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47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
/* -*- mode: JavaScript; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* Copyright 2010-2013 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 Slot3*/
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function Slot3(mmu, rom)
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{
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var auxRomFn = {
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start: function auxRom_start() {
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return 0xc8;
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},
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end: function auxRom_end() {
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return 0xcf;
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},
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read: function auxRom_read(page, off) {
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return rom.read(page, off);
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},
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write: function auxRom_write() {}
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};
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return {
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start: function slot3_start() {
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return 0xc3;
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},
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end: function slot3_end() {
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return 0xc3;
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},
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read: function slot3_read(page, off) {
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mmu.auxRom(0x3, auxRomFn);
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return rom.read(page, off);
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},
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write: function slot3_write() {
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mmu.auxRom(0x3, auxRomFn);
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}
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};
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}
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