#include "../config.h" #include "machine.h" /* VERSION set by autoconf */ /* PACKAGE set by autoconf */ #define GEN_RAMLENGTH 64*1024 #define LEN_IPCLISTTABLE 16*1024 char *gen_loadimage(const char *filename); void gen_reset(void); void gen_softreset(void); void gen_loadmemrom(const char *rom, int romlen); #if defined(linux) #include #define SWAP16(x) bswap_16((x)) #define SWAP32(x) bswap_32((x)) #elif defined(__OpenBSD__) #include #define SWAP16(x) bswap_16((x)) #define SWAP32(x) bswap_32((x)) #else #define SWAP16(y) (( ((y)>>8) & 0x00ff) | (( ((y)<<8) & 0xff00))) #define SWAP32(y) (( ((y)>>24) & 0x000000ff) | \ (((y) >> 8) & 0x0000ff00) | \ (((y) << 8) & 0x00ff0000) | \ (((y) << 24) & 0xff000000) ) #warning "No native byte conversion" #endif /* * LOCENDIANxx takes data that came from a big endian source and converts it * into the local endian. On a big endian machine the data will already be * loaded correctly, however on a little endian machine the processor will * have loaded the data assuming little endian data, so we need to swap the * byte ordering. * * LOCENDIANxxL takes data that came from a little endian source and * converts it into the local endian. This means that on a little endian * machine the data will already be loaded correctly, however on a big * endian machine the processor will have loaded the data assuming big endian * data, so we need to swap the byte ordering. * * Both LOCENDIANxx and LOCENDIANxxL can be used in reverse - i.e. when * you have data in local endian that you need to write in big (LOCENDIANxx) * or little (LOCENDIANxxL) endian. * */ #ifdef WORDS_BIGENDIAN #define LOCENDIAN16(y) (y) #define LOCENDIAN32(y) (y) #define LOCENDIAN16L(y) SWAP16(y) #define LOCENDIAN32L(y) SWAP32(y) #define BYTES_HIGHFIRST 1 #else #define LOCENDIAN16(y) SWAP16(y) #define LOCENDIAN32(y) SWAP32(y) #define LOCENDIAN16L(y) (y) #define LOCENDIAN32L(y) (y) #endif typedef enum { tp_src, tp_dst } t_type; typedef enum { sz_none, sz_byte, sz_word, sz_long } t_size; typedef enum { dt_Dreg, dt_Areg, dt_Aind, dt_Ainc, dt_Adec, dt_Adis, dt_Aidx, dt_AbsW, dt_AbsL, dt_Pdis, dt_Pidx, dt_ImmB, dt_ImmW, dt_ImmL, dt_ImmS, dt_Imm3, dt_Imm4, dt_Imm8, dt_Imm8s, dt_ImmV, dt_Ill } t_datatype; typedef enum { ea_Dreg, ea_Areg, ea_Aind, ea_Ainc, ea_Adec, ea_Adis, ea_Aidx, ea_AbsW, ea_AbsL, ea_Pdis, ea_Pidx, ea_Imm } t_eatypes; typedef enum { i_ILLG, i_OR, i_ORSR, i_AND, i_ANDSR, i_EOR, i_EORSR, i_SUB, i_SUBA, i_SUBX, i_ADD, i_ADDA, i_ADDX, i_MULU, i_MULS, i_CMP, i_CMPA, i_BTST, i_BCHG, i_BCLR, i_BSET, i_MOVE, i_MOVEA, i_MOVEPMR, i_MOVEPRM, i_MOVEFSR, i_MOVETSR, i_MOVEMRM, i_MOVEMMR, i_MOVETUSP, i_MOVEFUSP, i_NEG, i_NEGX, i_CLR, i_NOT, i_ABCD, i_SBCD, i_NBCD, i_SWAP, i_PEA, i_LEA, i_EXT, i_EXG, i_TST, i_TAS, i_CHK, i_TRAPV, i_TRAP, i_RESET, i_NOP, i_STOP, i_LINK, i_UNLK, i_RTE, i_RTS, i_RTR, i_JSR, i_JMP, i_Scc, i_SF, i_DBcc, i_DBRA, i_Bcc, i_BSR, i_DIVU, i_DIVS, i_ASR, i_LSR, i_ROXR, i_ROR, i_ASL, i_LSL, i_ROXL, i_ROL, i_LINE10, i_LINE15 } t_mnemonic; typedef struct { uint16 mask; /* mask of bits that are static */ uint16 bits; /* bit values corresponding to bits in mask */ t_mnemonic mnemonic; /* instruction mnemonic */ struct { int priv:1; /* instruction is privileged if set */ int endblk:1; /* instruction ends a block if set */ int imm_notzero:1; /* immediate data cannot be 0 (if applicable) */ int used:5; /* bitmap of XNZVC flags inspected */ int set:5; /* bitmap of XNZVC flags altered */ } flags; t_size size; /* size of instruction */ t_datatype stype; /* type of source */ t_datatype dtype; /* type of destination */ unsigned int sbitpos:4; /* bit pos of imm data or reg part of EA */ unsigned int dbitpos:4; /* reg part of EA */ unsigned int immvalue; /* if stype is ImmS this is the value */ unsigned int cc; /* condition code if mnemonic is Scc/Dbcc/Bcc */ unsigned int funcnum; /* function number for this instruction */ unsigned int wordlen; /* length in words of this instruction */ unsigned int clocks; /* number of external clock periods */ } t_iib; /* instruction information block */ #define IIB_FLAG_X 1<<0 #define IIB_FLAG_N 1<<1 #define IIB_FLAG_Z 1<<2 #define IIB_FLAG_V 1<<3 #define IIB_FLAG_C 1<<4 typedef struct { t_mnemonic mnemonic; const char *name; } t_mnemonic_table; extern t_mnemonic_table mnemonic_table[]; extern char *condition_table[]; typedef union { struct { #ifndef BYTES_HIGHFIRST unsigned int c:1; unsigned int v:1; unsigned int z:1; unsigned int n:1; unsigned int x:1; unsigned int :3; unsigned int i0:1; unsigned int i1:1; unsigned int i2:1; unsigned int :2; unsigned int s:1; unsigned int :1; unsigned int t:1; #else unsigned int t:1; unsigned int :1; unsigned int s:1; unsigned int :2; unsigned int i2:1; unsigned int i1:1; unsigned int i0:1; unsigned int :3; unsigned int x:1; unsigned int n:1; unsigned int z:1; unsigned int v:1; unsigned int c:1; #endif } sr_struct; uint16 sr_int; } t_sr; typedef struct { uint32 pc; uint32 sp; t_sr sr; uint16 stop; uint32 regs[16]; uint16 pending; } t_regs; #define SR_CFLAG (1<<0) #define SR_VFLAG (1<<1) #define SR_ZFLAG (1<<2) #define SR_NFLAG (1<<3) #define SR_XFLAG (1<<4) #define SR_SFLAG (1<<13) #define SR_TFLAG (1<<15) /* Steve Snake / Charles MacDonald (msgid <3C427237.3CEC@value.net>) - * TAS on Genesis 1 and 2 (but not 3) do not write back with TAS */ #define BROKEN_TAS #ifdef NOLOGGING # define LOG_DEBUG3(x) /* */ # define LOG_DEBUG2(x) /* */ # define LOG_DEBUG1(x) /* */ # define LOG_USER(x) /* */ # define LOG_VERBOSE(x) /* */ # define LOG_NORMAL(x) /* */ # define LOG_CRITICAL(x) /* */ # define LOG_REQUEST(x) /* */ #else # define LOG_DEBUG3(x) /* ui_log_debug3 ## x */ # define LOG_DEBUG2(x) /* ui_log_debug2 ## x */ # define LOG_DEBUG1(x) /* ui_log_debug1 ## x */ # define LOG_USER(x) ui_log_user ## x # define LOG_VERBOSE(x) ui_log_verbose ## x # define LOG_NORMAL(x) ui_log_normal ## x # define LOG_CRITICAL(x) ui_log_critical ## x # define LOG_REQUEST(x) ui_log_request ## x #endif typedef struct { uint8 *sprite; /* pointer to sprite data or NULL for end of list */ uint8 hplot; /* number of cells to plot */ sint16 hpos, vpos; /* -128 upwards, top left position */ uint16 hsize, vsize; /* 1 to 4 for 8 to 32 pixels */ sint16 hmax, vmax; /* bottom right position */ } t_spriteinfo; typedef enum { pt_unknown, pt_game, pt_education } t_prodtype; typedef struct { char console[17]; char copyright[17]; char name_domestic[49]; char name_overseas[49]; t_prodtype prodtype; char version[13]; uint16 checksum; char memo[29]; char country[17]; uint8 flag_japan; /* old style JUE flags */ uint8 flag_usa; uint8 flag_europe; uint8 hardware; /* new style 4-bit bitmap, 0=japan,2=us,3=europe */ } t_cartinfo; typedef enum { musiclog_off, musiclog_gym, musiclog_gnm } t_musiclog; extern t_cartinfo gen_cartinfo; extern unsigned int gen_quit; extern unsigned int gen_debugmode; extern unsigned int gen_loglevel; extern unsigned int gen_autodetect; extern unsigned int gen_modifiedrom; extern t_musiclog gen_musiclog; extern char gen_leafname[];