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1.1.1.3 root 1: #include "../config.h"
1.1 root 2: #include "machine.h"
3:
1.1.1.4 root 4: /* VERSION set by autoconf */
5: /* PACKAGE set by autoconf */
6:
1.1 root 7: #define GEN_RAMLENGTH 64*1024
8:
9: #define LEN_IPCLISTTABLE 16*1024
10:
11: char *gen_loadimage(const char *filename);
12: void gen_reset(void);
1.1.1.2 root 13: void gen_softreset(void);
1.1.1.4 root 14: void gen_loadmemrom(const char *rom, int romlen);
1.1 root 15:
1.1.1.5 ! root 16: #if defined(linux)
! 17: #include <byteswap.h>
! 18: #define SWAP16(x) bswap_16((x))
! 19: #define SWAP32(x) bswap_32((x))
! 20: #elif defined(__OpenBSD__)
! 21: #include <machine/endian.h>
! 22: #define SWAP16(x) bswap_16((x))
! 23: #define SWAP32(x) bswap_32((x))
! 24: #else
! 25: #define SWAP16(y) (( ((y)>>8) & 0x00ff) | (( ((y)<<8) & 0xff00)))
! 26: #define SWAP32(y) (( ((y)>>24) & 0x000000ff) | \
! 27: (((y) >> 8) & 0x0000ff00) | \
! 28: (((y) << 8) & 0x00ff0000) | \
! 29: (((y) << 24) & 0xff000000) )
! 30: #warning "No native byte conversion"
! 31: #endif
! 32:
! 33: /*
! 34: * LOCENDIANxx takes data that came from a big endian source and converts it
! 35: * into the local endian. On a big endian machine the data will already be
! 36: * loaded correctly, however on a little endian machine the processor will
! 37: * have loaded the data assuming little endian data, so we need to swap the
! 38: * byte ordering.
! 39: *
! 40: * LOCENDIANxxL takes data that came from a little endian source and
! 41: * converts it into the local endian. This means that on a little endian
! 42: * machine the data will already be loaded correctly, however on a big
! 43: * endian machine the processor will have loaded the data assuming big endian
! 44: * data, so we need to swap the byte ordering.
! 45: *
! 46: * Both LOCENDIANxx and LOCENDIANxxL can be used in reverse - i.e. when
! 47: * you have data in local endian that you need to write in big (LOCENDIANxx)
! 48: * or little (LOCENDIANxxL) endian.
! 49: *
! 50: */
! 51:
1.1 root 52: #ifdef WORDS_BIGENDIAN
53: #define LOCENDIAN16(y) (y)
54: #define LOCENDIAN32(y) (y)
1.1.1.5 ! root 55: #define LOCENDIAN16L(y) SWAP16(y)
! 56: #define LOCENDIAN32L(y) SWAP32(y)
! 57: #define BYTES_HIGHFIRST 1
1.1 root 58: #else
1.1.1.5 ! root 59: #define LOCENDIAN16(y) SWAP16(y)
! 60: #define LOCENDIAN32(y) SWAP32(y)
! 61: #define LOCENDIAN16L(y) (y)
! 62: #define LOCENDIAN32L(y) (y)
1.1 root 63: #endif
64:
65: typedef enum {
66: tp_src, tp_dst
67: } t_type;
68:
69: typedef enum {
70: sz_none, sz_byte, sz_word, sz_long
71: } t_size;
72:
73: typedef enum {
74: dt_Dreg, dt_Areg, dt_Aind, dt_Ainc, dt_Adec, dt_Adis, dt_Aidx,
75: dt_AbsW, dt_AbsL, dt_Pdis, dt_Pidx,
76: dt_ImmB, dt_ImmW, dt_ImmL, dt_ImmS,
77: dt_Imm3, dt_Imm4, dt_Imm8, dt_Imm8s, dt_ImmV,
78: dt_Ill
79: } t_datatype;
80:
81: typedef enum {
82: ea_Dreg, ea_Areg, ea_Aind, ea_Ainc, ea_Adec, ea_Adis, ea_Aidx,
