[Vm-dev] VM Maker: VMMaker.oscog-tfel.1862.mcz
commits at source.squeak.org
commits at source.squeak.org
Thu May 19 07:50:39 UTC 2016
Tim Felgentreff uploaded a new version of VMMaker to project VM Maker:
http://source.squeak.org/VMMaker/VMMaker.oscog-tfel.1862.mcz
==================== Summary ====================
Name: VMMaker.oscog-tfel.1862
Author: tfel
Time: 19 May 2016, 9:49:06.672041 am
UUID: ee2580a0-a9df-a945-ab7d-26865d302201
Ancestors: VMMaker.oscog-tfel.1861
Use SmallInteger maxVal and minVal in Integer>>signedIntFromLong for the benefit of VMs that can fit more than 30bit into a signed integer
=============== Diff against VMMaker.oscog-eem.1860 ===============
Item was changed:
----- Method: Integer>>signedIntFromLong (in category '*VMMaker-interpreter simulator') -----
signedIntFromLong
"Self is a signed or unsigned 32-bit integer"
| bits |
+ (self >= SmallInteger minVal and: [self <= SmallInteger maxVal]) ifTrue: "These are known to be SmallIntegers..."
- (self >= -1073741824 and: [self <= 1073741823]) ifTrue: "These are known to be SmallIntegers..."
[^self].
bits := self bitAnd: 16rFFFFFFFF.
(bits digitAt: 4) <= 16r7F ifTrue: [^bits].
^bits - 16r100000000!
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