4 typedef signed char INT8;
5 typedef signed short INT16;
6 typedef signed int INT32;
7 typedef unsigned int UINT32;
8 typedef unsigned short UINT16;
9 typedef unsigned char UINT8;
12 unsigned int pico32x_read8(unsigned int a);
13 unsigned int pico32x_read16(unsigned int a);
14 unsigned int pico32x_read32(unsigned int a);
15 void pico32x_write8(unsigned int a, unsigned int d);
16 void pico32x_write16(unsigned int a, unsigned int d);
17 void pico32x_write32(unsigned int a, unsigned int d);
19 #define RB pico32x_read8
20 #define RW pico32x_read16
21 #define RL pico32x_read32
22 #define WB pico32x_write8
23 #define WW pico32x_write16
24 #define WL pico32x_write32
26 // some stuff from sh2comn.h
35 #define FLAGS (M|Q|I|S|T)
37 #define Rn ((opcode>>8)&15)
38 #define Rm ((opcode>>4)&15)
42 void sh2_reset(SH2 *sh2)
45 // cpu_irq_callback save_irqcallback;
47 // save_irqcallback = sh2->irq_callback;
48 save_is_slave = sh2->is_slave;
50 memset(sh2, 0, sizeof(SH2));
52 sh2->is_slave = save_is_slave;
53 // sh2->irq_callback = save_irqcallback;
59 sh2->internal_irq_level = -1;
62 /* Execute cycles - returns number of cycles actually run */
63 int sh2_execute(SH2 *sh2_, int cycles)
78 switch (opcode & ( 15 << 12))
80 case 0<<12: op0000(opcode); break;
81 case 1<<12: op0001(opcode); break;
82 case 2<<12: op0010(opcode); break;
83 case 3<<12: op0011(opcode); break;
84 case 4<<12: op0100(opcode); break;
85 case 5<<12: op0101(opcode); break;
86 case 6<<12: op0110(opcode); break;
87 case 7<<12: op0111(opcode); break;
88 case 8<<12: op1000(opcode); break;
89 case 9<<12: op1001(opcode); break;
90 case 10<<12: op1010(opcode); break;
91 case 11<<12: op1011(opcode); break;
92 case 12<<12: op1100(opcode); break;
93 case 13<<12: op1101(opcode); break;
94 case 14<<12: op1110(opcode); break;
95 default: op1111(opcode); break;
98 if (sh2->test_irq && !sh2->delay)
100 // CHECK_PENDING_IRQ("mame_sh2_execute");
105 while (sh2_icount > 0);
107 return cycles - sh2_icount;
110 void sh2_init(SH2 *sh2)
112 memset(sh2, 0, sizeof(*sh2));