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gbos - a tiny Unix-flavored OS for the Game Boy Color (kernel, shell, coreutils in C, RAM filesystem)
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Author
Age
Files
Lines
*
term/osk: scroll region so the OSK never hides the input line
user
10 days
3
-12
/
+69
*
osk: bind START to Enter (CR)
user
10 days
1
-0
/
+7
*
sh: handle backspace in readline; prompt is now '#'
user
10 days
1
-1
/
+14
*
osk: wrap the cursor around all four edges
user
10 days
1
-19
/
+27
*
osk: toggle-able on-screen keyboard on the window layer
user
10 days
5
-7
/
+411
*
syscall: mirror console output to the LCD terminal
user
10 days
3
-2
/
+18
*
term: cursor + O(1) line scrolling
user
10 days
2
-209
/
+455
*
font: full mixed-case + punctuation glyph set (not uppercase-only)
user
10 days
2
-102
/
+102
*
term: 40-column text terminal on the CGB LCD (4x8 dynamic tiles)
user
10 days
3
-0
/
+482
*
fs: reject open()/read() on a directory (EISDIR)
user
10 days
1
-0
/
+10
*
fs rewrite stage 3: nested directories, paths, cwd (cd/mkdir/ls)
user
10 days
5
-36
/
+360
*
fs rewrite stage 2: inodes + root directory (block-based, persistent)
user
10 days
4
-260
/
+616
*
fs rewrite stage 1: persistent block device (bounce buffer, cart SRAM)
user
10 days
4
-1
/
+178
*
jobs: background execution (&), non-blocking reap, spin demo
user
10 days
2
-0
/
+65
*
kill + ps: implement SYS_KILL (pid 1 immortal) and a ps tool
user
10 days
4
-3
/
+202
*
shell: I/O redirection (>/<) and pipes (|); rewrite shell in C
user
10 days
4
-154
/
+193
*
filesystem: a RAM FS (WRAMX) + ls/cat/save/rm; wc/head read files
user
10 days
5
-2
/
+486
*
tools: wc, head, and an argc/argv demo (args) + libc.c helpers
user
10 days
1
-0
/
+21
*
libc + CLI tools: a small C userland
user
10 days
1
-3
/
+68
*
C toolchain: run SDCC-compiled C programs as gbos processes
user
10 days
1
-0
/
+13
*
shell working: fix syscall ABI (trap clobbers HL) + document
user
10 days
1
-1
/
+5
*
wip: sys_read + serial console shell (read-store bug under investigation)
user
10 days
3
-72
/
+177
*
kernel: complete the process lifecycle (exit/wait/reap + bank free list)
user
10 days
6
-76
/
+325
*
kernel: implement exec()
user
10 days
4
-25
/
+118
*
kernel: implement fork()
user
10 days
5
-27
/
+249
*
gbos scaffold: working cooperative microkernel (verified ABAB in emulator)
user
10 days
8
-0
/
+653