[536] | 1 | ; Project name : XTIDE Universal BIOS |
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| 2 | ; Description : Silicon Valley Computer ADP50L specifications. |
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| 3 | |
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| 4 | ; |
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| 5 | ; XTIDE Universal BIOS and Associated Tools |
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
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| 7 | ; |
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| 8 | ; This program is free software; you can redistribute it and/or modify |
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| 9 | ; it under the terms of the GNU General Public License as published by |
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| 10 | ; the Free Software Foundation; either version 2 of the License, or |
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| 11 | ; (at your option) any later version. |
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| 12 | ; |
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| 13 | ; This program is distributed in the hope that it will be useful, |
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | ; GNU General Public License for more details. |
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 18 | ; |
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| 19 | |
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| 20 | %ifndef ADP50L_INC |
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| 21 | %define ADP50L_INC |
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| 22 | |
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| 23 | ; | BIOS Segment --------- | Unknown - | ROM Chip ---------- | |
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| 24 | ; Jumper: J1 J2 J3 J4 J5 J6 J7 |
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| 25 | ; Disabled N/A N/A OFF OFF OFF OFF OFF = 2764 / 27C64 * |
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| 26 | ; C800h * OFF OFF ON ON = 27256 / 27C256 |
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| 27 | ; CA00h ON OFF ON |
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| 28 | ; CC00h OFF ON ON |
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| 29 | ; CE00h ON ON ON |
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| 30 | ; |
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| 31 | ; * Defaults |
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| 32 | ; Unknown = "Factory configured - do not alter" |
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| 33 | ; Bits 11...9 of the segment address corresponds to jumpers J3...J1. |
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| 34 | |
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| 35 | ADP50L_BIOS_SEGMENT_ADDRESS_1 EQU 0C800h ; Default |
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| 36 | ADP50L_BIOS_SEGMENT_ADDRESS_2 EQU 0CA00h |
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| 37 | ADP50L_BIOS_SEGMENT_ADDRESS_3 EQU 0CC00h |
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| 38 | ADP50L_BIOS_SEGMENT_ADDRESS_4 EQU 0CE00h |
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| 39 | ADP50L_DEFAULT_BIOS_SEGMENT_ADDRESS EQU ADP50L_BIOS_SEGMENT_ADDRESS_1 |
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| 40 | |
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| 41 | ; Offsets from BIOS segment address |
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| 42 | ADP50L_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET EQU 1D00h |
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| 43 | ADP50L_CONTROL_BLOCK_REGISTER_WINDOW_OFFSET EQU 1D10h ; The low byte is (8 SHL 1) |
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| 44 | ADP50L_SECTOR_ACCESS_WINDOW_OFFSET EQU 1E00h ; 512 byte IDE Sector Access Window |
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| 45 | |
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| 46 | ; All IDE register offsets are SHL 1 compared to the standard offsets. |
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| 47 | ; Example 1: STATUS_REGISTER_in = ADP50L_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET + (STATUS_REGISTER_in << 1) |
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| 48 | ; Example 2: DEVICE_CONTROL_REGISTER_out = ADP50L_CONTROL_BLOCK_REGISTER_WINDOW_OFFSET + (DEVICE_CONTROL_REGISTER_out << 1) |
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| 49 | |
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| 50 | %endif ; ADP50L_INC |
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