83: ea_AbsW, ea_AbsL, ea_Pdis, ea_Pidx, ea_Imm
84: } t_eatypes;
85:
86: typedef enum {
87: i_ILLG,
88: i_OR, i_ORSR,
89: i_AND, i_ANDSR,
90: i_EOR, i_EORSR,
91: i_SUB, i_SUBA, i_SUBX,
92: i_ADD, i_ADDA, i_ADDX,
93: i_MULU, i_MULS,
94: i_CMP, i_CMPA,
95: i_BTST, i_BCHG, i_BCLR, i_BSET,
96: i_MOVE, i_MOVEA,
97: i_MOVEPMR, i_MOVEPRM,
98: i_MOVEFSR, i_MOVETSR,
99: i_MOVEMRM, i_MOVEMMR,
100: i_MOVETUSP, i_MOVEFUSP,
101: i_NEG, i_NEGX, i_CLR, i_NOT,
102: i_ABCD, i_SBCD, i_NBCD,
103: i_SWAP,
104: i_PEA, i_LEA,
105: i_EXT, i_EXG,
106: i_TST, i_TAS, i_CHK,
107: i_TRAPV, i_TRAP, i_RESET, i_NOP, i_STOP,
108: i_LINK, i_UNLK,
109: i_RTE, i_RTS, i_RTR,
110: i_JSR, i_JMP, i_Scc, i_SF, i_DBcc, i_DBRA, i_Bcc, i_BSR,
111: i_DIVU, i_DIVS,
112: i_ASR, i_LSR, i_ROXR, i_ROR,
113: i_ASL, i_LSL, i_ROXL, i_ROL,
114: i_LINE10, i_LINE15
115: } t_mnemonic;
116:
117: typedef struct {
118: uint16 mask; /* mask of bits that are static */
119: uint16 bits; /* bit values corresponding to bits in mask */
120: t_mnemonic mnemonic; /* instruction mnemonic */
121: struct {
122: int priv:1; /* instruction is privileged if set */
123: int endblk:1; /* instruction ends a block if set */
124: int imm_notzero:1; /* immediate data cannot be 0 (if applicable) */
125: int used:5; /* bitmap of XNZVC flags inspected */
126: int set:5; /* bitmap of XNZVC flags altered */
127: } flags;
128: t_size size; /* size of instruction */
129: t_datatype stype; /* type of source */
130: t_datatype dtype; /* type of destination */
131: unsigned int sbitpos:4; /* bit pos of imm data or reg part of EA */
132: unsigned int dbitpos:4; /* reg part of EA */
133: unsigned int immvalue; /* if stype is ImmS this is the value */
134: unsigned int cc; /* condition code if mnemonic is Scc/Dbcc/Bcc */
135: unsigned int funcnum; /* function number for this instruction */
136: unsigned int wordlen; /* length in words of this instruction */
137: unsigned int clocks; /* number of external clock periods */
138: } t_iib; /* instruction information block */
139:
140: #define IIB_FLAG_X 1<<0
141: #define IIB_FLAG_N 1<<1
142: #define IIB_FLAG_Z 1<<2
143: #define IIB_FLAG_V 1<<3
144: #define IIB_FLAG_C 1<<4
145:
146: typedef struct {
147: t_mnemonic mnemonic;
148: const char *name;
149: } t_mnemonic_table;
150:
151: extern t_mnemonic_table mnemonic_table[];
152:
153: extern char *condition_table[];
154:
155: typedef union {
156: struct {
157: #ifndef BYTES_HIGHFIRST
158: unsigned int c:1;
159: unsigned int v:1;
160: unsigned int z:1;
161: unsigned int n:1;
162: unsigned int x:1;
163: unsigned int :3;
164: unsigned int i0:1;
165: unsigned int i1:1;
166: unsigned int i2:1;
167: unsigned int :2;
168: unsigned int s:1;
169: unsigned int :1;
170: unsigned int t:1;
171: #else
172: unsigned int t:1;
173: unsigned int :1;
174: unsigned int s:1;
175: unsigned int :2;
176: unsigned int i2:1;
177: unsigned int i1:1;
