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188 lines
5.1 KiB
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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 : ip65/debug.s</h1><pre>routines for dumping debug information
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</pre><h2 id="functions">functions</h2><table><tr><th>function</th><th>description</th></tr><tr><td id="console_strout">console_strout</td><td><pre>print a string to the console
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inputs: AX = address of (null terminated) string to print
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outputs: none
</pre></td></tr><tr><td id="dbg_dump_eth_header">dbg_dump_eth_header</td><td><pre>prints out the header of ethernet packet that is ready to be sent;
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inputs:
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eth_outp: pointer to ethernet packet
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eth_outp_len: length of ethernet packet
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outputs: none
</pre></td></tr><tr><td id="dbg_dump_ip_header">dbg_dump_ip_header</td><td><pre>prints out the header of ip packet that is ready to be sent;
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inputs:
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eth_outp: pointer to ethernet packet containing an ip packet
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eth_outp_len: length of ethernet packet
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outputs: none
</pre></td></tr><tr><td id="dbg_dump_udp_header">dbg_dump_udp_header</td><td><pre>prints out the header of udp packet that is ready to be sent;
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inputs:
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eth_outp: pointer to ethernet packet containing a udp packet
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eth_outp_len: length of ethernet packet
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outputs: none
</pre></td></tr><tr><td id="dbgout16">dbgout16</td><td><pre>print a 32 bit number as 4 hex digits
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inputs: AX = 32 bit number to print
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outputs: none
</pre></td></tr></table><h2 id="constants">constants</h2><table><tr><th>constants</th><th>description</th><th>value</th></tr><tr><td id="console_out">console_out</td><td></td><td>$ffd2
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</td></tr></table><h2>implementation</h2><pre id="code">;routines for dumping debug information
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.include "../inc/common.i"
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.include "../inc/printf.i"
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.export dbgout16
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.export dbg_dump_eth_header
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.export dbg_dump_ip_header
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.export dbg_dump_udp_header
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.export console_out
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.export console_strout
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.import eth_outp, eth_outp_len
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.import ip_outp
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.import udp_outp
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.segment "IP65ZP" : zeropage
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cptr: .res 2
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.code
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;prints out the header of ethernet packet that is ready to be sent;
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; inputs:
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; eth_outp: pointer to ethernet packet
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; eth_outp_len: length of ethernet packet
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; outputs: none
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dbg_dump_eth_header:
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pha
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txa
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pha
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tya
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pha
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printf "\rethernet header:\r"
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printf "len: %04x\r", eth_outp_len
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printf "dest: %04x:%04x:%04x\r", eth_outp, eth_outp + 2, eth_outp + 4
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printf "src: %04x:%04x:%04x\r", eth_outp + 6, eth_outp + 8, eth_outp + 10
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printf "type: %04x\r", eth_outp + 12
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pla
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tay
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pla
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tax
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pla
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rts
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;prints out the header of ip packet that is ready to be sent;
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; inputs:
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; eth_outp: pointer to ethernet packet containing an ip packet
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; eth_outp_len: length of ethernet packet
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; outputs: none
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dbg_dump_ip_header:
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pha
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txa
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pha
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tya
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pha
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printf "\rip header:\r"
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printf "ver,ihl,tos: %04x\r", ip_outp
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printf "len: %04x\r", ip_outp + 2
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printf "id: %04x\r", ip_outp + 4
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printf "frag: %04x\r", ip_outp + 6
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printf "ttl: %02x\r", ip_outp + 8
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printf "proto: %02x\r", ip_outp + 9
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printf "cksum: %04x\r", ip_outp + 10
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printf "src: %04x%04x\r", ip_outp + 12, ip_outp + 14
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printf "dest: %04x%04x\r", ip_outp + 16, ip_outp + 18
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pla
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tay
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pla
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tax
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pla
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rts
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;prints out the header of udp packet that is ready to be sent;
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; inputs:
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; eth_outp: pointer to ethernet packet containing a udp packet
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; eth_outp_len: length of ethernet packet
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; outputs: none
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dbg_dump_udp_header:
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pha
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txa
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pha
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tya
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pha
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printf "\rudp header:\r"
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printf "srcport: %04x\r", ip_outp
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printf "destport: %04x\r", ip_outp + 2
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printf "len: %04x\r", ip_outp + 4
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printf "cksum: %04x\r", ip_outp + 6
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pla
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tay
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pla
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tax
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pla
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rts
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console_out = $ffd2
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;print a string to the console
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;inputs: AX = address of (null terminated) string to print
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;outputs: none
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console_strout:
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stax cptr
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pha
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txa
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pha
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tya
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pha
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ldy #0
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: lda (cptr),y
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beq @done
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jsr console_out
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iny
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bne :-
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@done:
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pla
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tay
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pla
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tax
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pla
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rts
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;print a 32 bit number as 4 hex digits
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;inputs: AX = 32 bit number to print
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;outputs: none
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dbgout16:
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stax val16
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printf "%04x", val16
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rts
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.bss
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val16: .res 2
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;-- LICENSE FOR debug.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 Per Olofsson,
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; MagerValp@gmail.com.
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; Portions created by the Initial Developer are Copyright (C) 2009
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; Per Olofsson. All Rights Reserved.
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; -- LICENSE END --
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</pre></body></html>
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