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* term: cursor + O(1) line scrollinguser2026-07-162-209/+455
* font: full mixed-case + punctuation glyph set (not uppercase-only)user2026-07-163-197/+208
* term: 40-column text terminal on the CGB LCD (4x8 dynamic tiles)user2026-07-166-1/+604
* fs: reject open()/read() on a directory (EISDIR)user2026-07-166-6/+18
* fs rewrite stage 3: nested directories, paths, cwd (cd/mkdir/ls)user2026-07-1613-49/+463
* fs rewrite stage 2: inodes + root directory (block-based, persistent)user2026-07-1610-308/+697
* fs rewrite stage 1: persistent block device (bounce buffer, cart SRAM)user2026-07-1610-6/+243
* jobs: background execution (&), non-blocking reap, spin demouser2026-07-169-9/+135
* kill + ps: implement SYS_KILL (pid 1 immortal) and a ps tooluser2026-07-1610-5/+260
* shell: I/O redirection (>/<) and pipes (|); rewrite shell in Cuser2026-07-1610-184/+386
* filesystem: a RAM FS (WRAMX) + ls/cat/save/rm; wc/head read filesuser2026-07-1616-29/+697
* libc: option parsing (hasflag/optval); wc -l/-w/-c, head -n Nuser2026-07-164-15/+47
* tools: wc, head, and an argc/argv demo (args) + libc.c helpersuser2026-07-1611-21/+144
* libc + CLI tools: a small C userlanduser2026-07-1613-44/+214
* C toolchain: run SDCC-compiled C programs as gbos processesuser2026-07-1610-1/+165
* shell working: fix syscall ABI (trap clobbers HL) + documentuser2026-07-162-3/+27
* wip: sys_read + serial console shell (read-store bug under investigation)user2026-07-164-72/+179
* kernel: complete the process lifecycle (exit/wait/reap + bank free list)user2026-07-168-80/+353
* kernel: implement exec()user2026-07-166-27/+145
* kernel: implement fork()user2026-07-157-29/+273
* gbos scaffold: working cooperative microkernel (verified ABAB in emulator)user2026-07-1512-0/+878
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