178: unsigned int i0:1;
179: unsigned int :3;
180: unsigned int x:1;
181: unsigned int n:1;
182: unsigned int z:1;
183: unsigned int v:1;
184: unsigned int c:1;
185: #endif
186: } sr_struct;
187: uint16 sr_int;
188: } t_sr;
189:
190: typedef struct {
191: uint32 pc;
192: uint32 sp;
193: t_sr sr;
194: uint16 stop;
195: uint32 regs[16];
1.1.1.2 root 196: uint16 pending;
1.1 root 197: } t_regs;
198:
199: #define SR_CFLAG (1<<0)
200: #define SR_VFLAG (1<<1)
201: #define SR_ZFLAG (1<<2)
202: #define SR_NFLAG (1<<3)
203: #define SR_XFLAG (1<<4)
204: #define SR_SFLAG (1<<13)
205: #define SR_TFLAG (1<<15)
206:
1.1.1.5 ! root 207: /* Steve Snake / Charles MacDonald (msgid <[email protected]>) -
! 208: * TAS on Genesis 1 and 2 (but not 3) do not write back with TAS */
! 209: #define BROKEN_TAS
! 210:
1.1.1.4 root 211: #ifdef NOLOGGING
212: # define LOG_DEBUG3(x) /* */
213: # define LOG_DEBUG2(x) /* */
214: # define LOG_DEBUG1(x) /* */
215: # define LOG_USER(x) /* */
216: # define LOG_VERBOSE(x) /* */
217: # define LOG_NORMAL(x) /* */
218: # define LOG_CRITICAL(x) /* */
219: # define LOG_REQUEST(x) /* */
220: #else
221: # define LOG_DEBUG3(x) /* ui_log_debug3 ## x */
222: # define LOG_DEBUG2(x) /* ui_log_debug2 ## x */
223: # define LOG_DEBUG1(x) /* ui_log_debug1 ## x */
224: # define LOG_USER(x) ui_log_user ## x
225: # define LOG_VERBOSE(x) ui_log_verbose ## x
226: # define LOG_NORMAL(x) ui_log_normal ## x
227: # define LOG_CRITICAL(x) ui_log_critical ## x
228: # define LOG_REQUEST(x) ui_log_request ## x
229: #endif
1.1 root 230:
231: typedef struct {
232: uint8 *sprite; /* pointer to sprite data or NULL for end of list */
233: uint8 hplot; /* number of cells to plot */
234: sint16 hpos, vpos; /* -128 upwards, top left position */
235: uint16 hsize, vsize; /* 1 to 4 for 8 to 32 pixels */
236: sint16 hmax, vmax; /* bottom right position */
237: } t_spriteinfo;
238:
239: typedef enum {
240: pt_unknown, pt_game, pt_education
241: } t_prodtype;
242:
243: typedef struct {
244: char console[17];
245: char copyright[17];
246: char name_domestic[49];
247: char name_overseas[49];
248: t_prodtype prodtype;
249: char version[13];
250: uint16 checksum;
251: char memo[29];
252: char country[17];
253: uint8 flag_japan; /* old style JUE flags */
254: uint8 flag_usa;
255: uint8 flag_europe;
256: uint8 hardware; /* new style 4-bit bitmap, 0=japan,2=us,3=europe */
257: } t_cartinfo;
258:
1.1.1.4 root 259: typedef enum {
260: musiclog_off, musiclog_gym, musiclog_gnm
261: } t_musiclog;
262:
1.1 root 263: extern t_cartinfo gen_cartinfo;
1.1.1.4 root 264:
265: extern unsigned int gen_quit;
266: extern unsigned int gen_debugmode;
267: extern unsigned int gen_loglevel;
268: extern unsigned int gen_autodetect;
1.1.1.5 ! root 269: extern unsigned int gen_modifiedrom;
1.1.1.4 root 270: extern t_musiclog gen_musiclog;
271: extern char gen_leafname[];
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