cpu65.c File Reference

#include "xemu/emutools_basicdefs.h"
#include "xemu/cpu65.h"

Include dependency graph for cpu65.c:

Go to the source code of this file.

Macros
#define	SP_HI   0x100
#define	ZP_HI   0
#define	CPU_TYPE   "65C02"
#define	ZERO_REG   0
#define	A_OP(op, dat)   CPU65.a = CPU65.a op dat
#define	TIMINGS_65CE02_   {7,5,2,2,4,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,4,3,4,4,1,4,1,1,5,4,5,4,5,5,7,7,3,3,4,4,3,2,1,1,4,4,5,4,2,5,5,3,3,3,4,4,1,4,1,1,4,4,5,4,5,5,2,2,4,3,4,4,3,2,1,1,3,4,5,4,2,5,5,3,4,3,4,4,2,4,3,1,4,4,5,4,4,5,7,5,3,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,3,3,4,4,2,4,3,1,5,4,5,4,2,5,6,3,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,2,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,6,3,3,4,4,1,2,1,7,4,4,5,4,2,5,5,3,3,3,4,4,1,4,3,3,4,4,5,4,2,5,6,6,3,3,4,4,1,2,1,7,4,4,5,4,2,5,5,3,5,3,4,4,1,4,3,3,7,4,5,4}
#define	TIMINGS_65CE02   {7,5,2,2,4,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,4,3,4,4,1,4,1,1,5,4,5,4,2,5,7,7,4,3,4,4,3,2,1,1,5,4,4,4,2,5,5,3,4,3,4,4,1,4,1,1,5,4,5,4,5,5,2,2,4,3,4,4,3,2,1,1,3,4,5,4,2,5,5,3,4,3,4,4,1,4,3,3,4,4,5,4,4,5,7,5,3,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,3,3,4,4,2,4,3,1,5,4,5,4,2,5,6,3,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,2,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,6,3,3,4,4,1,2,1,7,4,4,5,4,2,5,5,3,3,3,4,4,1,4,3,3,4,4,5,4,2,5,6,6,3,3,4,4,1,2,1,6,4,4,5,4,2,5,5,3,5,3,4,4,1,4,3,3,7,4,5,4}
#define	TIMINGS_6502C65   {7,6,2,8,3,3,5,5,3,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,7,8,3,3,5,5,4,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,2,8,3,3,5,5,3,2,2,2,3,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,7,8,3,3,5,5,4,2,2,2,5,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,6,5,6,4,4,4,4,2,5,2,5,5,5,5,5,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,5,5,5,4,4,4,4,2,4,2,4,4,4,4,4,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7}
#define	TIMINGS_6502MOS   {7,6,0,8,3,3,5,5,3,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,0,8,3,3,5,5,4,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,0,8,3,3,5,5,3,2,2,2,3,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,0,8,3,3,5,5,4,2,2,2,5,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,6,0,6,4,4,4,4,2,5,2,5,5,5,5,5,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,5,0,5,4,4,4,4,2,4,2,4,4,4,4,4,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7}
#define	TIMINGS_65C02   {7,6,2,2,5,3,5,5,3,2,2,2,6,4,6,2,2,5,5,2,5,4,6,5,2,4,2,2,6,4,7,2,6,6,2,2,3,3,5,5,4,2,2,2,4,4,6,2,2,5,5,2,4,4,6,5,2,4,2,2,4,4,7,2,6,6,2,2,3,3,5,5,3,2,2,2,3,4,6,2,2,5,5,2,4,4,6,5,2,4,3,2,2,4,7,2,6,6,2,2,3,3,5,5,4,2,2,2,5,4,6,2,2,5,5,2,4,4,6,5,2,4,4,2,6,4,7,2,3,6,2,2,3,3,3,5,2,2,2,2,4,4,4,2,2,6,5,2,4,4,4,5,2,5,2,2,4,5,5,2,2,6,2,2,3,3,3,5,2,2,2,2,4,4,4,2,2,5,5,2,4,4,4,5,2,4,2,2,4,4,4,2,2,6,2,2,3,3,5,5,2,2,2,2,4,4,6,2,2,5,5,2,4,4,6,5,2,4,3,2,2,4,7,2,2,6,2,2,3,3,5,5,2,2,2,2,4,4,6,2,2,5,5,2,4,4,6,5,2,4,4,2,2,4,7,2}
#define	VALUE_TO_PF_ZERO(a)   ((a) ? 0 : CPU65_PF_Z)
#define	ASSIGN_PF_Z_BY_COND(a)   do { if (a) CPU65.pf_nz |= CPU65_PF_Z; else CPU65.pf_nz &= ~CPU65_PF_Z; } while(0)
#define	ASSIGN_PF_N_BY_COND(a)   do { if (a) CPU65.pf_nz |= CPU65_PF_N; else CPU65.pf_nz &= ~CPU65_PF_N; } while(0)
#define	writeFlatAddressedByte(d)   cpu65_write_linear_opcode_callback(d)
#define	readFlatAddressedByte()   cpu65_read_linear_opcode_callback()
#define	writeFlatAddressedQuadWithZ(d)   cpu65_write_linear_long_opcode_callback(CPU65.z, d)
#define	readFlatAddressedQuadWithZ()   cpu65_read_linear_long_opcode_callback(CPU65.z)
#define	writeFlatAddressedQuadWithoutZ(d)   cpu65_write_linear_long_opcode_callback(0, d)
#define	readFlatAddressedQuadWithoutZ()   cpu65_read_linear_long_opcode_callback(0)
#define	writeByteTwice(a, od, nd)   cpu65_write_rmw_callback(a,od,nd)
#define	writeByte(a, d)   cpu65_write_callback(a,d)
#define	readByte(a)   cpu65_read_callback(a)
#define	IS_CPU_NMOS   0
#define	NMOS_JAM_OPCODE()
#define	HAS_NMOS_BUG_JMP_INDIRECT   0
#define	HAS_NMOS_BUG_NO_PFD_RES_ON_INT   0
#define	HAS_NMOS_BUG_BCD   0
#define	push(data)   writeByte(((Uint8)(CPU65.s--)) | SP_HI, data)
#define	pop()   readByte(((Uint8)(++CPU65.s)) | SP_HI)
#define	_imm()   (CPU65.pc++)
#define	_absx()   ((Uint16)(_abs() + CPU65.x))
#define	_absy()   ((Uint16)(_abs() + CPU65.y))
#define	_absi()   readWord(_abs())
#define	_absxi()   readWord(_absx())
#define	_zp()   (readByte(CPU65.pc++) | ZP_HI)
#define	_zpx()   (((readByte(CPU65.pc++) + CPU65.x) & 0xFF) | ZP_HI)
#define	_zpy()   (((readByte(CPU65.pc++) + CPU65.y) & 0xFF) | ZP_HI)

