util.h File Reference

#include <stdint.h>
#include <wonderful.h>

Go to the source code of this file.

Functions
static uint32_t	ws_ptr_to_linear (const void __far *src)
void	ws_portcpy (uint16_t port, const void __far *src, uint16_t count)
	Copy memory data to I/O ports, in order.
	__attribute__ ((no_assume_ds_data, no_assume_ss_data)) void ws_busywait(uint16_t us)
	Busy wait.

Detailed Description

Various utility functions for working with the WonderSwan hardware.

Definition in file util.h.

Function Documentation

__attribute__()

__attribute__

(

(no_assume_ds_data, no_assume_ss_data)

)

Busy wait.

This is not recommended - use only when necessary! Not halting the CPU can lead to higher power consumption. The recommended approach is configuring an interrupt handler and using cpu_halt() - which will then sleep until any interrupt occurs.

Parameters

us	Approximate number of microseconds.

ws_portcpy()

void ws_portcpy	(	uint16_t	port,
		const void __far *	src,
		uint16_t	count )

Copy memory data to I/O ports, in order.

Parameters

port	Destination port.
src	Source pointer.
count	Count, in bytes.

ws_ptr_to_linear()

static uint32_t ws_ptr_to_linear ( const void __far * src )

inlinestatic

Definition at line 33 of file util.h.