mirror of
https://github.com/bobbimanners/emailler.git
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git-svn-id: http://svn.code.sf.net/p/netboot65/code@161 93682198-c243-4bdb-bd91-e943c89aac3b
This commit is contained in:
jonnosan
parent
06d2e50a7e
commit
76ae659e45
@ -1,386 +0,0 @@
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;NB65 API example in DASM format (http://www.atari2600.org/DASM/)
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processor 6502
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include "../inc/nb65_constants.i"
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;useful macros
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mac ldax
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lda [{1}]
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ldx [{1}]+1
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endm
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mac ldaxi
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lda #<[{1}]
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ldx #>[{1}]
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endm
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mac stax
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sta [{1}]
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stx [{1}]+1
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endm
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mac cout
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lda [{1}]
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jsr print_a
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endm
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mac print_cr
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cout #13
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jsr print_a
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endm
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mac nb65call
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ldy [{1}]
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jsr NB65_DISPATCH_VECTOR
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endm
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mac print
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ldaxi [{1}]
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ldy #NB65_PRINT_ASCIIZ
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jsr NB65_DISPATCH_VECTOR
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endm
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;some routines & zero page variables
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print_a equ $ffd2
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temp_ptr equ $FB ; scratch space in page zero
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;start of code
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;NO BASIC stub! needs to be direct booted via TFTP
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org $1000
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ldaxi #NB65_CART_SIGNATURE ;where signature should be in cartridge (if cart is banked in)
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jsr look_for_signature
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bcc found_nb65_signature
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ldaxi #NB65_RAM_STUB_SIGNATURE ;where signature should be in a RAM stub
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jsr look_for_signature
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bcs nb65_signature_not_found
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jsr NB65_RAM_STUB_ACTIVATE ;we need to turn on NB65 cartridge
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jmp found_nb65_signature
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nb65_signature_not_found
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ldaxi #nb65_api_not_found_message
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jsr print_ax
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rts
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found_nb65_signature
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lda NB65_API_VERSION
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cmp #02
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bpl .version_ok
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print incorrect_version
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jmp reset_after_keypress
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.version_ok
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print #initializing
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nb65call #NB65_INITIALIZE
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bcc .init_ok
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print_cr
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print #failed
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print_cr
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jsr print_errorcode
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jmp reset_after_keypress
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.init_ok
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;if we got here, we have found the NB65 API and initialised the IP stack
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;print out the current configuration
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nb65call #NB65_PRINT_IP_CONFIG
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;prompt for a hostname, then resolve to an IP address
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.get_hostname
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print #remote_host
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nb65call #NB65_INPUT_HOSTNAME
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bcc .host_entered
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;if no host entered, then bail.
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rts
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.host_entered
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stax nb65_param_buffer
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print_cr
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print #resolving
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ldax nb65_param_buffer
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nb65call #NB65_PRINT_ASCIIZ
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print_cr
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ldaxi #nb65_param_buffer
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nb65call #NB65_DNS_RESOLVE
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bcc .resolved_ok
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print #failed
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print_cr
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jsr print_errorcode
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jmp .get_hostname
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.resolved_ok
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.get_port
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print #remote_port
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nb65call #NB65_INPUT_PORT_NUMBER
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bcc .port_entered
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;if no port entered, then assume port 23
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ldaxi #23
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.port_entered
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stax nb65_param_buffer+NB65_TCP_PORT
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print_cr
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print #char_mode_prompt
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.char_mode_input
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jsr $ffe4
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cmp #"A"
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beq .ascii_mode
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cmp #"a"
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beq .ascii_mode
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cmp #"P"
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beq .petscii_mode
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cmp #"p"
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beq .petscii_mode
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jmp .char_mode_input
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.ascii_mode
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lda #14
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jsr print_a ;switch to lower case
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lda #0
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jmp .character_mode_set
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.petscii_mode
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lda #142
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jsr print_a ;switch to upper case
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lda #1
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.character_mode_set
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sta character_mode
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lda #147 ; 'CLR/HOME'
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jsr print_a
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ldaxi #tcp_callback
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stax nb65_param_buffer+NB65_TCP_CALLBACK
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print #connecting
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lda character_mode
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beq .a_mode
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print #petscii
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jmp .c_mode
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.a_mode
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print #ascii
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.c_mode
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print #mode
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ldaxi #nb65_param_buffer
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nb65call #NB65_TCP_CONNECT
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bcc .connect_ok
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print_cr
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print #failed
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jsr print_errorcode
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jmp .get_hostname
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.connect_ok
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print #ok
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print_cr
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lda #0
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sta connection_closed
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.main_polling_loop
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jsr NB65_PERIODIC_PROCESSING_VECTOR
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lda connection_closed
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beq .not_disconnected
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print #disconnected
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jmp .get_hostname
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.not_disconnected
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;is there anything in the input buffer?
