2012-03-31 20:53:14 +00:00
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace BizHawk.Emulation.Consoles.Atari._2600
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{
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2012-04-29 21:01:06 +00:00
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/*
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3E (Boulderdash
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-----
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This works similar to 3F (Tigervision) above, except RAM has been added. The range of
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addresses has been restricted, too. Only 3E and 3F can be written to now.
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1000-17FF - this bank is selectable
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1800-1FFF - this bank is the last 2K of the ROM
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To select a particular 2K ROM bank, its number is poked into address 3F. Because there's
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8 bits, there's enough for 256 2K banks, or a maximum of 512K of ROM.
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Writing to 3E, however, is what's new. Writing here selects a 1K RAM bank into
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1000-17FF. The example (Boulderdash) uses 16K of RAM, however there's theoretically
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enough space for 256K of RAM. When RAM is selected, 1000-13FF is the read port while
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1400-17FF is the write port.
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*/
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2012-03-31 20:53:14 +00:00
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class m3E : MapperBase
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{
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}
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}
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