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#1
April 21st, 2008, 12:36 AM
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Assembly - Detecting negative value and adding quotient and remainder
Hi, i have been googleling around the solution for this but dunno how. Following is my problem:
1) I will like to check which 2 integer value is negative and which is not. 2) After doing division, i will like to have the quotient and remainder , together in a floating point unit? By the way i am using MIPS architecture. 10x in advance
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#2
April 21st, 2008, 02:17 PM
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For the first part, it is actually very easy: in the standard two's complement representation, the highest bit is clear for a positive number and set for a negative number. If you AND the value against the mask 0x7fffff, that should isolate the high bit for you to test.
As for the second question, it doesn't make much sense to me; there is no remainder in floating-point division. I am not sure if any MIPS system or simulator supports a floating point modulo. For integer division, the quotient is returned in HI and the remainder in LO.
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