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lda $c6 ;NDX - chars in keyboard buffer
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beq .main_polling_loop
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lda #0
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sta nb65_param_buffer+NB65_TCP_PAYLOAD_LENGTH
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sta nb65_param_buffer+NB65_TCP_PAYLOAD_LENGTH+1
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.get_next_char
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jsr $ffe4 ;getkey - 0 means no input
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tax
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beq .no_more_input
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cmp #$03 ;RUN/STOP
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bne .not_runstop
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lda #0
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sta $cb ;overwrite "current key pressed" else it's seen by the tcp stack and the close aborts
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print #closing_connection
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nb65call #NB65_TCP_CLOSE_CONNECTION
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bcs .error_on_disconnect
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print #disconnected
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jmp .get_hostname
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.error_on_disconnect
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jsr print_errorcode
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print_cr
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jmp .get_hostname
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.not_runstop
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lda character_mode
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bne .no_conversion_required
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lda petscii_to_ascii_table,x
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tax
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.no_conversion_required
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txa
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ldy nb65_param_buffer+NB65_TCP_PAYLOAD_LENGTH
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sta output_buffer,y
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inc nb65_param_buffer+NB65_TCP_PAYLOAD_LENGTH
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jmp .get_next_char
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.no_more_input
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ldaxi #output_buffer
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stax nb65_param_buffer+NB65_TCP_PAYLOAD_POINTER
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ldaxi #nb65_param_buffer
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nb65call #NB65_SEND_TCP_PACKET
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bcs .error_on_send
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jmp .main_polling_loop
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.error_on_send
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print #transmission_error
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jsr print_errorcode
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jmp .get_hostname
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;tcp callback - will be executed whenever data arrives on the TCP connection
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tcp_callback
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ldaxi #nb65_param_buffer
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nb65call #NB65_GET_INPUT_PACKET_INFO
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lda nb65_param_buffer+NB65_PAYLOAD_LENGTH+1
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cmp #$ff
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bne .not_eof
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lda #1
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sta connection_closed
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rts
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.not_eof
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ldax nb65_param_buffer+NB65_PAYLOAD_POINTER
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stax temp_ptr
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lda nb65_param_buffer+NB65_PAYLOAD_LENGTH ;assumes length of inbound data is < 255
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sta buffer_length
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dec buffer_length
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ldy #0
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.next_byte
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; tya
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; pha
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; lda (temp_ptr),y
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; nb65call #NB65_PRINT_HEX
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; pla
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; tay
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lda (temp_ptr),y
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tax
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lda character_mode
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bne .no_conversion_req
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lda ascii_to_petscii_table,x
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tax
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.no_conversion_req
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tya
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pha
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txa
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jsr print_a
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pla
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tay
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iny
