Altera DE2-70 Specifikace stáhnout pdf (Strana 27)

3.5 Running the Application Program:

Having conﬁgured the required hardware in the FPGA device, it is now necessary to create and

execute an application program that performs the desired operation. This can be done by writing

the required program either in the Nios II assembly language or in a high-level language such

as C.

A Nios II assembly-language program that implements the trivial task of light control circuit is

shown as:

.include "nios_macros.s"

.equ Switches, 0x00001800

.equ LEDs, 0x00001810

.global _start

_start:

movia r2, Switches

movia r3, LEDs

loop: ldbio r4, 0(r2)

stbio r4, 0(r3)

br loop

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Altera DE2-70 Specifikace Strana 27