mirror of https://github.com/buserror/mii_emu.git
143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
/*
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* mii_sw.h
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*
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* Copyright (C) 2023 Michel Pollet <buserror@gmail.com>
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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enum {
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SWKBD = 0xc000,
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SW80STOREOFF = 0xc000,
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SW80STOREON = 0xc001,
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SWRAMRDOFF = 0xc002,
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SWRAMRDON = 0xc003,
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SWRAMWRTOFF = 0xc004,
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SWRAMWRTON = 0xc005,
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SWINTCXROMOFF = 0xc006,
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SWINTCXROMON = 0xc007,
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SWALTPZOFF = 0xc008,
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SWALTPZON = 0xc009,
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SWSLOTC3ROMOFF = 0xc00a,
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SWSLOTC3ROMON = 0xc00b,
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SW80COLOFF = 0xc00c,
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SW80COLON = 0xc00d,
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SWALTCHARSETOFF = 0xc00e,
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SWALTCHARSETON = 0xc00f,
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SWAKD = 0xc010,
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SWBSRBANK2 = 0xc011,
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SWBSRREADRAM = 0xc012,
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SWRAMRD = 0xc013,
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SWRAMWRT = 0xc014,
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SWINTCXROM = 0xc015,
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SWALTPZ = 0xc016,
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SWSLOTC3ROM = 0xc017,
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SW80STORE = 0xc018,
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SWVBL = 0xc019,
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SWALTCHARSET = 0xc01e,
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SW80COL = 0xc01f,
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SWTEXT = 0xc01a,
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SWMIXED = 0xc01b,
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SWPAGE2 = 0xc01c,
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SWHIRES = 0xc01d,
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SWSPEAKER = 0xc030,
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SWTEXTOFF = 0xc050, // (AKA LORES ON)
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SWTEXTON = 0xc051,
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SWMIXEDOFF = 0xc052,
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SWMIXEDON = 0xc053,
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SWPAGE2OFF = 0xc054,
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SWPAGE2ON = 0xc055,
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SWHIRESOFF = 0xc056,
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SWHIRESON = 0xc057,
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// this one is inverted, the ON is the even address
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SWDHIRESON = 0xc05e, // AN3_OFF
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SWDHIRESOFF = 0xc05f, // AN3_ON
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SWAN3 = 0xc05e, // AN3 status
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SWAN3_REGISTER = 0xc05f, // AN3 register for video mode
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SWRAMWORKS_BANK = 0xc073,
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SWRDDHIRES = 0xc07f,
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};
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/*
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* This is for a bitfield in mii_t that keeps track of the state of the
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* softswitches used for memory mapping and video.
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*/
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enum {
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B_SW80STORE = ( 0),
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B_SWALTCHARSET = ( 1),
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B_SW80COL = ( 2),
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B_SWTEXT = ( 3),
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B_SWMIXED = ( 4),
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B_SWPAGE2 = ( 5),
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B_SWHIRES = ( 6),
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B_SWRAMRD = ( 7),
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B_SWRAMWRT = ( 8),
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B_SWINTCXROM = ( 9),
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B_SWALTPZ = (10),
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B_SWSLOTC3ROM = (11),
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B_BSRWRITE = (12),
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B_BSRREAD = (13),
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B_BSRPAGE2 = (14),
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B_BSRPREWRITE = (15),
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B_SWDHIRES = (16),
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// this is no 'real' softwitch, but a bit to mention a card has
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// it's secondary rom online in pages c800-cfff
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B_INTC8ROM = (17),
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M_SW80STORE = (1 << B_SW80STORE),
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M_SWALTCHARSET = (1 << B_SWALTCHARSET),
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M_SW80COL = (1 << B_SW80COL),
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M_SWTEXT = (1 << B_SWTEXT),
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M_SWMIXED = (1 << B_SWMIXED),
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M_SWPAGE2 = (1 << B_SWPAGE2),
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M_SWHIRES = (1 << B_SWHIRES),
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M_SWRAMRD = (1 << B_SWRAMRD),
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M_SWRAMWRT = (1 << B_SWRAMWRT),
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M_SWINTCXROM = (1 << B_SWINTCXROM),
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M_SWALTPZ = (1 << B_SWALTPZ),
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M_SWSLOTC3ROM = (1 << B_SWSLOTC3ROM),
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M_BSRWRITE = (1 << B_BSRWRITE),
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M_BSRREAD = (1 << B_BSRREAD),
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M_BSRPAGE2 = (1 << B_BSRPAGE2),
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M_BSRPREWRITE = (1 << B_BSRPREWRITE),
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M_SWDHIRES = (1 << B_SWDHIRES),
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M_INTC8ROM = (1 << B_INTC8ROM),
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};
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#define __unused__ __attribute__((unused))
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// unused is to prevent the stupid warnings about unused static stuff
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static const char __unused__ *mii_sw_names[] = {
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"80STORE",
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"ALTCHARSET",
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"80COL",
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"TEXT",
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"MIXED",
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"PAGE2",
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"HIRES",
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"RAMRD",
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"RAMWRT",
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"INTCXROM",
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"ALTPZ",
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"SLOTC3ROM",
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"BSRWRITE",
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"BSRREAD",
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"BSRPAGE2",
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"BSRPREWRITE",
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"DHIRES",
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"INTC8ROM",
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NULL,
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} ;
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#define SWW_SETSTATE(_bits, _sw, _state) \
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(_bits) = ((_bits) & ~(M_##_sw)) | \
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(!!(_state) << B_##_sw)
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#define SWW_GETSTATE(_bits, _sw) \
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(!!((_bits) & M_##_sw))
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#define SW_SETSTATE(_mii, _sw, _state) \
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SWW_SETSTATE((_mii)->sw_state, _sw, _state)
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#define SW_GETSTATE(_mii, _sw) \
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SWW_GETSTATE((_mii)->sw_state, _sw)
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