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authorSean Bartell <wingedtachikoma@gmail.com>2011-06-25 21:32:25 -0400
committerNils Wallménius <nils@rockbox.org>2012-04-25 22:13:20 +0200
commitf40bfc9267b13b54e6379dfe7539447662879d24 (patch)
tree9b20069d5e62809ff434061ad730096836f916f2 /apps/codecs/libgme/nsf_cpu.c
parenta0009907de7a0107d49040d8a180f140e2eff299 (diff)
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Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'apps/codecs/libgme/nsf_cpu.c')
-rw-r--r--apps/codecs/libgme/nsf_cpu.c115
1 files changed, 0 insertions, 115 deletions
diff --git a/apps/codecs/libgme/nsf_cpu.c b/apps/codecs/libgme/nsf_cpu.c
deleted file mode 100644
index 1f44bd3..0000000
--- a/apps/codecs/libgme/nsf_cpu.c
+++ /dev/null
@@ -1,115 +0,0 @@
-// Normal cpu for NSF emulator
-
-// Game_Music_Emu 0.6-pre. http://www.slack.net/~ant/
-
-#include "nsf_emu.h"
-
-#include "blargg_endian.h"
-
-#ifdef BLARGG_DEBUG_H
- //#define CPU_LOG_START 1000000
- //#include "nes_cpu_log.h"
- #undef LOG_MEM
-#endif
-
-/* Copyright (C) 2003-2008 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"
-
-#ifndef LOG_MEM
- #define LOG_MEM( addr, str, data ) data
-#endif
-
-int read_mem( struct Nsf_Emu* this, addr_t addr )
-{
- int result = this->low_ram [addr & (low_ram_size-1)]; // also handles wrap-around
- if ( addr & 0xE000 )
- {
- result = *Cpu_get_code( &this->cpu, addr );
- if ( addr < sram_addr )
- {
- if ( addr == apu_status_addr )
- result = Apu_read_status( &this->apu, Cpu_time( &this->cpu ) );
- else
- result = cpu_read( this, addr );
- }
- }
- return LOG_MEM( addr, ">", result );
-}
-
-void write_mem( struct Nsf_Emu* this, addr_t addr, int data )
-{
- (void) LOG_MEM( addr, "<", data );
-
- int offset = addr - sram_addr;
- if ( (unsigned) offset < sram_size )
- {
- sram( this ) [offset] = data;
- }
- else
- {
- // after sram because cpu handles most low_ram accesses internally already
- int temp = addr & (low_ram_size-1); // also handles wrap-around
- if ( !(addr & 0xE000) )
- {
- this->low_ram [temp] = data;
- }
- else
- {
- int bank = addr - banks_addr;
- if ( (unsigned) bank < bank_count )
- {
- write_bank( this, bank, data );
- }
- else if ( (unsigned) (addr - apu_io_addr) < apu_io_size )
- {
- Apu_write_register( &this->apu, Cpu_time( &this->cpu ), addr, data );
- }
- else
- {
- #ifndef NSF_EMU_APU_ONLY
- // 0x8000-0xDFFF is writable
- int i = addr - 0x8000;
- if ( fds_enabled( this ) && (unsigned) i < fdsram_size )
- fdsram( this ) [i] = data;
- else
- #endif
- cpu_write( this, addr, data );
- }
- }
- }
-}
-
-#define READ_LOW( addr ) (LOG_MEM( addr, ">", this->low_ram [addr] ))
-#define WRITE_LOW( addr, data ) (LOG_MEM( addr, "<", this->low_ram [addr] = data ))
-
-#define CAN_WRITE_FAST( addr ) (addr < low_ram_size)
-#define WRITE_FAST WRITE_LOW
-
-// addr < 0x2000 || addr >= 0x8000
-#define CAN_READ_FAST( addr ) ((addr ^ 0x8000) < 0xA000)
-#define READ_FAST( addr, out ) (LOG_MEM( addr, ">", out = READ_CODE( addr ) ))
-
-#define READ_MEM( addr ) read_mem( this, addr )
-#define WRITE_MEM( addr, data ) write_mem( this, addr, data )
-
-#define CPU_BEGIN \
-bool run_cpu_until( struct Nsf_Emu* this, nes_time_t end ) \
-{ \
- struct Nes_Cpu* cpu = &this->cpu; \
- Cpu_set_end_time( cpu, end ); \
- if ( *Cpu_get_code( cpu, cpu->r.pc ) != halt_opcode ) \
- {
- #include "nes_cpu_run.h"
- }
- return Cpu_time_past_end( cpu ) < 0;
-}