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[/] [t48/] [tags/] [rel_0_5_beta/] [sw/] [i8039emu/] [i8039.h] - Rev 295
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/************************************************************************** * Intel 8039 Portable Emulator * * * * Copyright (C) 1997 by Mirko Buffoni * * Based on the original work (C) 1997 by Dan Boris, an 8048 emulator * * You are not allowed to distribute this software commercially * * Please, notify me, if you make any changes to this file * * * * Adapted for the T48 uController project, 2004 by Arnim Laeuger * * See http://www.opencores.org/projects.cgi/web/t48/overview * * * * $Id: i8039.h,v 1.2 2004-04-15 22:03:53 arniml Exp $ **************************************************************************/ #ifndef _I8039_H #define _I8039_H #ifndef INLINE #define INLINE static inline #endif #include "types.h" /************************************************************************** Internal Clock divisor External Clock is divided internally by 3 to produce the machine state generator. This is then divided by 5 for the instruction cycle times. (Each instruction cycle passes through 5 machine states). */ #define I8039_CLOCK_DIVIDER (3*5) enum { I8039_PC=1, I8039_SP, I8039_PSW, I8039_A, I8039_TC, I8039_P1, I8039_P2, I8039_R0, I8039_R1, I8039_R2, I8039_R3, I8039_R4, I8039_R5, I8039_R6, I8039_R7 }; /* This handling of special I/O ports should be better for actual MAME * architecture. (i.e., define access to ports { I8039_p1, I8039_p1, dkong_out_w }) */ #define I8039_p0 0x100 /* Not used */ #define I8039_p1 0x101 #define I8039_p2 0x102 #define I8039_p4 0x104 #define I8039_p5 0x105 #define I8039_p6 0x106 #define I8039_p7 0x107 #define I8039_t0 0x110 #define I8039_t1 0x111 #define I8039_bus 0x120 #include "memory.h" /* * Input a UINT8 from given I/O port */ #define I8039_In(Port) ((UINT8)io_read_byte_8((UINT8)Port)) /* * Output a UINT8 to given I/O port */ #define I8039_Out(Port,Value) (io_write_byte_8((UINT8)Port,(UINT8)Value)) /* * Read a UINT8 from given memory location */ #define I8039_RDMEM(A) ((unsigned)program_read_byte_8(A)) /* * Write a UINT8 to given memory location */ #define I8039_WRMEM(A,V) (program_write_byte_8(A,V)) /* * I8039_RDOP() is identical to I8039_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 I8039_RDOP(A) ((unsigned)cpu_readop(A)) /* * I8039_RDOP_ARG() is identical to I8039_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 I8039_RDOP_ARG(A) ((unsigned)cpu_readop_arg(A)) int Dasm8039(char *dst, unsigned pc); void i8039_reset(void *); int i8039_execute(int, int); void set_irq_line(int, int); void logerror(char *, UINT16, UINT8); #endif /* _I8039_H */
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