60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
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// Game_Music_Emu 0.6-pre. http://www.slack.net/~ant/
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#include "ay_emu.h"
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#include "blargg_endian.h"
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//#include "z80_cpu_log.h"
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/* Copyright (C) 2006-2008 Shay Green. This module is free software; you
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can redistribute it and/or modify it under the terms of the GNU Lesser
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General Public License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version. This
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module is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details. You should have received a copy of the GNU Lesser General Public
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License along with this module; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "blargg_source.h"
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void cpu_out( struct Ay_Emu* this, cpu_time_t time, addr_t addr, int data )
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{
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if ( (addr & 0xFF) == 0xFE )
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{
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check( !cpc_mode );
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this->spectrum_mode = !this->cpc_mode;
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// beeper_mask and last_beeper are 0 if (cpc_mode || !beeper_output)
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if ( (data &= this->beeper_mask) != this->last_beeper )
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{
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this->last_beeper = data;
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int delta = -this->beeper_delta;
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this->beeper_delta = delta;
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struct Blip_Buffer* bb = this->beeper_output;
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Blip_set_modified( bb );
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Synth_offset( &this->apu.synth_, time, delta, bb );
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}
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}
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else
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{
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cpu_out_( this, time, addr, data );
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}
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}
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#define OUT_PORT( addr, data ) cpu_out( this, TIME(), addr, data )
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#define IN_PORT( addr ) 0xFF // cpu in
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#define FLAT_MEM mem
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#define CPU_BEGIN \
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bool run_cpu( struct Ay_Emu* this, cpu_time_t end_time ) \
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{\
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struct Z80_Cpu* cpu = &this->cpu; \
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Z80_set_end_time( cpu, end_time ); \
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byte* const mem = this->mem.ram; // cache
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#include "z80_cpu_run.h"
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return warning;
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}
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