mirror of
https://github.com/bobbimanners/emailler.git
synced 2024-07-15 15:29:02 +00:00
5218deb352
git-svn-id: http://svn.code.sf.net/p/netboot65/code@207 93682198-c243-4bdb-bd91-e943c89aac3b
343 lines
6.6 KiB
ArmAsm
343 lines
6.6 KiB
ArmAsm
;#############
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;
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; This will boot an Apple 2 with uthernet in slot 3 from the network
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; requires
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; 1) a DHCP server, and
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; 2) a TFTP server that responds to requests on the broadcast address (255.255.255.255) and that will serve a file called 'BOOTA2.BIN'.
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;
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; jonno@jamtronix.com - January 2009
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;
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.include "../inc/common.i"
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.include "../inc/commonprint.i"
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.include "../inc/net.i"
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.include "../inc/a2keycodes.i"
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.include "../inc/menu.i"
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.import cls
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.import get_key
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.import beep
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.importzp tftp_filename
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.import tftp_load_address
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.import tftp_ip
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.import tftp_download
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.import tftp_clear_callbacks
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.import copymem
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.importzp copy_src
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.importzp copy_dest
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.import __STARTUP_LOAD__
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.import __STARTUP_SIZE__
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.import __BSS_LOAD__
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.import __DATA_LOAD__
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.import __DATA_RUN__
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.import __DATA_SIZE__
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.import __RODATA_LOAD__
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.import __RODATA_RUN__
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.import __RODATA_SIZE__
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.import __CODE_LOAD__
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.import __CODE_RUN__
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.import __CODE_SIZE__
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.import __IP65_DEFAULTS_LOAD__
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.import __IP65_DEFAULTS_RUN__
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.import __IP65_DEFAULTS_SIZE__
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;.segment "PAGE3"
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;disable_language_card: .res 3
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;bin_file_jmp: .res 3
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disable_language_card = $101
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bin_file_jmp = $104
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; ------------------------------------------------------------------------
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.segment "EXEHDR"
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.addr __STARTUP_LOAD__ ; Start address
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.word __STARTUP_SIZE__+__CODE_SIZE__+__RODATA_SIZE__+__DATA_SIZE__+4 ; Size
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; ------------------------------------------------------------------------
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tftp_dir_buffer = $4000
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.segment "STARTUP"
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lda $c089 ;enable language : card read ROM, write RAM, BANK 1
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;copy the monitor rom on to the language card
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ldax #$f800
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stax copy_src
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stax copy_dest
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ldax #$0800
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jsr startup_copymem
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lda $c08b ;enable language : card read RAM, write RAM, BANK 1
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lda $c08b ;this soft switch needs to be read twice
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;relocate the CODE segment
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ldax #__CODE_LOAD__
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stax copy_src
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ldax #__CODE_RUN__
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stax copy_dest
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ldax #__CODE_SIZE__
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jsr startup_copymem
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;relocate the RODATA segment
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ldax #__RODATA_LOAD__
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stax copy_src
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ldax #__RODATA_RUN__
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stax copy_dest
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ldax #__RODATA_SIZE__
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jsr startup_copymem
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;@fixme: jmp @fixme
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;relocate the DATA segment
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ldax #__DATA_LOAD__
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stax copy_src
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ldax #__DATA_RUN__
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stax copy_dest
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ldax #__DATA_SIZE__
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jsr startup_copymem
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;relocate the IP65_DEFAULTS segment
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ldax #__IP65_DEFAULTS_LOAD__
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stax copy_src
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ldax #__IP65_DEFAULTS_RUN__
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stax copy_dest
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ldax #__IP65_DEFAULTS_SIZE__
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jsr startup_copymem
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jmp init
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; copy memory
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; set copy_src and copy_dest, length in A/X
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end: .res 1
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startup_copymem:
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sta end
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ldy #0
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cpx #0
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beq @tail
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: lda (copy_src),y
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sta (copy_dest),y
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iny
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bne :-
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inc copy_src+1 ;next page
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inc copy_dest+1 ;next page
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dex
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bne :-
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@tail:
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lda end
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beq @done
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: lda (copy_src),y
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sta (copy_dest),y
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iny
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cpy end
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bne :-
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@done:
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rts
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.code
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init:
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jsr cls
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ldax #startup_msg
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jsr print
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jsr print_cr
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init_ip_via_dhcp
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bcc :+
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jmp bad_boot
