dma65.c File Reference

#include "xemu/emutools.h"
#include "dma65.h"
#include "xemu/cpu65.h"
#include "rom.h"

Include dependency graph for dma65.c:

Go to the source code of this file.

Macros
#define	DEBUGDMA(...)   DEBUG(__VA_ARGS__)
#define	DMA_ADDR_INTEGER_PART(p)   ((p)>>8)
#define	DMA_SOURCE_SKIP_RATE   ((int)(dma_registers[0x08] | (dma_registers[0x09] << 8)))
#define	DMA_TARGET_SKIP_RATE   ((int)(dma_registers[0x0A] | (dma_registers[0x0B] << 8)))
#define	DMA_ADDR_FRACT_PART(p)   ((p) & 0xFF)
#define	DMA_ADDRESSING(channel)   ((DMA_ADDR_INTEGER_PART(channel.addr) & channel.mask) + channel.base)
#define	MEM_LIST_MASK   0xFFFF
#define	MEM_ADDR_MASK   0xFFFFF
#define	DMA_READ_SOURCE()   (XEMU_UNLIKELY(source.is_io) ? DMA_SOURCE_IOREADER_FUNC(DMA_ADDRESSING(source)) : DMA_SOURCE_MEMREADER_FUNC(DMA_ADDRESSING(source)))
#define	DMA_READ_TARGET()   (XEMU_UNLIKELY(target.is_io) ? DMA_TARGET_IOREADER_FUNC(DMA_ADDRESSING(target)) : DMA_TARGET_MEMREADER_FUNC(DMA_ADDRESSING(target)))
#define	DMA_READ_LIST_NEXT_BYTE()   DMA_LIST_READER_FUNC(((list_addr++) & MEM_LIST_MASK) | list_base)

Enumerations
enum	dma_op_types {   COPY_OP, MIX_OP, SWAP_OP, FILL_OP,   COPY_OP, MIX_OP, SWAP_OP, FILL_OP }

Functions
void	dma_write_reg (int addr, Uint8 data)
int	dma_is_in_use (void)
int	dma_update (void)
int	dma_update_multi_steps (int do_for_cycles)
void	dma_init_set_rev (unsigned int revision, const Uint8 *rom)
void	dma_init (unsigned int revision)
void	dma_reset (void)
Uint8	dma_read_reg (int addr)

Variables
Uint8	dma_status
Uint8	dma_registers [16]
int	dma_chip_revision
int	dma_chip_revision_is_dynamic
int	dma_chip_revision_override
int	dma_chip_initial_revision

Macro Definition Documentation

DEBUGDMA

#define DEBUGDMA

(

...

)

DEBUG(__VA_ARGS__)

Definition at line 51 of file dma65.c.

DMA_ADDR_FRACT_PART

#define DMA_ADDR_FRACT_PART

(

p

)

((p) & 0xFF)

Definition at line 113 of file dma65.c.

DMA_ADDR_INTEGER_PART

#define DMA_ADDR_INTEGER_PART

(

p

)

((p)>>8)

Definition at line 110 of file dma65.c.

DMA_ADDRESSING

#define DMA_ADDRESSING

(

channel

)

((DMA_ADDR_INTEGER_PART(channel.addr) & channel.mask) + channel.base)

Definition at line 115 of file dma65.c.

DMA_READ_LIST_NEXT_BYTE

#define DMA_READ_LIST_NEXT_BYTE

(

)

DMA_LIST_READER_FUNC(((list_addr++) & MEM_LIST_MASK) | list_base)

Definition at line 183 of file dma65.c.

DMA_READ_SOURCE

#define DMA_READ_SOURCE

(

)

(XEMU_UNLIKELY(source.is_io) ? DMA_SOURCE_IOREADER_FUNC(DMA_ADDRESSING(source)) : DMA_SOURCE_MEMREADER_FUNC(DMA_ADDRESSING(source)))

Definition at line 140 of file dma65.c.

