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ARM SMMULR instruction
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VishalPatil VishalPatil
over 7 years ago
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VishalPatil VishalPatil
over 7 years ago
Note: This was originally posted on 15th July 2009 at
http://forums.arm.com
Hi,
Thanks for your reply.
Resolution: SMULL RTemp, Rd, Rm, Rs
ADDS RTemp, RTemp, #0X80000000
ADDCS Rd, Rd, #0X00000001
Because of ADDS RTemp, RTemp, #0X80000000
ADDCS Rd, Rd, #0X00000001
Output in Rd differ by 1.
This is some thing wrong while we are try to rounded.
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Peter Harris
over 7 years ago
Note: This was originally posted on 15th July 2009 at
http://forums.arm.com
What input values are causing the error?
What are you running the code on?
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Peter Harris
over 7 years ago
Note: This was originally posted on 15th July 2009 at
http://forums.arm.com
Sure - I understand your code - I'm just trying to reproduce the error you are seeing =)
What values of Rm and Rs cause the fault you are seeing?
What processor are you running on?
Are you running on hardware or a model?
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