mfpemul.h File Reference

---

Detailed Description

MFP-68901 emulator.

Author:

Benjamin Gerard <ben@sashipa.com>

Date:

1999/03/20

Id

mfpemul.h,v 2.0 2003/08/21 04:58:35 benjihan Exp

#include "emu68/struct68.h"

Go to the source code of this file.

Defines
#define	TIMER_A   0
	MFP timer 'A'.
#define	TIMER_B   1
	MFP timer 'B'.
#define	TIMER_C   2
	MFP timer 'C'.
#define	TIMER_D   3
	MFP timer 'D'.
Functions
int	MFP_reset (void)
	MFP reset.
int	MFP_init (void)
	MFP init.
u8	MFP_getTDR (int timer, cycle68_t cycle)
	MFP get Timer Data register.
void	MFP_putTDR (int timer, u8 v, cycle68_t cycle)
	MFP write Timer data register.
void	MFP_putTCR (int timer, u8 v, cycle68_t cycle)
	MFP write Timer control register.
int68_t *	MFP_interrupt (cycle68_t cycle)
	Get MFP pending interruption.
cycle68_t	MFP_nextinterrupt (cycle68_t cycle)
	Get cycle for the next MFP interruption.
void	MFP_subcycle (cycle68_t subcycle)
	Change cycle count base.
Variables
u8	mfp [0x40]
	MFP shadow register array.

---

Function Documentation

u8 MFP_getTDR (  int  timer, cycle68_t  cycle )

MFP get Timer Data register. Parameters: timer  Timer-id (0:A 1:B 2:C 3:D). cycle  Current cycle. Returns: timer data register (TDR) value

void MFP_putTDR (  int  timer, u8  v, cycle68_t  cycle )

MFP write Timer data register. Parameters: timer  Timer-id (0:A 1:B 2:C 3:D). v  New timer data register (TDR) value. cycle  current cycle.

void MFP_putTCR (  int  timer, u8  v, cycle68_t  cycle )

MFP write Timer control register. Parameters: timer  Timer-id (0:A 1:B 2:C 3:D). v  New timer control register (TCR) value. cycle  current cycle.

int68_t* MFP_interrupt (  cycle68_t  cycle  )

Get MFP pending interruption. Parameters: cycle  Current cycle. Returns: interruption info structure. Return values: 0  no pending interruption.

cycle68_t MFP_nextinterrupt (  cycle68_t  cycle  )

Get cycle for the next MFP interruption. Parameters: cycle  Current cycle. Returns: cycle when MFP will interrupt Return values: IO68_NO_INT  no interrupt will occur.

void MFP_subcycle (  cycle68_t  subcycle  )

Change cycle count base. Parameters: subcycle  New base for internal cycle counter.

---