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Diffstat (limited to 'src/emu/cpu/alph8201/alph8201.h')
-rw-r--r-- | src/emu/cpu/alph8201/alph8201.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/emu/cpu/alph8201/alph8201.h b/src/emu/cpu/alph8201/alph8201.h new file mode 100644 index 00000000000..0457ea42ac8 --- /dev/null +++ b/src/emu/cpu/alph8201/alph8201.h @@ -0,0 +1,72 @@ + /**************************************************************************\ + * Alpha8201 Emulator * + * * + * Copyright (C) 2006 Tatsuyuki Satoh * + * Originally written for the MAME project. * + * * + * * + \**************************************************************************/ + +#ifndef _ALPH8202_H +#define _ALPH8202_H + +#ifndef INLINE +#define INLINE static inline +#endif + +#include "cpuintrf.h" + +enum { + ALPHA8201_PC=1, + ALPHA8201_SP, + ALPHA8201_RB, + ALPHA8201_MB, +// + ALPHA8201_CF, + ALPHA8201_ZF, +// + ALPHA8201_IX0, + ALPHA8201_IX1, + ALPHA8201_IX2, + ALPHA8201_LP0, + ALPHA8201_LP1, + ALPHA8201_LP2, + ALPHA8201_A, + ALPHA8201_B, +// + ALPHA8201_R0,ALPHA8201_R1,ALPHA8201_R2,ALPHA8201_R3, + ALPHA8201_R4,ALPHA8201_R5,ALPHA8201_R6,ALPHA8201_R7 +}; + +extern void ALPHA8201_get_info(UINT32 state, cpuinfo *info); +extern void ALPHA8301_get_info(UINT32 state, cpuinfo *info); + +/* + * Read a UINT8 from given memory location + */ +#define ALPHA8201_RDMEM(A) ((unsigned)program_read_byte_8(A)) + +/* + * Write a UINT8 to given memory location + */ +#define ALPHA8201_WRMEM(A,V) (program_write_byte_8(A,V)) + +/* + * ALPHA8201_RDOP() is identical to ALPHA8201_RDMEM() except it is used for reading + * opcodes. In case of system with memory mapped I/O, this function can be + * used to greatly speed up emulation + */ +#define ALPHA8201_RDOP(A) ((unsigned)cpu_readop(A)) + +/* + * ALPHA8201_RDOP_ARG() is identical to ALPHA8201_RDOP() except it is used for reading + * opcode arguments. This difference can be used to support systems that + * use different encoding mechanisms for opcodes and opcode arguments + */ +#define ALPHA8201_RDOP_ARG(A) ((unsigned)cpu_readop_arg(A)) + +#ifdef MAME_DEBUG +offs_t ALPHA8201_dasm(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram); +#endif + +#endif /* _ALPHA8201_H */ |