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inline assembly的example
http://forum.andestech.com/viewtopic.php?f=16&t=585
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Author:  cindy [ Wed Jun 06, 2012 6:15 pm ]
Post subject:  inline assembly的example

例如demo-int裡的檔案ag101_16mb.h,
有幾個example。您可以用asm這個key word來搜尋。


Code:
#define NDS32_SET_BITS(addr, mask) \
__asm__ __volatile__(\
" sethi $r1, hi20(%1) \n\t" \
" ori $r1, $r1, lo12(%1) \n\t" \
" sethi $r2, hi20(%0) \n\t" \
" ori $r2, $r2, lo12(%0) \n\t" \
" lwi $r0, [$r2] \n\t" \
" or $r0, $r0, $r1 \n\t" \
" sw $r0, [$r2] \n\t" \
::"i"(addr),"i"(mask):"$r0", "$r1", "$r2")


Code:
#define NDS32_REG_WAIT4_BIT_ON(addr, mask) \
__asm__ __volatile__(\
" sethi $r1, hi20(%1) \n\t" \
" ori $r1, $r1, lo12(%1) \n\t" \
" sethi $r2, hi20(%0) \n\t" \
" ori $r2, $r2, lo12(%0) \n\t" \
"1: lwi $r0, [$r2] \n\t" \
" and $r0, $r0, $r1 \n\t" \
" beqz $r0, 1b \n\t" \
::"i"(addr),"i"(mask):"$r0", "$r1", "$r2")


Inline assembly的用法,
請參考文件programming guide的19.9. Inline Assembly Programming的說明。

Author:  jonathan [ Fri Dec 08, 2017 3:42 pm ]
Post subject:  Re: inline assembly的example

The AndeSight V3.0.0 programing guide V1.6 is shown on the 19.10 section.
Please refer to the following attached file.
Attachment:
Andes_Programming_Guide_for_ISA_V3_PG010_V1.6.pdf [1.66 MiB]
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