ia16.h File Reference

#include <stdbool.h>
#include <stdint.h>

Go to the source code of this file.

Macros
#define	IA16_INT_DIV   0
	Divide error interrupt vector index.
#define	IA16_INT_STEP   1
	Single step/break interrupt vector index.
#define	IA16_INT_NMI   2
	Non-maskable interrupt vector index.
#define	IA16_INT_BREAK   3
	Breakpoint (INT3) interrupt vector index.
#define	IA16_INT_INTO   4
	Overflow (INTO) interrupt vector index.
#define	IA16_INT_BOUNDS   5
	Array bounds (BOUND) interrupt vector index.
#define	IA16_FLAG_CF   0x0001
	Carry CPU flag bit mask.
#define	IA16_FLAG_PF   0x0004
	Parity CPU flag bit mask.
#define	IA16_FLAG_AF   0x0010
	Auxillary carry CPU flag bit mask.
#define	IA16_FLAG_ZF   0x0040
	Zero CPU flag bit mask.
#define	IA16_FLAG_SF   0x0080
	Sign CPU flag bit mask.
#define	IA16_FLAG_TF   0x0100
	Single step CPU flag bit mask.
#define	IA16_FLAG_IF   0x0200
	Interrupt enable CPU flag bit mask.
#define	IA16_FLAG_DF   0x0400
	Direction CPU flag bit mask.
#define	IA16_FLAG_OF   0x0800
	Overflow CPU flag bit mask.
#define	IA16_FLAG_MD   0x8000
	Mode CPU flag bit mask.
#define	FP_SEG(x)
	Retrieve the segment of a far pointer.
#define	FP_OFF(x)
	Retrieve the offset of a far pointer.
#define	MK_FP(seg, ofs)
	Create a far pointer from a segment and offset.
#define	_CS   ia16_get_cs()
#define	_DS   ia16_get_ds()
#define	_ES   ia16_get_es()
#define	_SS   ia16_get_ss()
#define	ia16_get_ds   __builtin_ia16_near_data_segment
	Retrieve the current value of the data segment DS.
#define	ia16_get_ss   __builtin_ia16_ss
	Retrieve the current value of the stack segment SS.
#define	ia16_port_inb(port)
#define	ia16_port_inw(port)
#define	ia16_port_outb(value, port)
#define	ia16_port_outw(value, port)
#define	ia16_critical(...)
	Define a critical code segment in which IRQs are disabled.

Typedefs
typedef void __far(*	ia16_int_handler_t) (void)

Functions
static __segment	ia16_get_cs ()
	Retrieve the current value of the code segment CS.
static __segment	ia16_get_es ()
	Retrieve the current value of the data segment ES.
static uint16_t	ia16_get_sp ()
	Retrieve the current value of the stack pointer SP.
static uint16_t	ia16_get_flags ()
	Retrieve the current value of the CPU flag register.
static void	ia16_set_flags (uint16_t flags)
	Set the CPU flag register to a new value.
static uint8_t	inportb (uint8_t port)
	Read a byte from the given port.
static uint16_t	inportw (uint8_t port)
	Read a word from the given port.
static void	outportb (uint8_t port, uint8_t value)
	Write a byte to the given port.
static void	outportw (uint8_t port, uint16_t value)
	Write a word to the given port.
static void	ia16_halt (void)
	Halt the CPU until an interrupt is received.
static void	ia16_enable_irq (void)
	Enable jumping to interrupt vectors on an interrupt being received by the CPU.
static void	ia16_disable_irq (void)
	Disable jumping to interrupt vectors on an interrupt being received by the CPU.
void	ia16_int_set_handler (uint8_t idx, ia16_int_handler_t handler)
	Register a CPU interrupt handler.

Detailed Description

NEC V30MZ-related CPU defines

Definition in file ia16.h.