2023-09-03 10:03:51 -05:00
|
|
|
.global _start
|
|
|
|
|
|
|
|
|
|
_start:
|
|
|
|
|
call get_free_frame
|
|
|
|
|
ld b, c
|
|
|
|
|
ld e, l
|
|
|
|
|
ld d, h
|
|
|
|
|
ld c, 0x9
|
|
|
|
|
call set_frame
|
|
|
|
|
call get_free_frame
|
|
|
|
|
ld a, c
|
|
|
|
|
ld (send_page_addr), a
|
|
|
|
|
ld (send_page_addr+1), hl
|
|
|
|
|
ld b, c
|
|
|
|
|
ld e, l
|
|
|
|
|
ld d, h
|
|
|
|
|
ld c, 0x8
|
|
|
|
|
call set_frame
|
|
|
|
|
ld hl, 0x9000
|
|
|
|
|
ld de, 0x9001
|
|
|
|
|
ld bc, 0x1000
|
|
|
|
|
ld (hl), 0x0
|
|
|
|
|
ldir
|
|
|
|
|
call get_free_mailbox
|
|
|
|
|
push hl
|
2023-09-17 11:02:33 -05:00
|
|
|
ld de, 2
|
2023-09-03 10:03:51 -05:00
|
|
|
call proc_map_set
|
|
|
|
|
pop hl
|
|
|
|
|
ld (vfs_mailbox_num), hl
|
|
|
|
|
call get_free_mailbox
|
|
|
|
|
ld (fs_mailbox_num), hl
|
|
|
|
|
msg_loop:
|
|
|
|
|
call yield
|
|
|
|
|
yield_back:
|
|
|
|
|
ld hl, (vfs_mailbox_num)
|
|
|
|
|
call mb_read
|
|
|
|
|
mb_read_done:
|
|
|
|
|
ld a, b
|
|
|
|
|
cp 1
|
|
|
|
|
jp z, msg_loop
|
|
|
|
|
msg_read:
|
|
|
|
|
push bc
|
|
|
|
|
push de
|
|
|
|
|
push hl
|
|
|
|
|
ld b, c
|
|
|
|
|
ld c, 0xB
|
|
|
|
|
call set_frame
|
|
|
|
|
set_frame_done:
|
|
|
|
|
ld hl, (0xB000) ; Load destination mailbox into HL and save it on the stack
|
|
|
|
|
push hl
|
|
|
|
|
ld hl, 0xB002
|
|
|
|
|
; Handling code goes here
|
|
|
|
|
ld a, (hl)
|
|
|
|
|
inc hl
|
|
|
|
|
cp 0x0
|
|
|
|
|
jp z, register_fs
|
|
|
|
|
cp 0x1
|
|
|
|
|
jp z, mount
|
|
|
|
|
operation_done:
|
|
|
|
|
pop hl
|
|
|
|
|
pop ix
|
|
|
|
|
pop de
|
|
|
|
|
pop bc
|
|
|
|
|
call mb_send
|
|
|
|
|
jp msg_loop
|
|
|
|
|
|
|
|
|
|
register_fs:
|
|
|
|
|
ld a, (fs_count)
|
|
|
|
|
ld l, a
|
|
|
|
|
ld h, 0x0
|
|
|
|
|
add hl, hl
|
|
|
|
|
add hl, hl
|
|
|
|
|
add hl, hl
|
|
|
|
|
add hl, hl
|
|
|
|
|
ld de, data_fs_offset
|
|
|
|
|
add hl, de
|
|
|
|
|
ld de, 0x9000
|
|
|
|
|
add hl, de
|
|
|
|
|
push hl
|
|
|
|
|
pop de
|
|
|
|
|
ld hl, 0xB003
|
|
|
|
|
ld bc, 16
|
|
|
|
|
ldir
|
|
|
|
|
ld a, (fs_count)
|
|
|
|
|
inc a
|
|
|
|
|
ld (fs_count), a
|
2023-09-17 11:02:33 -05:00
|
|
|
jp operation_done
|
2023-09-03 10:03:51 -05:00
|
|
|
|
|
|
|
|
; String pointer 1 in IX, 2 in IY
|
|
|
|
|
; Return in A
|
|
|
|
|
strcmp:
|
|
|
|
|
strcmp_loop:
|
|
|
|
|
ld a, (iy)
|
|
|
|
|
ld b, a
|
|
|
|
|
ld a, (ix)
|
|
|
|
|
cp b
|
|
|
|
|
jp nz, strcmp_loopend
|
|
|
|
|
cp 0
|
|
|
|
|
ret z
|
|
|
|
|
inc ix
|
|
|
|
|
inc iy
|
|
|
|
|
jp strcmp_loop
|
|
|
|
|
strcmp_loopend:
|
|
|
|
|
ld a, (iy)
|
|
|
|
|
ld b, a
|
|
|
|
|
ld a, (ix)
|
|
|
|
|
sub b
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
mount:
|
|
|
|
|
ld a, (mount_count)
|
|
|
|
|
ld l, 0x0
|
|
|
|
|
ld h, a
|
|
|
|
|