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dec buffer_length
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bpl .next_byte
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rts
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;look for NB65 signature at location pointed at by AX
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look_for_signature subroutine
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stax temp_ptr
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ldy #3
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.check_one_byte
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lda (temp_ptr),y
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cmp nb65_signature,y
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bne .bad_match
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dey
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bpl .check_one_byte
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clc
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rts
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.bad_match
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sec
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rts
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print_ax subroutine
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stax temp_ptr
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ldy #0
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.next_char
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lda (temp_ptr),y
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beq .done
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jsr print_a
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iny
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jmp .next_char
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.done
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rts
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get_key
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jsr $ffe4
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cmp #0
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beq get_key
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rts
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reset_after_keypress
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print #press_a_key_to_continue
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jsr get_key
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jmp $fce2 ;do a cold start
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print_errorcode
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print #error_code
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nb65call #NB65_GET_LAST_ERROR
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nb65call #NB65_PRINT_HEX
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print_cr
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rts
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;constants
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nb65_api_not_found_message dc.b "ERROR - NB65 API NOT FOUND.",13,0
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incorrect_version dc.b "ERROR - NB65 API MUST BE AT LEAST VERSION 2.",13,0
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nb65_signature dc.b $4E,$42,$36,$35 ; "NB65" - API signature
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initializing dc.b "INITIALIZING ",13,0
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error_code dc.b "ERROR CODE: $",0
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resolving dc.b "RESOLVING ",0
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closing_connection dc.b "CLOSING CONNECTION",13,0
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connecting dc.b "CONNECTING IN ",0
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ascii dc.b "ASCII",0
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petscii dc.b "PETSCII",0
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mode dc.b " MODE",13,0
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disconnected dc.b 13,"CONNECTION CLOSED",13,0
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remote_host dc.b "REMOTE HOST - BLANK TO QUIT",13,": ",0
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remote_port dc.b "REMOTE PORT - BLANK FOR TELNET DEFAULT",13,": ",0
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char_mode_prompt dc.b "CHARACTER MODE - A=ASCII, P=PETSCII",13,0
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press_a_key_to_continue dc.b "PRESS A KEY TO CONTINUE",13,0
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failed dc.b "FAILED ", 0
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ok dc.b "OK ", 0
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transmission_error dc.b "ERROR WHILE SENDING ",0
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ascii_to_petscii_table
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dc.b $00,$01,$02,$03,$04,$05,$06,$07,$14,$09,$0d,$11,$93,$0a,$0e,$0f
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dc.b $10,$0b,$12,$13,$08,$15,$16,$17,$18,$19,$1a,$1b,$1c,$1d,$1e,$1f
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dc.b $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2a,$2b,$2c,$2d,$2e,$2f
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dc.b $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3a,$3b,$3c,$3d,$3e,$3f
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dc.b $40,$c1,$c2,$c3,$c4,$c5,$c6,$c7,$c8,$c9,$ca,$cb,$cc,$cd,$ce,$cf
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dc.b $d0,$d1,$d2,$d3,$d4,$d5,$d6,$d7,$d8,$d9,$da,$5b,$5c,$5d,$5e,$5f
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dc.b $c0,$41,$42,$43,$44,$45,$46,$47,$48,$49,$4a,$4b,$4c,$4d,$4e,$4f
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dc.b $50,$51,$52,$53,$54,$55,$56,$57,$58,$59,$5a,$db,$dc,$dd,$de,$df
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dc.b $80,$81,$82,$83,$84,$85,$86,$87,$88,$89,$8a,$8b,$8c,$8d,$8e,$8f
