f40bfc9267
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
// Game_Music_Emu 0.6-pre. http://www.slack.net/~ant/
|
|
|
|
#include "ay_emu.h"
|
|
|
|
#include "blargg_endian.h"
|
|
//#include "z80_cpu_log.h"
|
|
|
|
/* Copyright (C) 2006-2008 Shay Green. This module is free software; you
|
|
can redistribute it and/or modify it under the terms of the GNU Lesser
|
|
General Public License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version. This
|
|
module 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 Lesser General Public License for more
|
|
details. You should have received a copy of the GNU Lesser General Public
|
|
License along with this module; if not, write to the Free Software Foundation,
|
|
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
|
|
|
|
#include "blargg_source.h"
|
|
|
|
void cpu_out( struct Ay_Emu* this, cpu_time_t time, addr_t addr, int data )
|
|
{
|
|
if ( (addr & 0xFF) == 0xFE )
|
|
{
|
|
check( !cpc_mode );
|
|
this->spectrum_mode = !this->cpc_mode;
|
|
|
|
// beeper_mask and last_beeper are 0 if (cpc_mode || !beeper_output)
|
|
if ( (data &= this->beeper_mask) != this->last_beeper )
|
|
{
|
|
this->last_beeper = data;
|
|
int delta = -this->beeper_delta;
|
|
this->beeper_delta = delta;
|
|
struct Blip_Buffer* bb = this->beeper_output;
|
|
Blip_set_modified( bb );
|
|
Synth_offset( &this->apu.synth_, time, delta, bb );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
cpu_out_( this, time, addr, data );
|
|
}
|
|
}
|
|
|
|
#define OUT_PORT( addr, data ) cpu_out( this, TIME(), addr, data )
|
|
#define IN_PORT( addr ) 0xFF // cpu in
|
|
#define FLAT_MEM mem
|
|
|
|
#define CPU_BEGIN \
|
|
bool run_cpu( struct Ay_Emu* this, cpu_time_t end_time ) \
|
|
{\
|
|
struct Z80_Cpu* cpu = &this->cpu; \
|
|
Z80_set_end_time( cpu, end_time ); \
|
|
byte* const mem = this->mem.ram; // cache
|
|
|
|
#include "z80_cpu_run.h"
|
|
|
|
return warning;
|
|
}
|