emailler/client/inc/disk_transfer.i

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.import io_track_no
.import io_sector_no
.import io_write_sector
.import io_read_sector
.segment "APP_SCRATCH"
track: .res 1
sector: .res 1
errors: .res 1
sectors_in_track: .res 1
sector_buffer_address: .res 2
output_buffer_address: .res 2
;the io_* and tftp_* routines both use the 'output_buffer' so we lose the data in the second sector
;therefore we need to copy the data to here before we use it
sector_buffer: .res 512
.code
download_d64:
stax kipper_param_buffer+KPR_TFTP_FILENAME
jsr cls
ldax #downloading_msg
jsr print_ascii_as_native
ldax kipper_param_buffer+KPR_TFTP_FILENAME
jsr print_ascii_as_native
jsr reset_counters_to_first_sector
ldax #write_next_block
stax kipper_param_buffer+KPR_TFTP_POINTER
ldax #kipper_param_buffer
kippercall #KPR_TFTP_CALLBACK_DOWNLOAD
after_tftp_transfer:
bcc :+
jsr print_cr
print_failed
jsr print_errorcode
jsr print_cr
:
print_ok
ldax #press_a_key_to_continue
jsr print
jsr get_key
rts
upload_d64:
ldax #enter_filename
jsr print
kippercall #KPR_INPUT_HOSTNAME ;the 'hostname' filter is pretty close to being a filter for legal chars in file names as well
bcc :+
rts
:
stax kipper_param_buffer+KPR_TFTP_FILENAME
jsr cls
;switch to lower case charset
lda #23
sta $d018
ldax #uploading_msg
jsr print
ldax kipper_param_buffer+KPR_TFTP_FILENAME
jsr print
jsr reset_counters_to_first_sector
ldax #read_next_block
stax kipper_param_buffer+KPR_TFTP_POINTER
ldax #kipper_param_buffer
kippercall #KPR_TFTP_CALLBACK_UPLOAD
jmp after_tftp_transfer
copy_sector_buffer_to_output_buffer:
ldax #sector_buffer
stax copy_src
ldax output_buffer_address
stax copy_dest
ldax #$200
jmp copymem
read_next_block:
;tftp upload callback routine
;AX will point to address to fill
stax output_buffer_address
ldax #sector_buffer
stax sector_buffer_address
lda track
cmp #36
beq @past_last_track
jsr read_sector
bcc @not_last_sector
jsr copy_sector_buffer_to_output_buffer
ldax #$100
rts
@not_last_sector:
inc sector_buffer_address+1
ldax sector_buffer_address
jsr read_sector
jsr copy_sector_buffer_to_output_buffer
ldax #$200
rts
@past_last_track:
ldax #$0000
rts
save_sector:
ldax #position_cursor_for_track_display
jsr print
jsr print_current_sector
lda track
sta io_track_no
lda sector
sta io_sector_no
ldax sector_buffer_address
jsr io_write_sector
bcc :+
inc errors
:
jmp move_to_next_sector
read_sector:
ldax #position_cursor_for_track_display
jsr print
jsr print_current_sector
lda track
sta io_track_no
lda sector
sta io_sector_no
ldax sector_buffer_address
jsr io_read_sector
bcc :+
inc errors
:
jmp move_to_next_sector
write_next_block:
;tftp download callback routine
;AX will point at block to be written (prepended with 2 bytes indicating block length)
clc
adc #02 ;skip the 2 byte length at start of buffer
bcc :+
inx
:
stax copy_src
ldax #sector_buffer
stax copy_dest
stax sector_buffer_address
ldax #$200
jsr copymem
jsr save_sector
bcc @not_last_sector
rts
@not_last_sector:
inc sector_buffer_address+1
jsr save_sector
rts
@past_last_track:
rts
print_current_sector:
ldax #track_no
jsr print_ascii_as_native
lda track
jsr print_hex
ldax #sector_no
jsr print_ascii_as_native
lda sector
jsr print_hex
ldax #errors_msg
jsr print_ascii_as_native
lda errors
jsr print_hex
jsr print_cr
rts
reset_counters_to_first_sector:
ldx #1
stx track
dex
stx sector
stx errors
ldx #21
stx sectors_in_track
rts
move_to_next_sector:
inc sector
lda sector
cmp sectors_in_track
beq @move_to_next_track
rts
@move_to_next_track:
lda #0
sta sector
inc track
lda track
cmp #18
bne @not_track_18
lda #19
sta sectors_in_track
clc
rts
@not_track_18:
cmp #25
bne @not_track_25
lda #18
sta sectors_in_track
clc
rts
@not_track_25:
cmp #31
bne @not_track_31
lda #17
sta sectors_in_track
clc
rts
@not_track_31:
lda track
cmp #36 ;carry will be set if hit track 36
rts
.rodata
track_no:
.byte "TRACK $",0
sector_no:
.byte " SECTOR $",0
errors_msg:
.byte " ERRORS $",0
position_cursor_for_track_display:
.byte $13,13,13,0
position_cursor_for_error_display:
.byte $13,13,13,0
enter_filename: .asciiz "FILENAME: "
;-- LICENSE FOR disk_transfer.i --
; The contents of this file are subject to the Mozilla Public License
; Version 1.1 (the "License"); you may not use this file except in
; compliance with the License. You may obtain a copy of the License at
; http://www.mozilla.org/MPL/
;
; Software distributed under the License is distributed on an "AS IS"
; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
; License for the specific language governing rights and limitations
; under the License.
;
; The Original Code is ip65.
;
; The Initial Developer of the Original Code is Jonno Downes,
; jonno@jamtronix.com.
; Portions created by the Initial Developer are Copyright (C) 2009
; Jonno Downes. All Rights Reserved.
; -- LICENSE END --