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dc.b $90,$91,$92,$0c,$94,$95,$96,$97,$98,$99,$9a,$9b,$9c,$9d,$9e,$9f
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dc.b $a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7,$a8,$a9,$aa,$ab,$ac,$ad,$ae,$af
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dc.b $b0,$b1,$b2,$b3,$b4,$b5,$b6,$b7,$b8,$b9,$ba,$bb,$bc,$bd,$be,$bf
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dc.b $60,$61,$62,$63,$64,$65,$66,$67,$68,$69,$6a,$6b,$6c,$6d,$6e,$6f
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dc.b $70,$71,$72,$73,$74,$75,$76,$77,$78,$79,$7a,$7b,$7c,$7d,$7e,$7f
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dc.b $e0,$e1,$e2,$e3,$e4,$e5,$e6,$e7,$e8,$e9,$ea,$eb,$ec,$ed,$ee,$ef
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dc.b $f0,$f1,$f2,$f3,$f4,$f5,$f6,$f7,$f8,$f9,$fa,$fb,$fc,$fd,$fe,$ff
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petscii_to_ascii_table
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dc.b $00,$01,$02,$03,$04,$05,$06,$07,$14,$09,$0d,$11,$93,$0a,$0e,$0f
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dc.b $10,$0b,$12,$13,$08,$15,$16,$17,$18,$19,$1a,$1b,$1c,$1d,$1e,$1f
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dc.b $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2a,$2b,$2c,$2d,$2e,$2f
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dc.b $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3a,$3b,$3c,$3d,$3e,$3f
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dc.b $40,$61,$62,$63,$64,$65,$66,$67,$68,$69,$6a,$6b,$6c,$6d,$6e,$6f
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dc.b $70,$71,$72,$73,$74,$75,$76,$77,$78,$79,$7a,$5b,$5c,$5d,$5e,$5f
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dc.b $c0,$c1,$c2,$c3,$c4,$c5,$c6,$c7,$c8,$c9,$ca,$cb,$cc,$cd,$ce,$cf
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dc.b $d0,$d1,$d2,$d3,$d4,$d5,$d6,$d7,$d8,$d9,$da,$db,$dc,$dd,$de,$df
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dc.b $80,$81,$82,$83,$84,$85,$86,$87,$88,$89,$8a,$8b,$8c,$8d,$8e,$8f
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dc.b $90,$91,$92,$0c,$94,$95,$96,$97,$98,$99,$9a,$9b,$9c,$9d,$9e,$9f
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dc.b $a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7,$a8,$a9,$aa,$ab,$ac,$ad,$ae,$af
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dc.b $b0,$b1,$b2,$b3,$b4,$b5,$b6,$b7,$b8,$b9,$ba,$bb,$bc,$bd,$be,$bf
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dc.b $60,$41,$42,$43,$44,$45,$46,$47,$48,$49,$4a,$4b,$4c,$4d,$4e,$4f
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dc.b $50,$51,$52,$53,$54,$55,$56,$57,$58,$59,$5a,$7b,$7c,$7d,$7e,$7f
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dc.b $a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7,$a8,$a9,$aa,$ab,$ac,$ad,$ae,$af
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dc.b $b0,$b1,$b2,$b3,$b4,$b5,$b6,$b7,$b8,$b9,$ba,$bb,$bc,$bd,$be,$bf
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;variables
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connection_closed ds.b 1
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character_mode ds.b 1
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buffer_offset: ds.b 1
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nb65_param_buffer DS.B $20
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buffer_length: ds.b 2
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output_buffer: DS.B $100
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208
client/examples/httpd.asm
Normal file
208
client/examples/httpd.asm
Normal file
@ -0,0 +1,208 @@
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;NB65 API example in DASM format (http://www.atari2600.org/DASM/)
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processor 6502
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include "../inc/nb65_constants.i"
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;useful macros
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mac ldax
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lda [{1}]
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ldx [{1}]+1
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endm
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mac ldaxi
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lda #<[{1}]
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ldx #>[{1}]
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endm
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mac stax
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sta [{1}]
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stx [{1}]+1
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endm
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mac cout
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lda [{1}]
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jsr print_a
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endm
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mac print_cr
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cout #13
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jsr print_a
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endm
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mac nb65call
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ldy [{1}]
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jsr NB65_DISPATCH_VECTOR
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endm
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mac print
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ldaxi [{1}]
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ldy #NB65_PRINT_ASCIIZ
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jsr NB65_DISPATCH_VECTOR
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endm
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||||
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;some routines & zero page variables
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print_a equ $ffd2