DMA_READ_TARGET

#define DMA_READ_TARGET

(

)

(XEMU_UNLIKELY(target.is_io) ? DMA_TARGET_IOREADER_FUNC(DMA_ADDRESSING(target)) : DMA_TARGET_MEMREADER_FUNC(DMA_ADDRESSING(target)))

Definition at line 141 of file dma65.c.

DMA_SOURCE_SKIP_RATE

#define DMA_SOURCE_SKIP_RATE   ((int)(dma_registers[0x08] | (dma_registers[0x09] << 8)))

Definition at line 111 of file dma65.c.

DMA_TARGET_SKIP_RATE

#define DMA_TARGET_SKIP_RATE   ((int)(dma_registers[0x0A] | (dma_registers[0x0B] << 8)))

Definition at line 112 of file dma65.c.

MEM_ADDR_MASK

#define MEM_ADDR_MASK   0xFFFFF

Definition at line 137 of file dma65.c.

MEM_LIST_MASK

#define MEM_LIST_MASK   0xFFFF

Definition at line 136 of file dma65.c.

Enumeration Type Documentation

dma_op_types

enum dma_op_types

Enumerator
COPY_OP
MIX_OP
SWAP_OP
FILL_OP
COPY_OP
MIX_OP
SWAP_OP
FILL_OP

Definition at line 68 of file dma65.c.

Function Documentation

dma_init()

void dma_init

(

unsigned int

revision

)

Definition at line 647 of file dma65.c.

dma_init_set_rev()

void dma_init_set_rev	(	unsigned int	revision,
		const Uint8 *	rom
	)

Definition at line 620 of file dma65.c.

dma_is_in_use()

int dma_is_in_use

(

void

)

Definition at line 303 of file dma65.c.

Here is the caller graph for this function:

dma_read_reg()

Uint8 dma_read_reg

(

int

addr

)

Definition at line 693 of file dma65.c.

dma_reset()

void dma_reset

(

void

)

Definition at line 674 of file dma65.c.

dma_update()

int dma_update

(

void

)

Definition at line 315 of file dma65.c.

dma_update_multi_steps()

int dma_update_multi_steps

(

int

do_for_cycles

)

Definition at line 610 of file dma65.c.

dma_write_reg()

void dma_write_reg	(	int	addr,
		Uint8	data
	)

Definition at line 244 of file dma65.c.

Variable Documentation

addr

int addr

Definition at line 119 of file dma65.c.

base

int base

Definition at line 120 of file dma65.c.

col_counter

int col_counter

Definition at line 128 of file dma65.c.

col_limit

int col_limit

Definition at line 128 of file dma65.c.

dma_chip_initial_revision

int dma_chip_initial_revision

Definition at line 59 of file dma65.c.

dma_chip_revision

int dma_chip_revision

Definition at line 56 of file dma65.c.

dma_chip_revision_is_dynamic

int dma_chip_revision_is_dynamic

Definition at line 57 of file dma65.c.

dma_chip_revision_override

int dma_chip_revision_override

Definition at line 58 of file dma65.c.

dma_registers

Uint8 dma_registers[16]

Definition at line 55 of file dma65.c.

dma_status

Uint8 dma_status

Definition at line 54 of file dma65.c.

enabled

int enabled

Definition at line 90 of file dma65.c.

enhanced_dma

int enhanced_dma

Definition at line 91 of file dma65.c.

is_io

int is_io

Definition at line 124 of file dma65.c.

is_modulo

int is_modulo

Definition at line 123 of file dma65.c.

mask

int mask

Definition at line 121 of file dma65.c.

row_counter

int row_counter

Definition at line 128 of file dma65.c.

row_limit

int row_limit

Definition at line 128 of file dma65.c.

saved_revision

int saved_revision

Definition at line 93 of file dma65.c.

step

int step

Definition at line 122 of file dma65.c.

used

int used

Definition at line 128 of file dma65.c.

value

int value

Definition at line 128 of file dma65.c.