From 4f2d40ca35e0e39886dc881d06256fc25ba27a77 Mon Sep 17 00:00:00 2001 From: user Date: Thu, 16 Jul 2026 12:20:57 +0200 Subject: fs rewrite stage 2: inodes + root directory (block-based, persistent) - fs.asm: a real block filesystem on the persistent block device - superblock, block/inode bitmaps, a 32-entry inode table (type, size, 8 direct block pointers -> files up to 2 KiB), and a root directory of 16-byte entries. Metadata cached in WRAMX; one-block data cache streams file/dir blocks. - same syscall interface (open/getb/putb/list/remove) -> tools unchanged; ls now enumerates until flist() runs out (16 files, was hardcoded 8). - old 8-slot WRAM FS removed; cart RAM partitioned: process banks 0-7, disk 8-11. - two register-clobber bugs fixed: alloc_block/alloc_inode returned the bitmap-block number (write_bitmap clobbers C); db_use loaded the wrong block on a transition (db_flush->write_block clobbers C) -> multi-block files broke. - verified: 10+ files, multi-block (300-byte) files, delete, and persistence across reboots. Debug 'blk' disk tool retained (fill/peek). - README: document the block filesystem. --- c/blk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'c/blk.c') diff --git a/c/blk.c b/c/blk.c index adf2a58..36839c0 100644 --- a/c/blk.c +++ b/c/blk.c @@ -6,7 +6,7 @@ void main(void) { if (argc >= 3 && argv[0][0] == 'f') { bfill(atou(argv[1]), atou(argv[2])); } else if (argc >= 2 && argv[0][0] == 'p') { - putu(bpeek(atou(argv[1]))); nl(); + putu(bpeek2(atou(argv[1]), argc>=3?atou(argv[2]):0)); nl(); } else { puts("usage: blk fill | blk peek "); nl(); } -- cgit v1.3.1-sl0p