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<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><link rel="stylesheet" type="text/css" href="ca65-doc-style.css"/></head><body><a href="ref_index.html"><h1>ip65 technical reference</h1></a><h1>File : test/test_disk_io.s</h1><h2 id="variables">variables</h2><table><tr><th>variable</th><th>description</th><th>size (bytes)</th></tr><tr><td id="output_buffer">output_buffer</td><td></td><td>520</td></tr></table><h2>implementation</h2><pre id="code">
.ifndef KIPPER_API_VERSION_NUMBER
.define EQU =
.include "../inc/kipper_constants.i"
.endif
.include "../inc/common.i"
.include "../inc/commonprint.i"
.import print_a
.import cfg_get_configuration_ptr
.import io_device_no
.import io_sector_no
.import io_track_no
.import io_read_sector
.import io_write_sector
.import io_read_file_with_callback
.import io_read_file
.import io_filename
.import io_filesize
.import io_load_address
.import io_callback
.import get_key
.import ip65_error
.import io_read_catalogue_ex
.macro cout arg
lda arg
jsr print_a
.endmacro
.bss
sector_buffer: .res 256
output_buffer: .res 520
.export output_buffer
current_byte_in_row: .res 1
current_byte_in_sector: .res 1
start_of_current_row: .res 1
directory_buffer: .res 4096
.segment "STARTUP" ;this is what gets put at the start of the file on the C64
.word basicstub ; load address
basicstub:
.word @nextline
.word 2003
.byte $9e
.byte <(((init / 1000) .mod 10) + $30)
.byte <(((init / 100 ) .mod 10) + $30)
.byte <(((init / 10 ) .mod 10) + $30)
.byte <(((init ) .mod 10) + $30)
.byte 0
@nextline:
.word 0
init:
;switch to lower case charset
lda #23
sta $d018
;test we can read catalogue the hard way
ldax #loading
jsr print
ldax #dir_fname
stax io_filename
jsr print
jsr print_cr
lda #01
sta io_device_no
ldax #readfile_callback
stax io_callback
ldax #$3000
jsr io_read_file
bcc :+
jsr print_error_code
rts
:
;test we can write sector to default desk
ldx #$00
@fill_sector_loop:
txa
sta sector_buffer,x
inx
bne @fill_sector_loop
lda #$01
sta io_track_no
lda #$01
sta io_sector_no
ldax #write_sector
jsr print
lda io_sector_no
jsr print_hex
jsr print_cr
ldax #sector_buffer
jsr io_write_sector
bcc :+
jsr print_error_code
rts
:
inc io_sector_no
ldax #write_sector
jsr print
lda io_sector_no
jsr print_hex
jsr print_cr
ldax #sector_buffer
jsr io_write_sector
bcc :+
jsr print_error_code
rts
:
inc io_sector_no
ldax #write_sector
jsr print
lda io_sector_no
jsr print_hex
jsr print_cr
ldax #sector_buffer
jsr io_write_sector
bcc :+
jsr print_error_code
rts
:
;test we can read a sector from default desk
ldax #read_sector
jsr print
lda #$01
sta io_track_no
lda #$03
sta io_sector_no
ldax #sector_buffer
jsr io_read_sector
bcc :+
jsr print_error_code
rts
:
jsr dump_sector
;test we can read the catalogue
ldax #read_catalogue
jsr print
lda #01
sta io_device_no
ldax #directory_buffer
jsr io_read_catalogue_ex
bcc @no_error_on_catalogue
jsr print_error_code
rts
@no_error_on_catalogue:
ldax #directory_buffer
jsr print_catalogue
;test we can read without callbacks to fixed buffer
ldax #loading
jsr print
ldax #fname
stax io_filename
jsr print
jsr print_cr
lda #01
sta io_device_no
ldax #readfile_callback
stax io_callback
ldax #$3000
jsr io_read_file
bcc :+
jsr print_error_code
rts
:
ldax io_filesize
jsr print_integer
ldax #bytes_to
jsr print
