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* ciacore.h - Template file for MOS6526 (CIA) emulation.
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* Andr� Fachat <fachat@physik.tu-chemnitz.de>
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* Ettore Perazzoli <ettore@comm2000.it>
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* Andreas Boose <boose@rzgw.rz.fh-hannover.de>
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* This file is part of VICE, the Versatile Commodore Emulator.
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* See README for copyright notice.
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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.
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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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* 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., 59 Temple Place, Suite 330, Boston, MA
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#ifdef CIA_SHARED_CODE
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#define CIA_CONTEXT_PARAM CIACONTEXT *ctxptr,
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#define CIA_CONTEXT_PARVOID CIACONTEXT *ctxptr
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#define CIA_CONTEXT_CALL ctxptr,
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#define CIA_CONTEXT_CALLVOID ctxptr
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#define CIARPARM1 REGPARM2
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#define CIARPARM2 REGPARM3
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#define CIA_CONTEXT_PARAM
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#define CIA_CONTEXT_PARVOID void
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#define CIA_CONTEXT_CALL
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#define CIA_CONTEXT_CALLVOID
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#define CIARPARM1 REGPARM1
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#define CIARPARM2 REGPARM2
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* Prototypes for the used inline functions
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static inline void do_reset_cia(CIA_CONTEXT_PARVOID);
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static inline void store_sdr(CIA_CONTEXT_PARAM BYTE byte);
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static inline void read_ciaicr(CIA_CONTEXT_PARVOID);
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static inline void store_ciapa(CIA_CONTEXT_PARAM CLOCK rclk, BYTE byte);
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static inline void store_ciapb(CIA_CONTEXT_PARAM CLOCK rclk, BYTE byte);
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static inline void pulse_ciapc(CIA_CONTEXT_PARAM CLOCK rclk);
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static inline void undump_ciapa(CIA_CONTEXT_PARAM CLOCK rclk, BYTE byte);
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static inline void undump_ciapb(CIA_CONTEXT_PARAM CLOCK rclk, BYTE byte);
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static inline BYTE read_ciapa(CIA_CONTEXT_PARVOID);
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static inline BYTE read_ciapb(CIA_CONTEXT_PARVOID);
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#define STORE_OFFSET 1
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#define CIAT_STOPPED 0
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#define CIAT_RUNNING 1
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#define CIAT_COUNTTA 2
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* Local variable and prototypes - moved here because they're used by
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* the inline functions
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static void int_ciata(CIA_CONTEXT_PARAM CLOCK offset);
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static void int_ciatb(CIA_CONTEXT_PARAM CLOCK offset);
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static void int_ciatod(CIA_CONTEXT_PARAM CLOCK offset);
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#ifndef CIA_SHARED_CODE
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#define ciaier cia[CIA_ICR]
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static int ciaint; /* Interrupt Flag register for cia 1 */
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static CLOCK ciardi; /* real clock = clk-offset */
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static unsigned int cia_tat; /* timer A toggle bit */
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static unsigned int cia_tbt; /* timer B toggle bit */
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static CLOCK cia_todclk; /* when is the next TOD alarm scheduled? */
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static unsigned int ciasr_bits; /* number of bits still to send */
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static BYTE cia_shifter; /* actual shifter */
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static int cia_sdr_valid; /* when set, SDR contains new data to send */
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static BYTE oldpa; /* the actual output on PA (input = high) */
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static BYTE oldpb; /* the actual output on PB (input = high) */
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static BYTE ciatodalarm[4];
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static BYTE ciatodlatch[4];
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static char ciatodstopped;
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static char ciatodlatched;
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static int ciatodticks = 100000; /* approx. a 1/10 sec. */
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static log_t cia_log = LOG_ERR;
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/* local functions */
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static void check_ciatodalarm(CIA_CONTEXT_PARAM CLOCK rclk);
added
removed
src/ciacore.h