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temp_ptr equ $FB ; scratch space in page zero
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||||
|
||||
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||||
;start of code
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||||
;NO BASIC stub! needs to be direct booted via TFTP
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||||
org $1000
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||||
|
||||
ldaxi #NB65_CART_SIGNATURE ;where signature should be in cartridge (if cart is banked in)
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jsr look_for_signature
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bcc found_nb65_signature
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||||
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ldaxi #NB65_RAM_STUB_SIGNATURE ;where signature should be in a RAM stub
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||||
jsr look_for_signature
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bcs nb65_signature_not_found
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jsr NB65_RAM_STUB_ACTIVATE ;we need to turn on NB65 cartridge
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jmp found_nb65_signature
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nb65_signature_not_found
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ldaxi #nb65_api_not_found_message
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||||
jsr print_ax
|
||||
rts
|
||||
|
||||
found_nb65_signature
|
||||
|
||||
lda NB65_API_VERSION
|
||||
cmp #02
|
||||
bpl .version_ok
|
||||
print incorrect_version
|
||||
jmp reset_after_keypress
|
||||
.version_ok
|
||||
print #initializing
|
||||
nb65call #NB65_INITIALIZE
|
||||
bcc .init_ok
|
||||
print_cr
|
||||
print #failed
|
||||
print_cr
|
||||
jsr print_errorcode
|
||||
jmp reset_after_keypress
|
||||
.init_ok
|
||||
|
||||
;if we got here, we have found the NB65 API and initialised the IP stack
|
||||
;print out the current configuration
|
||||
nb65call #NB65_PRINT_IP_CONFIG
|
||||
|
||||
listen_on_port_80
|
||||
print #waiting
|
||||
ldaxi #80 ;port number
|
||||
stax nb65_param_buffer+NB65_TCP_PORT
|
||||
stx nb65_param_buffer+NB65_TCP_REMOTE_IP
|
||||
stx nb65_param_buffer+NB65_TCP_REMOTE_IP+1
|
||||
stx nb65_param_buffer+NB65_TCP_REMOTE_IP+2
|
||||
stx nb65_param_buffer+NB65_TCP_REMOTE_IP+3
|
||||
ldaxi #http_callback
|
||||
stax nb65_param_buffer+NB65_TCP_CALLBACK
|
||||
ldaxi #nb65_param_buffer
|
||||
|
||||
nb65call #NB65_TCP_CONNECT ;wait for inbound connect
|
||||
bcc .connected_ok
|
||||
print #error_while_waiting
|
||||
jsr print_errorcode
|
||||
jmp reset_after_keypress
|
||||
.connected_ok
|
||||
print #ok
|
||||
lda #0
|
||||
sta connection_closed
|
||||
|
||||
.main_polling_loop
|
||||
jsr NB65_PERIODIC_PROCESSING_VECTOR
|
||||
lda connection_closed
|
||||
beq .main_polling_loop
|
||||
jmp listen_on_port_80
|
||||
|
||||
|
||||
;http callback - will be executed whenever data arrives on the TCP connection
|
||||
http_callback
|
||||
ldaxi #nb65_param_buffer
|
||||
nb65call #NB65_GET_INPUT_PACKET_INFO
|
||||
|
||||
lda nb65_param_buffer+NB65_PAYLOAD_LENGTH+1
|
||||
cmp #$ff
|
||||
bne .not_eof
|
||||
lda #1
|
||||
sta connection_closed
|
||||
rts
|
||||
.not_eof
|
||||
|
||||
ldax nb65_param_buffer+NB65_PAYLOAD_POINTER
|
||||
stax temp_ptr
|
||||
lda nb65_param_buffer+NB65_PAYLOAD_LENGTH
|
||||
sta buffer_length
|
||||
rts
|
||||
|
||||
;look for NB65 signature at location pointed at by AX
|
||||
look_for_signature subroutine
|
||||
stax temp_ptr
|
||||
ldy #3
|
||||
.check_one_byte
|
||||
lda (temp_ptr),y
|
||||
cmp nb65_signature,y
|
||||
bne .bad_match
|
||||
dey
|
||||
bpl .check_one_byte
|
||||
clc
|
||||
rts
|
||||
.bad_match
|
||||
sec
|
||||
rts
|
||||
|
||||
print_ax subroutine
|
||||
stax temp_ptr
|
||||
ldy #0
|
||||
.next_char
|
||||
lda (temp_ptr),y
|
||||
beq .done
|
||||
jsr print_a
|
||||
iny
|
||||
jmp .next_char
|
||||
.done
|
||||
rts
|
||||
|
||||
get_key
|
||||
jsr $ffe4
|
||||
cmp #0
|
||||
beq get_key
|
||||
rts
|
||||
|
||||
reset_after_keypress
|
||||
print #press_a_key_to_continue
|
||||
jsr get_key
|
||||
jmp $fce2 ;do a cold start
|
||||
|
||||
|
||||
print_errorcode
|
||||
print #error_code
|
||||
nb65call #NB65_GET_LAST_ERROR
|
||||
nb65call #NB65_PRINT_HEX
|
||||
print_cr
|
||||
rts
|
||||
|
||||
|
||||
|
||||
;constants
|
||||
nb65_api_not_found_message dc.b "ERROR - NB65 API NOT FOUND.",13,0
|
||||
incorrect_version dc.b "ERROR - NB65 API MUST BE AT LEAST VERSION 2.",13,0
|
||||
|
||||
nb65_signature dc.b $4E,$42,$36,$35 ; "NB65" - API signature
|
||||
initializing dc.b "INITIALIZING ",13,0
|
||||
error_code dc.b "ERROR CODE: $",0
|
||||
error_while_waiting dc.b "ERROR WHILE "
|
||||
waiting dc.b "WAITING FOR CLIENT CONNECTION",13,0
|
||||
press_a_key_to_continue dc.b "PRESS ANY KEY TO CONTINUE",0
|
||||
mode dc.b " MODE",13,0
|
||||
disconnected dc.b 13,"CONNECTION CLOSED",13,0
|
||||
failed dc.b "FAILED ", 0
|
||||
ok dc.b "OK ", 0
|
||||
transmission_error dc.b "ERROR WHILE SENDING ",0
|
||||
;variables
|
||||
connection_closed ds.b 1
|
||||
nb65_param_buffer DS.B $20
|
||||
buffer_length: ds.b 2
|
||||
buffer_pointer: ds.b 2
|
||||
scratch_buffer: DS.B $1000
|
||||
@ -33,6 +33,7 @@
|
||||
.import cls
|
||||
.import get_filtered_input
|
||||
.import filter_dns
|
||||
.import filter_text
|
||||
|
||||
.segment "IP65ZP" : zeropage
|
||||
|
||||
@ -77,9 +78,11 @@ RESOURCE_HOSTNAME_MAX_LENGTH=64
|
||||
current_resource:
|
||||
resource_hostname: .res RESOURCE_HOSTNAME_MAX_LENGTH
|
||||
resource_port: .res 2
|
||||
resource_selector: .res 160
|
||||
resource_selector: .res 128
|
||||
resource_selector_length: .res 1
|
||||
displayed_resource_type: .res 1
|
||||
query_string: .res 32
|
||||
query_string_length: .res 1
|
||||
|
||||
RESOURCE_HISTORY_ENTRIES=8
|
||||
resource_history:
|
||||
@ -144,8 +147,11 @@ display_resource_in_buffer:
|
||||
|
||||
@next_line:
|
||||
jsr get_next_byte
|
||||
cmp #0
|
||||
beq @last_line
|
||||
cmp #'.'
