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Who need fake funny assembly instructions when PowerPC has real funny assembly instructions like EIEIO - Enforce In-Order Execution of I/O? [0] [0] https://www
by ingve 2y ago
Who need fake funny assembly instructions when PowerPC has real funny assembly instructions like EIEIO - Enforce In-Order Execution of I/O? [0]
[0] https://www.ibm.com/docs/en/aix/7.3?topic=set-eieio-enforce-in-order-execution-io-instruction https://www.ibm.com/docs/en/aix/7.3?topic=set-eieio-enforce-...
- brontitall 2y agoWhile we are on funny real instructions, I remember years ago thinking that the VAX MOVTUC instruction was the hilarious pinnacle of CISC instructions http://odl.sysworks.biz/disk$axpdocdec011/opsys/vmsos73/vmsos73/4515/4515pro_026.html#index_x_956 http://odl.sysworks.biz/disk$axpdocdec011/opsys/vmsos73/vmso...
- Neywiny 2y agoI think there are basically single instruction strlen in an x86 extension now? This is why people say that even assembly isn't the lowest level. Who knows how many uOPs these things are. Not sure of VAX architecture if there even are uOPs, but on a modern CPU, it's crazy how abstracted everything is.