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ARM: Fix hard-float lj_vm_trunc() (used by compiled math.modf).

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Mike Pall 2012-08-19 22:37:43 +02:00
parent 1fef2df3e8
commit af2cb02542
1 changed files with 2 additions and 2 deletions
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4
src/vm_arm.dasc
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@ -2210,13 +2210,13 @@ static void build_subroutines(BuildCtx *ctx)
| vcmp.f64 d1, d2 // |x| >= 2^52 or NaN?
| vmrs
|.if "func" == "trunc"
| vadd.f64 d0, d1, d2
| bxpl lr // Return argument unchanged.
| vadd.f64 d0, d1, d2
| vsub.f64 d0, d0, d2 // (|x| + 2^52) - 2^52
| vldr d2, <9 // +1.0
| vcmp.f64 d1, d0 // |x| < result: subtract +1.0
| vmrs
| vsubmi.f64 d0, d1, d2
| vsubmi.f64 d0, d0, d2
| cmp CARG2, #0
| vnegmi.f64 d0, d0 // Merge sign bit back in.
|.else