|
||||
bne @not_last_line
|
||||
@last_line:
|
||||
lda #1
|
||||
sta this_is_last_page
|
||||
jmp @done
|
||||
@ -156,6 +162,8 @@ display_resource_in_buffer:
|
||||
beq @standard_resource
|
||||
cmp #'1'
|
||||
beq @standard_resource
|
||||
cmp #'7'
|
||||
beq @standard_resource
|
||||
|
||||
;if we got here, we know not what it is
|
||||
jmp @skip_to_end_of_line
|
||||
@ -316,6 +324,7 @@ select_resource_from_current_directory:
|
||||
|
||||
lda (buffer_ptr),y
|
||||
sta displayed_resource_type
|
||||
|
||||
@skip_to_next_tab:
|
||||
iny
|
||||
beq @done_skipping_over_tab
|
||||
@ -380,6 +389,32 @@ select_resource_from_current_directory:
|
||||
:
|
||||
jmp @parse_port
|
||||
@end_of_port:
|
||||
|
||||
lda displayed_resource_type
|
||||
|
||||
cmp #'7' ;is it a 'search' resource?
|
||||
bne @done
|
||||
|
||||
ldax #query
|
||||
jsr print
|
||||
@get_query_string:
|
||||
ldy #32 ;max chars
|
||||
ldax #filter_text
|
||||
jsr get_filtered_input
|
||||
bcs @get_query_string
|
||||
stax buffer_ptr
|
||||
jsr print_cr
|
||||
ldy #0
|
||||
sty query_string_length
|
||||
lda #09
|
||||
@copy_one_char:
|
||||
sta query_string,y
|
||||
inc query_string_length
|
||||
lda (buffer_ptr),y
|
||||
beq @done_query_string
|
||||
iny
|
||||
jmp @copy_one_char
|
||||
@done_query_string:
|
||||
@done:
|
||||
|
||||
add_resource_to_history_and_display:
|
||||
@ -461,8 +496,9 @@ load_resource_into_buffer:
|
||||
bcs :+
|
||||
jsr dns_resolve
|
||||
:
|
||||
bcs @error
|
||||
|
||||
bcc @no_error
|
||||
jmp @error
|
||||
@no_error:
|
||||
ldx #3 ; save IP address just retrieved
|
||||
: lda dns_ip,x
|
||||
sta tcp_connect_ip,x
|
||||
@ -493,6 +529,17 @@ load_resource_into_buffer:
|
||||
ldax #resource_selector
|
||||
jsr tcp_send
|
||||
|
||||
|
||||
;send the tab and query string (if supplied)
|
||||
lda displayed_resource_type
|
||||
cmp #'7' ;is it a 'search' resource?
|
||||
bne @send_cr_lf
|
||||
ldax query_string_length
|
||||
sta tcp_send_data_len
|
||||
ldax #query_string
|
||||
jsr tcp_send
|
||||
|
||||
@send_cr_lf:
|
||||
;send the CR/LF after the connector
|
||||
ldax #2
|
||||
sta tcp_send_data_len
|
||||
@ -552,10 +599,6 @@ gopher_download_callback:
|
||||
lda #'*'
|
||||
jsr print_a
|
||||
|
||||
; lda tcp_inbound_data_length+1
|
||||
; jsr print_hex
|
||||
; lda tcp_inbound_data_length
|
||||
; jsr print_hex
|
||||
|
||||
rts
|
||||
|
||||
@ -647,6 +690,9 @@ server:
|
||||
.byte "SERVER :",0
|
||||
selector:
|
||||
.byte "SELECTOR :",0
|
||||
query:
|
||||
.byte "QUERY :",0
|
||||
|
||||
any_key_to_continue:
|
||||
.byte "PRESS ANY KEY TO CONTINUE",0
|
||||
|
||||
|
||||
@ -95,21 +95,20 @@ telnet_main_entry:
|
||||
ldax #mode
|
||||
jsr print
|
||||
|
||||
; tcp_connect_ip: destination ip address (4 bytes)
|
||||
; AX: destination port (2 bytes)
|
||||
; tcp_callback: vector to call when data arrives on this connection
|
||||
|
||||
telnet_connect:
|
||||
ldax #telnet_callback
|
||||
stax tcp_callback
|
||||
stax nb65_param_buffer+NB65_TCP_CALLBACK
|
||||
ldx #3
|
||||
@copy_dest_ip:
|
||||
lda telnet_ip,x
|
||||
sta tcp_connect_ip,x
|
||||
sta nb65_param_buffer+NB65_TCP_REMOTE_IP,x
|
||||
dex
|
||||
bpl @copy_dest_ip
|
||||
ldax telnet_port
|
||||
jsr tcp_connect
|
||||
stax nb65_param_buffer+NB65_TCP_PORT
|
||||
ldax #nb65_param_buffer
|
||||
nb65call #NB65_TCP_CONNECT
|
||||
|
||||
bcc @connect_ok
|
||||
jsr print_cr
|
||||
print_failed
|
||||
|
||||
@ -434,6 +434,7 @@ ip_configured:
|
||||
|
||||
.segment "TCP_VARS"
|
||||
port_number: .res 2
|
||||
nonzero_octets: .res 1
|
||||
.code
|
||||
