orix-software/kernel

Orix Kernel

Orix

Introduction

Orix is designed to work with ORICHD (telestrat) and Twilighte card (atmos). See : http://orix.oric.org

Some code is done by Fabrice Broche (60%) and Jede (40%). Anyway, all minitel and FDC routines had been removed

Assembler : ca65 CPU : 6502 & 65C02 (but 65C02 not tested)

How to use it ?

This kernel is a set of primitives to displays string, open/close/write files ...

You need at least "shell" bank to use this kernel

Build option

Root file on sdcard

Pass to ca65 command line : -DWITH_SDCARD_FOR_ROOT=1 or else it will reads en usb key

here is the list of available "compile option"

• CPU_65C02
• WITH_MULTITASKING
• WITH_ACIA
• WITH_DEBUG : In that case, somes primitives send their debug to printer with a help of kdebug ROM.
• WITH_TWILIGHTE_BOARD

How does it starts

• Kernel tries to start binary set in his rom label 'str_binary_to_start'
• it allocates a process struct (first malloc)
• and register it in processlist

kernel's Issues

When a binary is started from /bin, we must send to A Y command line ptr.

FLERR should be use for kernel_errno

Version must be displayed

BUFEDT should not be used in cc65

XEXEC does not execute bin/ binary folders

A glitch appears in hires

Check that XOPEN manage all patterns ".." "." "../../"

Release should be released in the right url in the repo

XREADDIR should realloc the exact amount of ram when parsing has finished

XHIRES should busy malloc table

XREADBYTES_ROUTINE should be rename into XFREAD_ROUTINE

A & Y should return command line ptr when a binary is launched from /bin

Malloc table must be moved into overlay ram

Kernel should launch a mount at boot without any checks

Manage em driver for cc65

XVALUES must return a struct of a malloc table

Kernel should load o65 files

ctrl+c doit killer le process courant

Bank after help -b5 crash

reloc binary version 2 must release map memory at the end of the relocation

XGETCWD_ROUTINE does not return a copy of the string

XGETCWD_ROUTINE does not return a copy of the string : it returns real offset, it should return a copy of CWD

cd ffffffffffffffffffffffffffffffff crashes prompt

It's mainly because it uses ARGV address.

Github action should detect $5000/$5001, $6000, $6001 because it's debug line

Non relocation binary : kernel does not handle start address, and malloc table does not contains the right "start offset" of the binary ($800 by default)g

XFSEEK

add a SEEK to 0 each type to avoid ch376 bug

opendir/readdir must be done

To check : copy cmdline is done in XFORK AND create_process, it should be only once

[exec] ls crashed when we launched it 4 times

There is a memory leak somewhere (in the kernel)

Remove label

kernel/src/orix.inc

Line 6 in 0aefe29

ORIX_ROUTINES := $FFE0

XFWRITE does not work on ch376 firmware 4

Test reloc binaries

When command is not found with XEXEC, it still work (displays debug command in shell)

insert current process id in the main process struct

close_all_fp_from_current_process destroy all FD of all process

Markdown for orix must be updated

when path relative is set, XOPEN is broken

manage multiple file

XMALLOC : free chunk slot are not merged with the main free chunk in some case

occurs when we launch from loader menu a basic command : the size of the db is free, but is not merged into main free chunk

FREE macro must use pointer not immediates values

When a binary is loaded from sdcard, we must allocate it in malloc table

"vi[Espace]" -> xmainargs computes 2 args, with the second arg which contains only '\0'

parse_vector reference should be deleted

XMAINARGS : XMALLOC should be done with the exact length of the command line.

Xmainargs primitive must be created

Quand on fait reset + s, il faudrait faire un swapfs

Bug str 13 chars

kernel/src/functions/XOPEN.asm

Line 137 in 27235f2

cpy #_KERNEL_FILE::f_path+13 ; Max

systemd malloc consumes all memory even when ptr is released (mfree)

in relocation format, relocation table must be removed from memory

xmkdir is broken