ld de, data_mount_offset
|
|
|
|
|
add hl, de
|
|
|
|
|
ld de, 0x9000
|
|
|
|
|
add hl, de
|
|
|
|
|
push hl
|
|
|
|
|
pop de
|
|
|
|
|
push de
|
|
|
|
|
ld hl, 0xB003
|
|
|
|
|
ld bc, 252
|
|
|
|
|
ldir
|
|
|
|
|
; FS type at 0xB1FF
|
|
|
|
|
ld a, (fs_count)
|
|
|
|
|
ld b, a
|
|
|
|
|
ld hl, data_fs_offset + 0x9000
|
|
|
|
|
ld de, 0x10
|
|
|
|
|
mount_loop1:
|
|
|
|
|
push hl
|
|
|
|
|
pop ix
|
2023-09-17 11:02:33 -05:00
|
|
|
ld iy, 0xB1FF
|
2023-09-03 10:03:51 -05:00
|
|
|
push bc
|
|
|
|
|
call strcmp
|
|
|
|
|
pop bc
|
|
|
|
|
cp 0
|
|
|
|
|
jp mount_loop1_done
|
|
|
|
|
add hl, de
|
|
|
|
|
djnz mount_loop1
|
|
|
|
|
mount_loop1_done:
|
|
|
|
|
ld de, 14
|
|
|
|
|
add hl, de
|
|
|
|
|
pop ix
|
|
|
|
|
ld de, 252
|
|
|
|
|
add ix, de
|
|
|
|
|
ld e, (hl)
|
|
|
|
|
inc hl
|
|
|
|
|
ld d, (hl)
|
|
|
|
|
ld (ix), e
|
|
|
|
|
ld (ix+1), d
|
|
|
|
|
push ix
|
|
|
|
|
ld a, 0x2
|
|
|
|
|
ld (0x8000), a
|
2023-09-17 11:02:33 -05:00
|
|
|
push de
|
2023-09-03 10:03:51 -05:00
|
|
|
ld hl, 0xB0FF
|
|
|
|
|
ld de, 0x8001
|
|
|
|
|
ld bc, 256
|
|
|
|
|
ldir
|
|
|
|
|
ld a, (send_page_addr)
|
|
|
|
|
ld c, a
|
|
|
|
|
ld de, (send_page_addr+1)
|
|
|
|
|
ld ix, 0x0
|
2023-09-17 11:02:33 -05:00
|
|
|
pop hl
|
2023-09-03 10:03:51 -05:00
|
|
|
call mb_send
|
|
|
|
|
mount_wait_loop:
|
|
|
|
|
call yield
|
|
|
|
|
ld hl, (fs_mailbox_num)
|
|
|
|
|
call mb_read ; Read a message
|
|
|
|
|
ld a, b ; Loop if there is no message
|
|
|
|
|
cp 0
|
|
|
|
|
jp nz, mount_wait_loop
|
|
|
|
|
pop ix
|
|
|
|
|
ld a, (0x8000)
|
|
|
|
|
ld (ix+2), a
|
|
|
|
|
ld a, (0x8001)
|
|
|
|
|
ld (ix+3), a
|
2023-09-17 11:02:33 -05:00
|
|
|
ld a, (mount_count)
|
|
|
|
|
inc a
|
|
|
|
|
ld (mount_count), a
|
|
|
|
|
jp operation_done
|
2023-09-03 10:03:51 -05:00
|
|
|
|
|
|
|
|
; String pointer 1 in IX, 2 in IY
|
|
|
|
|
; Return in A
|
|
|
|
|
vfsstrcmp:
|
|
|
|
|
vfsstrcmp_loop:
|
|
|
|
|
ld a, (iy)
|
|
|
|
|
ld b, a
|
|
|
|
|
ld a, (ix)
|
|
|
|
|
cp b
|
|
|
|
|
cp 0
|
|
|
|
|
ret z
|
|
|
|
|
jp nz, vfsstrcmp_loopend
|
|
|
|
|
inc ix
|
|
|
|
|
inc iy
|
|
|
|
|
jp vfsstrcmp_loop
|
|
|
|
|
vfsstrcmp_loopend:
|
|
|
|
|
ld a, (iy)
|
|
|
|
|
ld b, a
|
|
|
|
|
ld a, (ix)
|
|
|
|
|
sub b
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
vfs_mailbox_num: .ds.b 2
|
|
|
|
|
fs_mailbox_num: .ds.b 2
|
|
|
|
|
|
|
|
|
|
send_page_addr: .ds.b 3
|
|
|
|
|
|
|
|
|
|
fs_count: .ds.b 1
|
|
|
|
|
mount_count: .ds.b 1
|
|
|
|
|
|
|
|
|
|
.equ data_fs_offset, 0x0
|
|
|
|
|
.equ data_mount_offset, 0x200
|
|
|
|
|
.equ fs_name_offset, 0x0
|
|
|
|
|
.equ fs_pid_offset, 0xE
|
|
|
|
|
.equ mount_path_offset, 0x0
|
|
|
|
|
.equ mount_fs_pid_offset, 0xFD
|
|
|
|
|
.equ mount_fs_id_offset, 0xFF
|
