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21 lines
489 B
Modula-2
21 lines
489 B
Modula-2
; ay.def - definitions for AY-3-8910/8912/8913 and compatible PSG.
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;
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; SPDX-FileCopyrightText: 2021 Ivan Tatarinov <ivan-tat@ya.ru>
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;
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; SPDX-License-Identifier: Unlicense
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; Compatible compilers:
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; SJAsmPlus, <https://github.com/sjasmplus/sjasmplus/>
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ifndef ay_def_included
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define ay_def_included
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ay_freq_Spectrum: equ 1773400
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ay_freq_Pentagon: equ 1750000
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ay_freq_AmstradCPC: equ 1000000
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ay_ctrl_port: equ $fffd
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ay_data_port: equ $bffd
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endif ; !ay_def_included
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