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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi,<br>
<br>
I've had a quick look through MipsDisassembler.cpp and it seems that the disassembler doesn't know anything about 16-bit instructions at the moment. The two main problems are that DecoderTableMicroMips16 (which contains ADDU16_MM) is never used, and the disassembler
always reads the opcode as a 4-byte value.<br>
<br>
Vladimir/Sasa/Jozef/Zoran: I don't know much about the microMIPS encodings at the moment. Do you have the details on distinguishing 16-bit from 32-bit instructions?<br>
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<div style="direction: ltr;" id="divRpF558937"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Jun Koi [junkoi2004@gmail.com]<br>
<b>Sent:</b> 29 October 2014 14:46<br>
<b>To:</b> Daniel Sanders<br>
<b>Cc:</b> llvmdev@cs.uiuc.edu<br>
<b>Subject:</b> Mips's MicroMips ??<br>
</font><br>
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<div>Hi,<br>
<br>
</div>
We have this line in micromips-16-bit-instructions.s<br>
<br>
# CHECK-EB: addu16 $6, $17, $4 # encoding: [0x07,0x42]<br>
<br>
<div>However, when I check this with llvm-mc, like below, I dont get back the assembly.<br>
This is against the latest LLVM code. What is wrong here?<br>
<br>
Thanks,<br>
Jun<br>
<br>
<br>
$ echo "0x07,0x42"|./Release+Asserts/bin/llvm-mc -disassemble -triple=mips -show-encoding -mattr=micromips<br>
.text<br>
<stdin>:1:1: warning: invalid instruction encoding<br>
0x07,0x42<br>
^<br>
<stdin>:1:6: warning: invalid instruction encoding<br>
0x07,0x42<br>
<br>
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