emailler/docs/drivers_vic20-rr-net_s.html

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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 : drivers/vic20-rr-net.s</h1><pre> RR-Net driver, as seen on a VIC-20 (i.e. using a MasC=uerade adapter)
</pre><h2 id="functions">functions</h2><table><tr><th>function</th><th>description</th></tr><tr><td id="cs_init">cs_init</td><td><pre>initialise Retro Replay so we can access the network adapter
inputs: none
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="cs_packet_data">cs_packet_data</td><td>address of 'packet data' port on RR-Net
</td><td>$9804</td></tr><tr><td id="cs_packet_page">cs_packet_page</td><td>address of 'packet page' port on RR-Net
</td><td>$9802 </td></tr><tr><td id="cs_rxtx_data">cs_rxtx_data</td><td>address of 'recieve/transmit data' port on RR-Net
</td><td>$9808 </td></tr><tr><td id="cs_tx_cmd">cs_tx_cmd</td><td>address of 'transmit command' port on RR-Net
</td><td>$980c</td></tr><tr><td id="cs_tx_len">cs_tx_len</td><td>address of 'transmission length' port on RR-Net
</td><td>$980e</td></tr><tr><td id="eth_driver_io_base">eth_driver_io_base</td><td></td><td></td></tr><tr><td id="eth_driver_name">eth_driver_name</td><td></td><td>"VIC20 RR-NET"
</td></tr></table><h2>implementation</h2><pre id="code">; RR-Net driver, as seen on a VIC-20 (i.e. using a MasC=uerade adapter)
.export cs_init
.export cs_packet_page
.export cs_packet_data
.export cs_rxtx_data
.export cs_tx_cmd
.export cs_tx_len
.export eth_driver_name
.export eth_driver_io_base
rr_ctl = $9801 ;address of 'control' port on Retro-Replay
cs_packet_page = $9802 ;address of 'packet page' port on RR-Net
cs_packet_data = $9804;address of 'packet data' port on RR-Net
cs_rxtx_data = $9808 ;address of 'recieve/transmit data' port on RR-Net
cs_tx_cmd = $980c;address of 'transmit command' port on RR-Net
cs_tx_len = $980e;address of 'transmission length' port on RR-Net
.code
;initialise Retro Replay so we can access the network adapter
;inputs: none
;outputs: none
cs_init:
lda rr_ctl
ora #1
sta rr_ctl
rts
.rodata
eth_driver_name:
.asciiz "VIC20 RR-NET"
eth_driver_io_base:
.word rr_ctl-1
;-- LICENSE FOR vic20-rr-net.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>