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Diffstat (limited to 'docs/devel/tcg-ops.rst')
| -rw-r--r-- | docs/devel/tcg-ops.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/devel/tcg-ops.rst b/docs/devel/tcg-ops.rst index 62af390854..8f3b5e91b2 100644 --- a/docs/devel/tcg-ops.rst +++ b/docs/devel/tcg-ops.rst @@ -307,6 +307,16 @@ Arithmetic pass *nh* as a simple sign-extension of *nl*, so the only overflow should be *INT_MIN* / -1. + * - divu2 *q*, *r*, *nl*, *nh*, *d* + + - | *q* = *nh:nl* / *d* (unsigned) + | *r* = *nh:nl* % *d* + | Undefined behaviour if division by zero, or the double-word + numerator divided by the single-word divisor does not fit + within the single-word quotient. The code generator will + pass 0 to *nh* to make a simple zero-extension of *nl*, + so overflow should never occur. + Logical ------- |