/* */
/* */
/* */
-/* (C) 2001 Ullrich von Bassewitz */
+/* (C) 2001-2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@cc65.org */
OP65_STA,
OP65_STX,
OP65_STY,
+ OP65_STZ,
OP65_TAX,
OP65_TAY,
OP65_TRB,
OP65_TXA,
OP65_TXS,
OP65_TYA,
- OPCODE_COUNT /* Number of opcodes available */
+
+ /* Number of opcodes available */
+ OPCODE_COUNT,
+
+ /* Several other opcode information constants */
+ OP65_FIRST = OP65_ADC,
+ OP65_LAST = OP65_TYA,
+ OP65_COUNT = OP65_LAST - OP65_FIRST + 1
} opc_t;
-/* Addressing modes (bitmapped). */
+/* Addressing modes */
typedef enum {
- AM65_IMP, /* implicit */
- AM65_ACC, /* accumulator */
- AM65_IMM, /* immidiate */
- AM65_ZP, /* zeropage */
- AM65_ZPX, /* zeropage,X */
- AM65_ABS, /* absolute */
+
+ /* Addressing modes of the virtual stack machine */
+ AM_IMP,
+ AM_IMM,
+ AM_STACK,
+ AM_ABS,
+
+ /* 65XX addressing modes */
+ AM65_IMP, /* implicit */
+ AM65_ACC, /* accumulator */
+ AM65_IMM, /* immidiate */
+ AM65_ZP, /* zeropage */
+ AM65_ZPX, /* zeropage,X */
+ AM65_ZPY, /* zeropage,Y */
+ AM65_ABS, /* absolute */
AM65_ABSX, /* absolute,X */
AM65_ABSY, /* absolute,Y */
AM65_ZPX_IND, /* (zeropage,x) */
typedef enum {
BC_CC,
BC_CS,
- BC_EQ,
+ BC_EQ,
BC_MI,
BC_NE,
BC_PL,
} bc_t;
/* Opcode info */
-#define OF_NONE 0x0000U /* No additional information */
-#define OF_UBRA 0x0001U /* Unconditional branch */
-#define OF_CBRA 0x0002U /* Conditional branch */
-#define OF_ZBRA 0x0004U /* Branch on zero flag condition */
-#define OF_FBRA 0x0008U /* Branch on cond set by a load */
-#define OF_LBRA 0x0010U /* Jump/branch is long */
-#define OF_RET 0x0020U /* Return from function */
-#define OF_LOAD 0x0040U /* Register load */
-#define OF_XFR 0x0080U /* Transfer instruction */
-#define OF_CALL 0x0100U /* A subroutine call */
+#define OF_NONE 0x0000U /* No additional information */
+#define OF_UBRA 0x0001U /* Unconditional branch */
+#define OF_CBRA 0x0002U /* Conditional branch */
+#define OF_ZBRA 0x0004U /* Branch on zero flag condition */
+#define OF_FBRA 0x0008U /* Branch on cond set by a load */
+#define OF_LBRA 0x0010U /* Jump/branch is long */
+#define OF_RET 0x0020U /* Return from function */
+#define OF_LOAD 0x0040U /* Register load */
+#define OF_STORE 0x0080U /* Register store */
+#define OF_XFR 0x0100U /* Transfer instruction */
+#define OF_CALL 0x0200U /* A subroutine call */
+#define OF_REG_INCDEC 0x0400U /* A register increment or decrement */
+#define OF_SETF 0x0800U /* Insn will set all load flags (not carry) */
+#define OF_CMP 0x1000U /* A compare A/X/Y instruction */
/* Combined infos */
#define OF_BRA (OF_UBRA | OF_CBRA) /* Operation is a jump/branch */
/* Opcode description */
typedef struct {
opc_t OPC; /* Opcode */
- char Mnemo[8]; /* Mnemonic */
+ char Mnemo[9]; /* Mnemonic */
unsigned char Size; /* Size, 0 = check addressing mode */
- unsigned char Use; /* Registers used by this insn */
- unsigned char Chg; /* Registers changed by this insn */
+ unsigned short Use; /* Registers used by this insn */
+ unsigned short Chg; /* Registers changed by this insn */
unsigned short Info; /* Additional information */
} OPCDesc;
-const OPCDesc* FindOpcode (const char* OPC);
+const OPCDesc* FindOP65 (const char* OPC);
/* Find the given opcode and return the opcode description. If the opcode was
* not found, NULL is returned.
*/