1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
%define JASPOS_VERSION "Jaspos Pre Build 1"
%define STACK_SIZE 0xFFFF
; TO DO: Document all functions with parameters, input and output
; o Include full commenting of all instructions in functions.
; Let's get this god damned project into line on the doc
; side and keep it like that
%include "apijmps.asm"
jaspos:
mov ax, cs ; AX = code segment
mov ds, ax ; DS = AX = code segment
mov es, ax ; ES = AX = code segment
add ax, 0x1000 ; semgnet(AX) += 1
mov ss, ax ; SS = code segment + 1 segment
xor dh, dh ; Let's be sure we won't store what crud may be in DH
mov [Drive], dx ; Save the drive number that the bootloader passes to us
mov sp, STACK_SIZE ; Set stack pointer based upon predefined stack size
call jaspos_monitor_clear ; Clear the screen
call jaspos_disk_get_info ; Load the boot disk's info into memory
push msgLoading ; Display a loading message
call jaspos_monitor_dispstring ;
push 0x3000 ; Set the cursor pos for right hand side of screen
call jaspos_monitor_setcursorxy ; Set the cursor position
call jaspos_monitor_updatecursor
push msgPoolClosed ; Print the string
call jaspos_monitor_dispstring ;
call jaspos_bootbanner ; Print our nice banner showing disk number, label etc
;#######################################################################
mov ah, 4
int 0x1A
mov [free_ram + 4], byte 0
push free_ram + 3
push cx
call jaspos_strutils_hex2str
push free_ram
call jaspos_monitor_dispstring
push free_ram + 3
push dx
call jaspos_strutils_hex2str
push free_ram
call jaspos_monitor_dispstring
push msgNewLine
call jaspos_monitor_dispstring
mov ah, 2
int 0x1A
push free_ram + 3
push cx
call jaspos_strutils_hex2str
push free_ram
call jaspos_monitor_dispstring
push free_ram + 3
mov dl, dh
xor dh, dh
push dx
call jaspos_strutils_hex2str
push free_ram + 2
call jaspos_monitor_dispstring
;#######################################################################
%include "panic.asm"
%include "emergencyshell.asm"
.halt:
call jaspos_keyb_getkey
jmp .halt ; Loop
%include "bootbanner.asm" ; monitor.asm - printing to screen etc.
%include "monitor.asm" ; monitor.asm - printing to screen etc.
%include "power.asm" ; power.asm - APM functions
%include "diskio.asm" ; diskio.asm - Functions for talking to floppy disks
%include "keyb.asm" ; keyb.asm - getting keypresses from keyboards etc.
%include "strutils.asm" ; strutils.asm - string length and string processing
%include "strings.asm" ; strings.asm - not to be comfused with strutils.asm string constants in the operating system
free_ram:
|
