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Altera_Forum's avatar
Altera_Forum
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21 years ago

Can I accelerate?

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/wink.gif hello,everyone! My NiosII&#39;s C code is: int main() { unsigned count; while(1) { count=IORD_ALTER...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Thanx.

I did this test again under release build mode,then read and write use 10 clocks.the assembly language code is:

.file "count_pio.c"

.section .text

.align 2

.global main

.type main, @function

main:

movhi r3, %hiadj(67584)

addi r3, r3, %lo(67584)

.L2:

ldwio r2, 0(r3)

stwio r2, 0(r3)

br .L2

.size main, .-main

.ident "GCC: (GNU) 3.4.1 (Altera Nios II 1.1 b137)"