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