1d6df54df2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21205 a1c6a512-1295-4272-9138-f99709370657
84 lines
3.6 KiB
C
84 lines
3.6 KiB
C
/*
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* Copyright (C) 1996-1998 Szeredi Miklos
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* Email: mszeredi@inf.bme.hu
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version. See the file COPYING.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "spperif.h"
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#define MARK_SCR(addr) SPNM(scr_mark)[(addr) >> 5] |= BIT_N((addr) & 0x1F)
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#define PUTMEM(addr, ptr, val) \
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{ \
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register byte addrhi; \
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addrhi = (dbyte) (addr) >> 8; \
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if(addrhi >= 0x5B) *(ptr) = (val); \
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else if(addrhi & 0x40) { \
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*(ptr) = (val); \
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MARK_SCR((dbyte) (addr)); \
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if(DANM(next_scri) >= 0 && DANM(tc) > 86) \
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DANM(tc) -= 2; \
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} \
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}
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#define SOUNDPORT 0x10
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/* TODO: attribute or pixel byte is present on unused ports? */
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#define IN(porth, portl, dest) \
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{ \
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if(!((portl) & DANM(inport_mask))) { \
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dest = PORT(inports)[portl]; \
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} \
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else if(!((portl) & 1)) { \
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if(DANM(imp_change) > DANM(tc)) { \
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DANM(imp_change) = 0; \
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DANM(ula_inport) ^= 0x40; \
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} \
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dest = SPECP(fe_inport_high)[porth] & DANM(ula_inport); \
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DANM(tc) -= 1; \
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} \
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else { \
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register int scri; \
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scri = DANM(next_scri); \
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dest = (scri < 0 || DANM(tc) <= 96) \
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? 0xFF : DANM(mem)[(scri<<5)+((224-DANM(tc))>>2)]; \
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} \
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}
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#define OUT(porth, portl, source) \
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{ \
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if(!((portl) & 1)) { \
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if((DANM(ula_outport) ^ (source)) & SOUNDPORT) { \
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DANM(sound_change) = 1; \
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if((source) & SOUNDPORT) DANM(sound_sam) += DANM(tc); \
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else DANM(sound_sam) -= DANM(tc); \
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} \
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DANM(ula_outport) = (source); \
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DANM(tc) -= 1; \
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} \
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PORT(outports)[portl] = (source); \
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}
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#define DI_CHECK \
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if(PC == LOAD_DI+1 && SPNM(quick_load)) \
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SPNM(load_trapped) = 1, \
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DANM(haltstate) = 1, \
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DANM(tc) = 0;
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