subvergeSource layout
The source tree, file by file. Internals describes how the parts fit together.
boot/
| File | What it is |
|---|---|
boot.asm |
Multiboot header, page tables, long mode, the jump to kmain |
mbr.asm |
the boot sector on installed disks |
stage2.asm |
the second stage, which fakes Multiboot |
See boot.
kernel/
| File | What it is |
|---|---|
main.c |
kmain, which starts everything in order |
cpu.c |
the IDT, the PICs, the PIT, the interrupt and fault handlers |
sched.c |
the four tab tasks and the scheduler |
mem.c |
the heap |
vga.c |
text mode, the per-tab screens, the tab bar, the palette |
font.c |
the omega, aleph and subscript characters |
kbd.c |
the PS/2 keyboard |
disk.c |
ATA PIO |
persist.c |
install, save, the state header and the slots |
line.c |
the prompt's line editor |
omega.c |
the language: parsing, values, lookup, transactions, the GC |
words.c |
the core built-in words |
hw.c |
the machine words: memory, ports, PCI, screen, time |
big.c |
bignums, the integers past 64 bits (numbers) |
ord.c |
ordinals and cardinals |
root.c |
root units, rebuilding them, open and unit |
jit.c |
the JIT |
dis.c |
the disassembler |
help.c |
the help table and the docs check |
scrawl.c |
the editor |
calc.c |
calc, the infix calculator |
sysinfo.c |
sys-c |
lib.c |
string and memory functions, kprintf |
root/
The omega programs, one unit per file, run in file name order. Root lists their contents.
test/
host.c and qdrive.c, and the .qd scripts. See testing.
Where to start reading
Start with kernel/main.c, which brings everything up in order, then read kernel/omega.c outwards from eval_line, which contains the language itself.
