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From: | varsha |
Subject: | [avr-gcc-list] how to infer lsl instruction... |
Date: | Wed, 16 Nov 2005 13:00:03 +0530 |
Hello all,
i'm using avr-gcc
(GCC) 3.4.3 compiler and Atmega 16 as a MCU.
for crc calculation i'm using inline assembly
code.
for example..
__asm__
__volatile__
( "lsl r11" "\n\t" "rol r12" "\n\t" "rol r13" "\n\t" "rol r15" ); but compiler doesn't generate lsl
instruction...
it generates something like this..
1514: bb
0c add r11,
r11
1516: cc 1c adc r12, r12 1518: dd 1c adc r13, r13 151a: ff 1c adc r15, r15 so what should do to if i want compiler to generate
lsl instruction.
thank you,
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