stack.h File Reference

#include <stdbool.h>
#include <stdint.h>
#include "z80.h"

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Functions
__BEGIN_DECLS void	_ret_flag (struct z80 *, uint8_t *, int, bool)
	returns from a call based on state of CPU flag More...
void	_ret (struct z80 *, uint8_t *)
	return from a call More...
void	_pop (word *, struct z80 *, uint8_t *)
	pop a value off the stack into a register More...
void	_call_flag_nn (struct z80 *, uint8_t *, int, bool)
	make a function call based on status of CPU flags More...
void	_call_nn (struct z80 *, uint8_t *)
	calls the function at memory address NN More...
void	_push (word *, struct z80 *, uint8_t *)
	pushes the value of a register to the stack More...
void	_rst (struct z80 *, uint8_t *, uint16_t)
	saves PC to the stack, then sets a new PC More...

Detailed Description

Author

Peter H. Ezetta

Function Documentation

_call_flag_nn()

void _call_flag_nn	(	struct z80 *	cpu,
		uint8_t *	memory,
		int	flag,
		bool	n
	)

make a function call based on status of CPU flags

Parameters

cpu	z80 CPU object
memory	pointer to allocated memory block
flag	CPU flag to check before calling function
n	state of checked flag

_call_nn()

void _call_nn	(	struct z80 *	cpu,
		uint8_t *	memory
	)

calls the function at memory address NN

Parameters

cpu	z80 CPU object
memory	pointer to allocated memory block

_pop()

void _pop	(	word *	reg,
		struct z80 *	cpu,
		uint8_t *	memory
	)

pop a value off the stack into a register

Parameters

reg	register to pop value from stack into
cpu	z80 CPU object
memory	pointer to allocated memory block

_push()

void _push	(	word *	reg,
		struct z80 *	cpu,
		uint8_t *	memory
	)

pushes the value of a register to the stack

Parameters

reg	register to push
cpu	z80 CPU object
memory	pointer to allocated memory

_ret()

void _ret	(	struct z80 *	cpu,
		uint8_t *	memory
	)

return from a call

Parameters

cpu	z80 CPU object
memory	pointer to allocated memory block

_ret_flag()

__BEGIN_DECLS void _ret_flag	(	struct z80 *	cpu,
		uint8_t *	memory,
		int	flag,
		bool	n
	)

returns from a call based on state of CPU flag

Parameters

cpu	z80 CPU object
memory	pointer to allocated memory block
flag	CPU flag to check for condition
n	state of CPU flag

_rst()

void _rst	(	struct z80 *	cpu,
		uint8_t *	memory,
		uint16_t	pc
	)

saves PC to the stack, then sets a new PC

Parameters

cpu	z80 CPU object
memory	pointer to allocated memory
pc	new memory address to place in PC