From acb0917556fc33681c1df5a530cf754193e67705 Mon Sep 17 00:00:00 2001
From: Andree Buschmann <AndreeBuschmann@t-online.de>
Date: Sun, 7 Aug 2011 20:01:04 +0000
Subject: Submit initial patch from FS#12176. Adds support for several new game
 music formats (AY, GBS, HES, KSS, SGC, VGM and VGZ) and replaces the current
 NSF and NSFE with a new implementation based on a port of the Game Music Emu
 library 'GME'. This first submit does not cover the full functionality
 provided by the author's original patch: Coleco-SGV is not supported, some
 GME-specific m3u-support has been removed and IRAM is not used yet. Further
 changes are very likely to follow this submit. Thanks to Mauricio Garrido.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30264 a1c6a512-1295-4272-9138-f99709370657
---
 apps/codecs/libgme/hes_cpu_io.h | 72 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 apps/codecs/libgme/hes_cpu_io.h

(limited to 'apps/codecs/libgme/hes_cpu_io.h')

diff --git a/apps/codecs/libgme/hes_cpu_io.h b/apps/codecs/libgme/hes_cpu_io.h
new file mode 100644
index 0000000000..6b49c69e22
--- /dev/null
+++ b/apps/codecs/libgme/hes_cpu_io.h
@@ -0,0 +1,72 @@
+
+#include "hes_emu.h"
+
+#include "blargg_source.h"
+
+int Cpu_read( struct Hes_Emu* this, hes_addr_t addr )
+{
+	check( addr <= 0xFFFF );
+	int result = *Cpu_get_code( &this->cpu, addr );
+	if ( this->cpu.mmr [addr >> page_shift] == 0xFF )
+		result = Emu_cpu_read( this, addr );
+	return result;
+}
+
+void Cpu_write( struct Hes_Emu* this, hes_addr_t addr, int data )
+{
+	check( addr <= 0xFFFF );
+	byte* out = this->write_pages [addr >> page_shift];
+	addr &= page_size - 1;
+	if ( out )
+		out [addr] = data;
+	else if ( this->cpu.mmr [addr >> page_shift] == 0xFF )
+		Emu_cpu_write( this, addr, data );
+}
+
+#define CPU_READ_FAST( emu, addr, time, out ) \
+	CPU_READ_FAST_( emu, addr, time, out )
+
+#define CPU_READ_FAST_( emu, addr, time, out ) \
+{\
+	out = READ_PROG( addr );\
+	if ( emu->cpu.mmr [addr >> page_shift] == 0xFF )\
+	{\
+		FLUSH_TIME();\
+		out = Emu_cpu_read( emu, addr );\
+		CACHE_TIME();\
+	}\
+}
+
+#define CPU_WRITE_FAST( emu, addr, data, time ) \
+	CPU_WRITE_FAST_( emu, addr, data, time )
+
+#define CPU_WRITE_FAST_( emu, addr, data, time ) \
+{\
+	byte* out = emu->write_pages [addr >> page_shift];\
+	addr &= page_size - 1;\
+	if ( out )\
+	{\
+		out [addr] = data;\
+	}\
+	else if ( emu->cpu.mmr [addr >> page_shift] == 0xFF )\
+	{\
+		FLUSH_TIME();\
+		Emu_cpu_write( emu, addr, data );\
+		CACHE_TIME();\
+	}\
+}
+
+#define CPU_READ( emu, addr, time ) \
+	Cpu_read( emu, addr )
+
+#define CPU_WRITE( emu, addr, data, time ) \
+	Cpu_write( emu, addr, data )
+
+#define CPU_WRITE_VDP( emu, addr, data, time ) \
+	Cpu_write_vdp( emu, addr, data )
+
+#define CPU_SET_MMR( emu, page, bank ) \
+	Emu_cpu_set_mmr( emu, page, bank )
+
+#define CPU_DONE( emu, time, result_out ) \
+	result_out = Cpu_done( emu )
-- 
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