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> and people really were doing custom instructions for interpreting JVM bytecode. Ah yes, ARM Jazelle, and the good ol' ARM926EJ-S... https://en.wikipedia.org
by AceJohnny2 8y ago
> and people really were doing custom instructions for interpreting JVM bytecode.
Ah yes, ARM Jazelle, and the good ol' ARM926EJ-S...
https://en.wikipedia.org/wiki/Jazelle https://en.wikipedia.org/wiki/Jazelle
Did the concept die with ARMv8 (64bit)?
- sigjuice 8y agoI don't see java in the list of features on my Raspberry Pi 3 $ cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 4 (v7l) BogoMIPS : 38.40 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4
- gsnedders 8y agoYes, it's gone in ARMv8.
- monocasa 8y agoIt had been essentially dead for a while even before AArch64. It's slightly obfuscated by the fact that there's a version of Jazelle that's basically a nop mode that'll trap on each bytecode.