Functions
void	cpu65_set_pf (const Uint8 st)
Uint8	cpu65_get_pf (void)
void	cpu65_reset (void)
int	cpu65_step (void)

Variables
struct cpu65_st	CPU65

Macro Definition Documentation

_absi

#define _absi

(

)

readWord(_abs())

Definition at line 421 of file cpu65.c.

_absx

#define _absx

(

)

((Uint16)(_abs() + CPU65.x))

Definition at line 419 of file cpu65.c.

_absxi

#define _absxi

(

)

readWord(_absx())

Definition at line 422 of file cpu65.c.

_absy

#define _absy

(

)

((Uint16)(_abs() + CPU65.y))

Definition at line 420 of file cpu65.c.

_imm

#define _imm

(

)

(CPU65.pc++)

Definition at line 414 of file cpu65.c.

_zp

#define _zp

(

)

(readByte(CPU65.pc++) | ZP_HI)

Definition at line 423 of file cpu65.c.

_zpx

#define _zpx

(

)

(((readByte(CPU65.pc++) + CPU65.x) & 0xFF) | ZP_HI)

Definition at line 447 of file cpu65.c.

_zpy

#define _zpy

(

)

(((readByte(CPU65.pc++) + CPU65.y) & 0xFF) | ZP_HI)

Definition at line 448 of file cpu65.c.

A_OP

#define A_OP	(		op,
			dat
	)		CPU65.a = CPU65.a op dat

Definition at line 79 of file cpu65.c.

ASSIGN_PF_N_BY_COND

#define ASSIGN_PF_N_BY_COND

(

a

)

do { if (a) CPU65.pf_nz |= CPU65_PF_N; else CPU65.pf_nz &= ~CPU65_PF_N; } while(0)

Definition at line 189 of file cpu65.c.

ASSIGN_PF_Z_BY_COND

#define ASSIGN_PF_Z_BY_COND

(

a

)

do { if (a) CPU65.pf_nz |= CPU65_PF_Z; else CPU65.pf_nz &= ~CPU65_PF_Z; } while(0)

Definition at line 188 of file cpu65.c.