|
||||
cpy #NB65_TCP_CONNECT
|
||||
@ -441,9 +442,15 @@ ip_configured:
|
||||
.import tcp_connect
|
||||
.import tcp_callback
|
||||
.import tcp_connect_ip
|
||||
.import tcp_listen
|
||||
ldy #3
|
||||
lda #0
|
||||
sta nonzero_octets
|
||||
@copy_dest_ip:
|
||||
lda (nb65_params),y
|
||||
beq @octet_was_zero
|
||||
inc nonzero_octets
|
||||
@octet_was_zero:
|
||||
sta tcp_connect_ip,y
|
||||
dey
|
||||
bpl @copy_dest_ip
|
||||
@ -460,6 +467,11 @@ ip_configured:
|
||||
tax
|
||||
dey
|
||||
lda (nb65_params),y
|
||||
ldy nonzero_octets
|
||||
bne @outbound_tcp_connection
|
||||
jmp tcp_listen
|
||||
|
||||
@outbound_tcp_connection:
|
||||
jmp tcp_connect
|
||||
|
||||
:
|
||||
|
||||
@ -24,6 +24,7 @@ MAX_TCP_PACKETS_SENT=8 ;timeout after sending 8 messages will be about 7 sec
|
||||
.export tcp_send_data_len
|
||||
.export tcp_send
|
||||
.export tcp_close
|
||||
.export tcp_listen
|
||||
|
||||
.export tcp_inbound_data_ptr
|
||||
.export tcp_inbound_data_length
|
||||
@ -68,9 +69,6 @@ MAX_TCP_PACKETS_SENT=8 ;timeout after sending 8 messages will be about 7 sec
|
||||
|
||||
.import cfg_ip
|
||||
|
||||
|
||||
.segment "TCP_VARS"
|
||||
|
||||
tcp_cxn_state_closed = 0
|
||||
tcp_cxn_state_listening = 1 ;(waiting for an inbound SYN)
|
||||
tcp_cxn_state_syn_sent = 2 ;(waiting for an inbound SYN/ACK)
|
||||
@ -124,6 +122,8 @@ tcp_callback: .res 2 ;vector to routine to be called when data is received over
|
||||
tcp_flags: .res 1
|
||||
tcp_fin_sent: .res 1
|
||||
|
||||
tcp_listen_port: .res 1
|
||||
|
||||
tcp_inbound_data_ptr: .res 2 ;pointer to data just recieved over tcp connection
|
||||
tcp_inbound_data_length: .res 2 ;length of data just received over tcp connection
|
||||
;(if this is $ffff, that means "end of file", i.e. remote end has closed connection)
|
||||
@ -141,6 +141,7 @@ tcp_timer: .res 1
|
||||
tcp_loop_count: .res 1
|
||||
tcp_packet_sent_count: .res 1
|
||||
|
||||
|
||||
.code
|
||||
|
||||
; initialize tcp
|
||||
@ -155,6 +156,40 @@ tcp_init:
|
||||
jmp_to_callback:
|
||||
jmp (tcp_callback)
|
||||
|
||||
;listen for an inbound tcp connection
|
||||
;this is a 'blocking' call, i.e. it will not return until a connection has been made
|
||||
;inputs:
|
||||
; AX: destination port (2 bytes)
|
||||
; tcp_callback: vector to call when data arrives on this connection
|
||||
;outputs:
|
||||
; carry flag is set if an error occured, clear otherwise
|
||||
tcp_listen:
|
||||
stax tcp_listen_port
|
||||
lda #tcp_cxn_state_listening
|
||||
sta tcp_state
|
||||
lda #0 ;reset the "packet sent" counter
|
||||
sta tcp_packet_sent_count
|
||||
sta tcp_fin_sent
|
||||
|
||||
;set the low word of seq number to $0000, high word to something random
|
||||
sta tcp_connect_sequence_number
|
||||
sta tcp_connect_sequence_number+1
|
||||
jsr ip65_random_word
|
||||
stax tcp_connect_sequence_number+2
|
||||
@listen_loop:
|
||||
jsr ip65_process
|
||||
jsr check_for_abort_key
|
||||
bcc @no_abort
|
||||
lda #NB65_ERROR_ABORTED_BY_USER
|
||||
sta ip65_error
|
||||
rts
|
||||
@no_abort:
|
||||
lda #tcp_cxn_state_listening
|
||||
cmp tcp_state
|
||||
beq @listen_loop
|
||||
clc
|
||||
rts
|
||||
|
||||
;make outbound tcp connection
|
||||
;inputs:
|
||||
; tcp_connect_ip: destination ip address (4 bytes)
|
||||
@ -832,9 +867,60 @@ tcp_process:
|
||||
|
||||
lda tcp_inp+tcp_flags_field
|
||||
cmp #tcp_flag_SYN
|
||||
bne @not_syn
|
||||
beq @syn
|
||||
jmp @not_syn
|
||||
@syn:
|
||||
;for the moment, inbound connections not accepted. so send a RST
|
||||
|
||||
;is this the port we are listening on?