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:
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jsr print_ip_config
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ldx #3
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lda #$FF
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:
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; lda cfg_tftp_server,x
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sta tftp_ip,x
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dex
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bpl :-
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jsr tftp_clear_callbacks
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ldax #tftp_dir_buffer
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stax tftp_load_address
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ldax #getting_dir_listing_msg
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jsr print
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ldax #tftp_dir_filemask
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stax tftp_filename
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jsr print
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jsr print_cr
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jsr tftp_download
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bcs @dir_failed
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ldax #$0000 ;load address will be first 2 bytes of file we download (LO/HI order)
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stax tftp_load_address
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ldax #tftp_dir_buffer
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jsr select_option_from_menu
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bcc @option_selected
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jmp bad_boot
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@option_selected:
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stax tftp_filename
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ldax #downloading_msg
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jsr print
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ldax tftp_filename
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jsr download
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bcc @file_downloaded_ok
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jmp bad_boot
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@dir_failed:
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ldax #tftp_dir_listing_fail_msg
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jsr print
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jsr print_cr
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ldax #$0000 ;load address will be first 2 bytes of file we download (LO/HI order)
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stax tftp_load_address
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ldax #downloading_msg
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jsr print
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ldax #tftp_file
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jsr download
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bcc @file_downloaded_ok
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jmp bad_boot
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@file_downloaded_ok:
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;set up to jump to where we just d/led the file to
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lda #$4C ;opcode for JMP
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sta bin_file_jmp
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ldax tftp_load_address
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stax bin_file_jmp+1
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;but before we go, we need to shift the file down by 2 bytes (to skip over the file length)
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ldax tftp_load_address
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stax copy_dest
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clc
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adc #02
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bcc :+
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inx
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:
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stax copy_src
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ldy #1
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lda (copy_dest),y ;currently this is the high byte of the length
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tax
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dey
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lda (copy_dest),y ;currently this is the low byte of the length
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jsr copymem
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;now make the 'turn off language card' routine
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lda #$AD ;$AD=LDA
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sta disable_language_card
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lda #$82 ;low byte of soft switch
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sta disable_language_card+1
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lda #$c0 ;high byte of soft switch
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sta disable_language_card+2
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jmp disable_language_card
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bad_boot:
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jmp $3d0
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download:
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stax tftp_filename
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jsr print
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jsr print_cr
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jsr tftp_download
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bcc :+
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ldax #tftp_download_fail_msg
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jsr print
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sec
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rts
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:
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ldax #tftp_download_ok_msg
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jsr print
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clc
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rts
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.rodata
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downloading_msg: .asciiz "DOWNLOADING "
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getting_dir_listing_msg: .asciiz "FETCHING TFTP DIRECTORY FOR "
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tftp_dir_listing_fail_msg:
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.asciiz "DIR LISTING FAILED"
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tftp_file:
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.asciiz "BOOTA2.PG2"
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tftp_dir_filemask:
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.asciiz "$*.pg2"
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tftp_download_fail_msg:
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.asciiz "DOWNLOAD FAILED"
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tftp_download_ok_msg:
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.asciiz "DOWNLOAD OK"
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startup_msg: .byte "UTHERNET NETWORK BOOT CLIENT V"
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.include "..\nb65\nb65_version.i"
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.byte 0
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;-- LICENSE FOR utherboot.s --
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; The contents of this file are subject to the Mozilla Public License
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; Version 1.1 (the "License"); you may not use this file except in
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; compliance with the License. You may obtain a copy of the License at
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; http://www.mozilla.org/MPL/
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;
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; Software distributed under the License is distributed on an "AS IS"
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; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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; License for the specific language governing rights and limitations
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; under the License.
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;
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; The Original Code is ip65.
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;
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; The Initial Developer of the Original Code is Jonno Downes,
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; jonno@jamtronix.com.
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; Portions created by the Initial Developer are Copyright (C) 2009
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; Jonno Downes. All Rights Reserved.
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; -- LICENSE END --
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