cpu/ccpu/ccpu.c

422 static CINEWORD register_PC = 0; /* C-CPU registers; program counter */
423 static CINEWORD register_A = 0;  /* A-Register (accumulator) */
424 static CINEWORD register_B = 0;  /* B-Register (accumulator) */
426 static CINEWORD register_J = 0;  /* J-Register (target address for JMP opcodes) */
428 static CINEWORD FromX = 0;       /* X-Register (start of a vector) */
429 static CINEWORD FromY = 0;       /* Y-Register (start of a vector) */
430 static CINEWORD register_T = 0;  /* T-Register (vector draw length timer) */
431 static CINEWORD flag_C = 0;      /* C-CPU flags; carry. Is word sized, instead
436 static CINEWORD cmp_old = 0;     /* last accumulator value */
437 static CINEWORD cmp_new = 0;     /* new accumulator value */
442 static CINEWORD  ram[256];       /* C-CPU ram (for all pages) */
449 static CINEWORD vgColour = 0;
614 		CINEWORD temp_word = ~FromX & 0x0FFF;  in opOUTWW_A_A()
679 	CINEWORD temp_word = opcode & 0x0F;   /* pick up immediate value */  in opLDAimm_A_AA()
695 	CINEWORD temp_word = opcode & 0x0F;   /* pick up immediate value */  in opLDAimm_B_AA()
772 	CINEWORD temp_word = opcode & 0x0F;     /* get imm value */  in opADDimm_A_AA()
787 	CINEWORD temp_word = opcode & 0x0F;     /* get imm value */  in opADDimm_B_AA()
894 	CINEWORD temp_word = opcode & 0x0F;  in opSUBimm_A_AA()
915 	CINEWORD temp_word = opcode & 0x0F;  in opSUBimm_B_AA()
931 	CINEWORD temp_word = CCPU_FETCH (register_PC++);       /* snag imm value */  in opSUBimmX_A_AA()
947 	CINEWORD temp_word = CCPU_FETCH (register_PC++);       /* snag imm value */  in opSUBimmX_B_AA()
963 	CINEWORD temp_word = opcode & 0x0F;         /* fetch imm value */  in opSUBdir_A_AA()
981 	CINEWORD temp_word;  in opSUBdir_B_AA()
1000 	CINEWORD temp_word;  in opSUBirg_A_AA()
1017 	CINEWORD temp_word;  in opSUBirg_B_AA()
1039 	CINEWORD temp_word;  in opCMPdir_A_AA()
1058 	CINEWORD temp_word;  in opCMPdir_B_AA()
1257 	CINEWORD temp_word = ram[register_I];               /* pick up ram value */  in opMULirg_A_AA()
1315 	CINEWORD temp_word = ram[register_I];  in opMULirg_B_AA()
1347 	CINEWORD temp_word = 0x0BEB;  in opLSRe_A_AA()
1362 	CINEWORD temp_word = 0x0BEB;  in opLSRe_B_AA()
1394 	CINEWORD temp_word = 0x0CEC;  in opLSLe_A_AA()
1411 	CINEWORD temp_word = 0x0CEC;                          /* data register */  in opLSLe_B_AA()
1485 	CINEWORD temp_word = 0x0EEE;  in opASRDe_A_AA()
1486 	CINEWORD temp_word_2;  in opASRDe_A_AA()
1509 	CINEWORD temp_word = 0x0EEE;  in opASRDe_B_AA()
1540 	CINEWORD temp_word = 0x0FEF;  in opLSLDe_A_AA()
1567 	CINEWORD temp_word = 0x0FFF;  in opLSLDf_A_AA()
1589 	CINEWORD temp_word = 0x0FFF;  in opLSLDf_B_AA()
1824 	CINEWORD temp_word = (register_P & 0x07) << 12;  /* rom offset */  in opJPP32_A_B()
1831 	CINEWORD temp_word = (register_P & 0x07) << 12;  /* rom offset */  in opJPP32_B_BB()
1844 	CINEWORD temp_word = (register_P & 0x03) << 12;  /* rom offset */  in opJPP16_A_B()
1851 	CINEWORD temp_word = (register_P & 0x03) << 12;  /* rom offset */  in opJPP16_B_BB()
1869 	CINEWORD temp_word = ((register_P & 0x03) - 1) << 12;  /* rom offset */  in opJPP8_A_B()
1876 	CINEWORD temp_word = ((register_P & 0x03) - 1) << 12;  /* rom offset */  in opJPP8_B_BB()
1952 		CINEWORD temp_word = register_A >> 8;  /* register_A's high bits */  in opLLT_A_AA()
2080 		CINEWORD temp_word;  in opVDR_A_A()