offtopia
/
ponydos
3
0
Fork 1
Code Issues Pull Requests Projects Releases 1 Wiki Activity

Start work on shell

This commit is contained in:
Juhani Krekelä 2023-03-18 01:05:32 +02:00
parent 2a2985640e
commit f39f25a4c1
3 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Makefile
View File

@ -6,8 +6,10 @@ PYTHON = python3
all: ponydos.img
ponydos.img: ponydos.bin wallpaper.bin
$(PYTHON) assemble_floppy.py $@ ponydos.bin wallpaper.bin
FS_FILES = wallpaper.bin shell.bin
ponydos.img: ponydos.bin $(FS_FILES)
$(PYTHON) assemble_floppy.py $@ ponydos.bin $(FS_FILES)
.asm.bin:
$(NASM) -fbin -o $@ $<

11
ponydos.asm
View File

@ -71,6 +71,16 @@ load_wallpaper:
call read_sectors
; TODO: error management? Surely this works...
load_shell:
mov ax, 0x1000
mov es, ax
mov si, shell_name
call open_file
xor bx, bx
call read_sectors
call 0x1000:0
initialize_screen:
; Disable text cursor
mov ah, 0x01
@ -226,6 +236,7 @@ modify_sector:
; ------------------------------------------------------------------
wallpaper_name: db 'wallpaper.bin', 0
shell_name: db 'shell.bin', 0
; in:
; ds:si = file name

2
shell.asm Normal file
View File

@ -0,0 +1,2 @@
org 0
retf