + db "rm", 0 + db PROG_RM db 0 ; terminator ; ----------------------------------------------------------------------------- @@ -277,3 +292,9 @@ ProgramTable:: dw ProgHead db LOW(BANK(ProgArgs)), HIGH(BANK(ProgArgs)) dw ProgArgs + db LOW(BANK(ProgLs)), HIGH(BANK(ProgLs)) + dw ProgLs + db LOW(BANK(ProgSave)), HIGH(BANK(ProgSave)) + dw ProgSave + db LOW(BANK(ProgRm)), HIGH(BANK(ProgRm)) + dw ProgRm |