83 lines
2.8 KiB
JavaScript
83 lines
2.8 KiB
JavaScript
/* Copyright 2010-2017 Will Scullin <scullin@scullinsteel.com>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation. No representations are made about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*/
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/*exported Parallel */
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/*globals debug: false */
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function Parallel(io, slot, cbs) {
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'use strict';
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slot = slot || 1;
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debug('Parallel card in slot', slot);
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var LOC = {
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IOREG: 0x80
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};
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var rom = [
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0x18,0xb0,0x38,0x48,0x8a,0x48,0x98,0x48,
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0x08,0x78,0x20,0x58,0xff,0xba,0x68,0x68,
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0x68,0x68,0xa8,0xca,0x9a,0x68,0x28,0xaa,
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0x90,0x38,0xbd,0xb8,0x05,0x10,0x19,0x98,
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0x29,0x7f,0x49,0x30,0xc9,0x0a,0x90,0x3b,
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0xc9,0x78,0xb0,0x29,0x49,0x3d,0xf0,0x21,
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0x98,0x29,0x9f,0x9d,0x38,0x06,0x90,0x7e,
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0xbd,0xb8,0x06,0x30,0x14,0xa5,0x24,0xdd,
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0x38,0x07,0xb0,0x0d,0xc9,0x11,0xb0,0x09,
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0x09,0xf0,0x3d,0x38,0x07,0x65,0x24,0x85,
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0x24,0x4a,0x38,0xb0,0x6d,0x18,0x6a,0x3d,
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0xb8,0x06,0x90,0x02,0x49,0x81,0x9d,0xb8,
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0x06,0xd0,0x53,0xa0,0x0a,0x7d,0x38,0x05,
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0x88,0xd0,0xfa,0x9d,0xb8,0x04,0x9d,0x38,
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0x05,0x38,0xb0,0x43,0xc5,0x24,0x90,0x3a,
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0x68,0xa8,0x68,0xaa,0x68,0x4c,0xf0,0xfd,
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0x90,0xfe,0xb0,0xfe,0x99,0x80,0xc0,0x90,
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0x37,0x49,0x07,0xa8,0x49,0x0a,0x0a,0xd0,
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0x06,0xb8,0x85,0x24,0x9d,0x38,0x07,0xbd,
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0xb8,0x06,0x4a,0x70,0x02,0xb0,0x23,0x0a,
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0x0a,0xa9,0x27,0xb0,0xcf,0xbd,0x38,0x07,
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0xfd,0xb8,0x04,0xc9,0xf8,0x90,0x03,0x69,
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0x27,0xac,0xa9,0x00,0x85,0x24,0x18,0x7e,
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0xb8,0x05,0x68,0xa8,0x68,0xaa,0x68,0x60,
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0x90,0x27,0xb0,0x00,0x10,0x11,0xa9,0x89,
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0x9d,0x38,0x06,0x9d,0xb8,0x06,0xa9,0x28,
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0x9d,0xb8,0x04,0xa9,0x02,0x85,0x36,0x98,
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0x5d,0x38,0x06,0x0a,0xf0,0x90,0x5e,0xb8,
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0x05,0x98,0x48,0x8a,0x0a,0x0a,0x0a,0x0a,
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0xa8,0xbd,0x38,0x07,0xc5,0x24,0x68,0xb0,
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0x05,0x48,0x29,0x80,0x09,0x20,0x2c,0x58,
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0xff,0xf0,0x03,0xfe,0x38,0x07,0x70,0x84
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];
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function _access(off, val) {
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switch (off & 0x8f) {
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case LOC.IOREG:
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if (cbs.putChar && val) {
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cbs.putChar(val);
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}
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break;
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default:
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debug('Parallel card unknown softswitch', off);
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}
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}
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return {
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ioSwitch: function (off, val) {
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return _access(off, val);
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},
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read: function(page, off) {
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return rom[off];
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},
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write: function() {}
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};
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}
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