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| author | Andrew Waterman <andrew@sifive.com> | 2017-03-13 13:13:09 -0700 |
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| committer | Andrew Waterman <andrew@sifive.com> | 2017-03-13 13:13:09 -0700 |
| commit | 7b7361ae364cb3a7268c3a5abb61b1caac8fa7fe (patch) | |
| tree | 5aa7ea1fb2742322c407170e5dba5ccf6fa2d54b /src/v.tex | |
| parent | 4bba8d8c27f5c02af26bc926123d4a25ffe4f9d0 (diff) | |
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Fix setvl description
Closes #28, thanks @asb.
Diffstat (limited to 'src/v.tex')
| -rw-r--r-- | src/v.tex | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -314,10 +314,10 @@ integer. The {\tt setvl} instruction calculates the value to assign to Similar rules were previously used in Cray-designed machines~\cite{crayx1asm}. \end{commentary} -The {\tt vl} register is updated with the minimum of AVL and -MVL, and this value is also returned as the result of the {\tt setvl} -instruction. Note that unlike a regular {\tt csrrw} instruction, the -value returned is not the original CSR value but the modified value. +The result of this calculation is also returned as the result of the {\tt +setvl} instruction. Note that unlike a regular {\tt csrrw} instruction, the +value written to integer register {\em rd} is not the original CSR value but +the modified value. \begin{commentary} The idea of having implementation-defined vector length dates back |