|
||||
lda tcp_inp+tcp_dest_port+1
|
||||
cmp tcp_listen_port
|
||||
bne @decline_syn_with_reset
|
||||
lda tcp_inp+tcp_dest_port
|
||||
cmp tcp_listen_port+1
|
||||
bne @decline_syn_with_reset
|
||||
|
||||
;it's the right port - are we actually waiting for a connecting?
|
||||
lda #tcp_cxn_state_listening
|
||||
cmp tcp_state
|
||||
beq @this_is_connection_we_are_waiting_for
|
||||
|
||||
rts ;if we've currently got a connection open, then ignore any new requests
|
||||
;the sender will timeout and resend the SYN, by which time we may be
|
||||
;ready to accept it again.
|
||||
|
||||
@this_is_connection_we_are_waiting_for:
|
||||
|
||||
; copy sequence number to ack (in reverse order) and remote IP
|
||||
ldx #3
|
||||
ldy #0
|
||||
: lda tcp_inp + tcp_seq,y
|
||||
sta tcp_connect_ack_number,x
|
||||
lda ip_inp+ip_src,x
|
||||
sta tcp_connect_ip,x
|
||||
iny
|
||||
dex
|
||||
bpl :-
|
||||
|
||||
;copy ports
|
||||
ldax tcp_listen_port
|
||||
stax tcp_connect_local_port
|
||||
|
||||
lda tcp_inp+tcp_src_port+1
|
||||
sta tcp_connect_remote_port
|
||||
lda tcp_inp+tcp_src_port
|
||||
sta tcp_connect_remote_port+1
|
||||
|
||||
lda #tcp_cxn_state_established
|
||||
sta tcp_state
|
||||
|
||||
ldax #tcp_connect_ack_number
|
||||
stax acc32
|
||||
ldax #$0001 ;
|
||||
jsr add_16_32 ;increment the ACK counter by 1, for the SYN we just received
|
||||
lda #tcp_flag_SYN+tcp_flag_ACK
|
||||
jmp @send_packet
|
||||
|
||||
@decline_syn_with_reset:
|
||||
;create a RST packet
|
||||
ldx #3 ; copy sequence number to ack (in reverse order)
|
||||
|
||||
@ -42,8 +42,8 @@ all: \
|
||||
test_tcp.prg: test_tcp.o $(IP65TCPLIB) $(C64PROGLIB) $(INCFILES) ../cfg/c64prg.cfg
|
||||
$(LD) -m test_tcp.map -vm -C ../cfg/c64prg.cfg -o test_tcp.prg $(AFLAGS) $< $(IP65TCPLIB) $(C64PROGLIB)
|
||||
|
||||
gopher_browser.prg: gopher_browser.o $(IP65TCPLIB) $(C64PROGLIB) $(INCFILES) ../cfg/c64prg.cfg ../inc/gopher.i
|
||||
$(LD) -m gopher_browser.map -vm -C ../cfg/c64prg.cfg -o gopher_browser.prg $(AFLAGS) $< $(IP65TCPLIB) $(C64PROGLIB)
|
||||
#gopher_browser.prg: gopher_browser.o $(IP65TCPLIB) $(C64PROGLIB) $(INCFILES) ../cfg/c64prg.cfg ../inc/gopher.i
|
||||
# $(LD) -m gopher_browser.map -vm -C ../cfg/c64prg.cfg -o gopher_browser.prg $(AFLAGS) $< $(IP65TCPLIB) $(C64PROGLIB)
|
||||
|
||||
|
||||
%.pg2: %.o $(IP65LIB) $(APPLE2PROGLIB) $(INCFILES) ../cfg/a2bin.cfg
|
||||
|
||||
Binary file not shown.
Loading…
Reference in New Issue
Block a user