CPU_TYPE

#define CPU_TYPE   "65C02"

Definition at line 74 of file cpu65.c.

HAS_NMOS_BUG_BCD

#define HAS_NMOS_BUG_BCD   0

Definition at line 240 of file cpu65.c.

HAS_NMOS_BUG_JMP_INDIRECT

#define HAS_NMOS_BUG_JMP_INDIRECT   0

Definition at line 238 of file cpu65.c.

HAS_NMOS_BUG_NO_PFD_RES_ON_INT

#define HAS_NMOS_BUG_NO_PFD_RES_ON_INT   0

Definition at line 239 of file cpu65.c.

IS_CPU_NMOS

#define IS_CPU_NMOS   0

Definition at line 236 of file cpu65.c.

NMOS_JAM_OPCODE

#define NMOS_JAM_OPCODE

(

)

Definition at line 237 of file cpu65.c.

pop

#define pop

(

)

readByte(((Uint8)(++CPU65.s)) | SP_HI)

Definition at line 298 of file cpu65.c.

push

#define push

(

data

)

writeByte(((Uint8)(CPU65.s--)) | SP_HI, data)

Definition at line 297 of file cpu65.c.

readByte

#define readByte

(

a

)

cpu65_read_callback(a)

Definition at line 206 of file cpu65.c.

readFlatAddressedByte

#define readFlatAddressedByte

(

)

cpu65_read_linear_opcode_callback()

Definition at line 194 of file cpu65.c.

readFlatAddressedQuadWithoutZ

#define readFlatAddressedQuadWithoutZ

(

)

cpu65_read_linear_long_opcode_callback(0)

Definition at line 199 of file cpu65.c.

readFlatAddressedQuadWithZ

#define readFlatAddressedQuadWithZ

(

)

cpu65_read_linear_long_opcode_callback(CPU65.z)

Definition at line 197 of file cpu65.c.

SP_HI

#define SP_HI   0x100

Definition at line 69 of file cpu65.c.

TIMINGS_6502C65

#define TIMINGS_6502C65   {7,6,2,8,3,3,5,5,3,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,7,8,3,3,5,5,4,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,2,8,3,3,5,5,3,2,2,2,3,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,7,8,3,3,5,5,4,2,2,2,5,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,6,5,6,4,4,4,4,2,5,2,5,5,5,5,5,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,5,5,5,4,4,4,4,2,4,2,4,4,4,4,4,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,5,8,4,4,6,6,2,4,2,7,4,4,7,7}

Definition at line 118 of file cpu65.c.

TIMINGS_6502MOS

#define TIMINGS_6502MOS   {7,6,0,8,3,3,5,5,3,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,0,8,3,3,5,5,4,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,0,8,3,3,5,5,3,2,2,2,3,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,6,6,0,8,3,3,5,5,4,2,2,2,5,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,6,0,6,4,4,4,4,2,5,2,5,5,5,5,5,2,6,2,6,3,3,3,3,2,2,2,2,4,4,4,4,2,5,0,5,4,4,4,4,2,4,2,4,4,4,4,4,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7,2,6,2,8,3,3,5,5,2,2,2,2,4,4,6,6,2,5,0,8,4,4,6,6,2,4,2,7,4,4,7,7}

Definition at line 119 of file cpu65.c.

TIMINGS_65C02

#define TIMINGS_65C02   {7,6,2,2,5,3,5,5,3,2,2,2,6,4,6,2,2,5,5,2,5,4,6,5,2,4,2,2,6,4,7,2,6,6,2,2,3,3,5,5,4,2,2,2,4,4,6,2,2,5,5,2,4,4,6,5,2,4,2,2,4,4,7,2,6,6,2,2,3,3,5,5,3,2,2,2,3,4,6,2,2,5,5,2,4,4,6,5,2,4,3,2,2,4,7,2,6,6,2,2,3,3,5,5,4,2,2,2,5,4,6,2,2,5,5,2,4,4,6,5,2,4,4,2,6,4,7,2,3,6,2,2,3,3,3,5,2,2,2,2,4,4,4,2,2,6,5,2,4,4,4,5,2,5,2,2,4,5,5,2,2,6,2,2,3,3,3,5,2,2,2,2,4,4,4,2,2,5,5,2,4,4,4,5,2,4,2,2,4,4,4,2,2,6,2,2,3,3,5,5,2,2,2,2,4,4,6,2,2,5,5,2,4,4,6,5,2,4,3,2,2,4,7,2,2,6,2,2,3,3,5,5,2,2,2,2,4,4,6,2,2,5,5,2,4,4,6,5,2,4,4,2,2,4,7,2}

Definition at line 120 of file cpu65.c.