lda io_load_address+1
jsr print_hex
lda io_load_address
jsr print_hex
jsr print_cr
;test we can read without callbacks to address in file
ldax #loading
jsr print
ldax #fname2
stax io_filename
jsr print
jsr print_cr
lda #01
sta io_device_no
ldax #readfile_callback
stax io_callback
ldax #$0000
jsr io_read_file
bcc :+
jsr print_error_code
rts
:
ldax io_filesize
jsr print_integer
ldax #bytes_to
jsr print
lda io_load_address+1
jsr print_hex
lda io_load_address
jsr print_hex
jsr print_cr
jsr wait_for_keypress
;test we can read via callbacks
ldax #loading
jsr print
ldax #fname
stax io_filename
jsr print
jsr print_cr
lda #01
sta io_device_no
ldax #readfile_callback
stax io_callback
ldax #sector_buffer
jsr io_read_file_with_callback
bcc :+
jsr print_error_code
:
rts
@error:
jsr print_cr
lda ip65_error
jsr print_hex
rts
;print catalogue pointed at by AX
print_catalogue:
stax tmp_buffer_ptr
@print_one_filename:
jsr read_byte_from_buffer
beq @catalogue_done
@print_one_char:
jsr print_a
jsr read_byte_from_buffer
beq @end_of_filename
jmp @print_one_char
@end_of_filename:
jsr print_cr
ldax #filetype
jsr print
jsr read_byte_from_buffer
jsr print_hex
ldax #sectors
jsr print
jsr read_byte_from_buffer
pha
jsr read_byte_from_buffer
jsr print_hex
pla
jsr print_hex
jsr print_cr
jmp @print_one_filename
@catalogue_done:
rts
read_byte_from_buffer:
tmp_buffer_ptr=read_byte_from_buffer+1
lda $ffff
inc tmp_buffer_ptr
bne :+
inc tmp_buffer_ptr+1
:
pha
pla ;reload A so flags are set correctly
rts
readfile_callback:
tya
jsr print_hex
ldax #bytes
jsr print
jsr dump_sector
rts
print_error_code:
jsr print_cr
ldax #error
jsr print
lda ip65_error
jsr print_hex
jsr print_cr
rts
wait_for_keypress:
lda #0
sta $c6 ;set the keyboard buffer to be empty
ldax #press_a_key_to_continue
jsr print
jsr get_key
rts
dump_sector:
;hex dump sector
lda #0
sta current_byte_in_sector
sta start_of_current_row
@one_row:
lda #$80
cmp current_byte_in_sector
bne @dont_wait_for_key
jsr wait_for_keypress
@dont_wait_for_key:
lda current_byte_in_sector
sta start_of_current_row
jsr print_hex
lda #':'
jsr print_a
lda #' '
jsr print_a
lda #0
sta current_byte_in_row
;first the hex values
@dump_byte:
ldy current_byte_in_sector
lda sector_buffer,y
jsr print_hex
lda #' '
jsr print_a
inc current_byte_in_sector
inc current_byte_in_row
lda current_byte_in_row
cmp #08
bne @dump_byte
;now the ascii values
lda start_of_current_row
sta current_byte_in_sector
@print_byte:
ldy current_byte_in_sector
lda sector_buffer,y
cmp #32
bmi @not_printable
cmp #94
bmi @printable
@not_printable:
lda #'.'
@printable:
jsr print_a
inc current_byte_in_sector
beq @last_byte
dec current_byte_in_row
bne @print_byte
jsr print_cr
jmp @one_row
@last_byte:
jsr print_cr
jsr wait_for_keypress
rts
write_sector:
.byte "WRITING SECTOR",0
read_sector:
.byte "READING SECTOR",13,0
dir_fname: .byte "$",0
read_catalogue:
.byte "READING CATALOGUE",13,0
fname:
.byte "TEST_DISK_IO.PRG",0
fname2:
.byte "SCREEN.PRG",0
loading: .byte "LOADING ",0
.rodata
filetype:
.byte "TYPE: $",0
sectors:
.byte " SECTORS: $",0
error:
.byte "ERROR - $", 0
failed:
.byte "FAILED ", 0
ok:
.byte "OK ", 0
bytes:
.byte " BYTES.", 0
bytes_to:
.byte " BYTES TO $", 0
;-- LICENSE FOR test_disk_io.s --
; 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 --
</pre></body></html>
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