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Diffstat (limited to 'plugins/gme/Game_Music_Emu-0.5.2/gme/Gb_Cpu.h')
-rw-r--r--plugins/gme/Game_Music_Emu-0.5.2/gme/Gb_Cpu.h93
1 files changed, 0 insertions, 93 deletions
diff --git a/plugins/gme/Game_Music_Emu-0.5.2/gme/Gb_Cpu.h b/plugins/gme/Game_Music_Emu-0.5.2/gme/Gb_Cpu.h
deleted file mode 100644
index 953fbaf5..00000000
--- a/plugins/gme/Game_Music_Emu-0.5.2/gme/Gb_Cpu.h
+++ /dev/null
@@ -1,93 +0,0 @@
-// Nintendo Game Boy CPU emulator
-// Treats every instruction as taking 4 cycles
-
-// Game_Music_Emu 0.5.2
-#ifndef GB_CPU_H
-#define GB_CPU_H
-
-#include "blargg_common.h"
-#include "blargg_endian.h"
-
-typedef unsigned gb_addr_t; // 16-bit CPU address
-
-class Gb_Cpu {
- enum { clocks_per_instr = 4 };
-public:
- typedef BOOST::uint8_t uint8_t;
-
- // Clear registers and map all pages to unmapped
- void reset( void* unmapped = 0 );
-
- // Map code memory (memory accessed via the program counter). Start and size
- // must be multiple of page_size.
- enum { page_size = 0x2000 };
- void map_code( gb_addr_t start, unsigned size, void* code );
-
- uint8_t* get_code( gb_addr_t );
-
- // Push a byte on the stack
- void push_byte( int );
-
- // Game Boy Z80 registers. *Not* kept updated during a call to run().
- struct core_regs_t {
- #if BLARGG_BIG_ENDIAN
- uint8_t b, c, d, e, h, l, flags, a;
- #else
- uint8_t c, b, e, d, l, h, a, flags;
- #endif
- };
-
- struct registers_t : core_regs_t {
- long pc; // more than 16 bits to allow overflow detection
- BOOST::uint16_t sp;
- };
- registers_t r;
-
- // Interrupt enable flag set by EI and cleared by DI
- //bool interrupts_enabled; // unused
-
- // Base address for RST vectors (normally 0)
- gb_addr_t rst_base;
-
- // If CPU executes opcode 0xFF at this address, it treats as illegal instruction
- enum { idle_addr = 0xF00D };
-
- // Run CPU for at least 'count' cycles and return false, or return true if
- // illegal instruction is encountered.
- bool run( blargg_long count );
-
- // Number of clock cycles remaining for most recent run() call
- blargg_long remain() const { return state->remain * clocks_per_instr; }
-
- // Can read this many bytes past end of a page
- enum { cpu_padding = 8 };
-
-public:
- Gb_Cpu() : rst_base( 0 ) { state = &state_; }
- enum { page_shift = 13 };
- enum { page_count = 0x10000 >> page_shift };
-private:
- // noncopyable
- Gb_Cpu( const Gb_Cpu& );
- Gb_Cpu& operator = ( const Gb_Cpu& );
-
- struct state_t {
- uint8_t* code_map [page_count + 1];
- blargg_long remain;
- };
- state_t* state; // points to state_ or a local copy within run()
- state_t state_;
-
- void set_code_page( int, uint8_t* );
-};
-
-inline BOOST::uint8_t* Gb_Cpu::get_code( gb_addr_t addr )
-{
- return state->code_map [addr >> page_shift] + addr
- #if !BLARGG_NONPORTABLE
- % (unsigned) page_size
- #endif
- ;
-}
-
-#endif