TIMINGS_65CE02

#define TIMINGS_65CE02   {7,5,2,2,4,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,4,3,4,4,1,4,1,1,5,4,5,4,2,5,7,7,4,3,4,4,3,2,1,1,5,4,4,4,2,5,5,3,4,3,4,4,1,4,1,1,5,4,5,4,5,5,2,2,4,3,4,4,3,2,1,1,3,4,5,4,2,5,5,3,4,3,4,4,1,4,3,3,4,4,5,4,4,5,7,5,3,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,3,3,4,4,2,4,3,1,5,4,5,4,2,5,6,3,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,2,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,6,3,3,4,4,1,2,1,7,4,4,5,4,2,5,5,3,3,3,4,4,1,4,3,3,4,4,5,4,2,5,6,6,3,3,4,4,1,2,1,6,4,4,5,4,2,5,5,3,5,3,4,4,1,4,3,3,7,4,5,4}

Definition at line 117 of file cpu65.c.

TIMINGS_65CE02_

#define TIMINGS_65CE02_   {7,5,2,2,4,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,4,3,4,4,1,4,1,1,5,4,5,4,5,5,7,7,3,3,4,4,3,2,1,1,4,4,5,4,2,5,5,3,3,3,4,4,1,4,1,1,4,4,5,4,5,5,2,2,4,3,4,4,3,2,1,1,3,4,5,4,2,5,5,3,4,3,4,4,2,4,3,1,4,4,5,4,4,5,7,5,3,3,4,4,3,2,1,1,5,4,5,4,2,5,5,3,3,3,4,4,2,4,3,1,5,4,5,4,2,5,6,3,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,2,3,3,3,4,1,2,1,4,4,4,4,4,2,5,5,3,3,3,3,4,1,4,1,4,4,4,4,4,2,5,2,6,3,3,4,4,1,2,1,7,4,4,5,4,2,5,5,3,3,3,4,4,1,4,3,3,4,4,5,4,2,5,6,6,3,3,4,4,1,2,1,7,4,4,5,4,2,5,5,3,5,3,4,4,1,4,3,3,7,4,5,4}

Definition at line 116 of file cpu65.c.

VALUE_TO_PF_ZERO

#define VALUE_TO_PF_ZERO

(

a

)

((a) ? 0 : CPU65_PF_Z)

Definition at line 181 of file cpu65.c.

writeByte

#define writeByte	(		a,
			d
	)		cpu65_write_callback(a,d)

Definition at line 205 of file cpu65.c.

writeByteTwice

#define writeByteTwice	(		a,
			od,
			nd
	)		cpu65_write_rmw_callback(a,od,nd)

Definition at line 203 of file cpu65.c.

writeFlatAddressedByte

#define writeFlatAddressedByte

(

d

)

cpu65_write_linear_opcode_callback(d)

Definition at line 193 of file cpu65.c.

writeFlatAddressedQuadWithoutZ

#define writeFlatAddressedQuadWithoutZ

(

d

)

cpu65_write_linear_long_opcode_callback(0, d)

Definition at line 198 of file cpu65.c.

writeFlatAddressedQuadWithZ

#define writeFlatAddressedQuadWithZ

(

d

)

cpu65_write_linear_long_opcode_callback(CPU65.z, d)

Definition at line 196 of file cpu65.c.

ZERO_REG

#define ZERO_REG   0

Definition at line 76 of file cpu65.c.

ZP_HI

#define ZP_HI   0

Definition at line 70 of file cpu65.c.

Function Documentation

cpu65_get_pf()

Uint8 cpu65_get_pf

(

void

)

Definition at line 331 of file cpu65.c.

cpu65_reset()

void cpu65_reset

(

void

)

Definition at line 353 of file cpu65.c.

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cpu65_set_pf()

void cpu65_set_pf

(

const Uint8

st

)

Definition at line 313 of file cpu65.c.

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cpu65_step()

int cpu65_step

(

void

)

Definition at line 796 of file cpu65.c.

Variable Documentation

CPU65

struct cpu65_st CPU65

Definition at line 60 of file cpu65.c.