ucb-bar / ucb-bar/berkeley-hardfloat
Mult for Mantissa
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- Dominant language
- Scala
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- 393
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Description
I look into MulAddRecFN.scala which is seemed that body of float mult-add (out = A*B + C).
The flow is indeed as follows;
in -> preMul -> postMul -> out
- preMul
- extract sign, significant, mantissa by rawFloatFromRecFN().
- Significant of C alignment
- output
- postMul
- Addition with C (line #206)
- Normalize for result
- Rounding for result
I could not find multiplication for mantissa part of A and B operands, where actually does it?
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Read MulAddRecFN.scala, starting with the preMul and postMul flow described in the issue and the addition at line 206. Trace the mantissa path for operands A and B to determine where multiplication occurs; done means identifying that operation in the existing flow and documenting the relevant location.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100