conditional-execution – Tarik Billa

Why are conditionally executed instructions not present in later ARM instruction sets?

December 22, 2023 by Tarik

General claim is modern systems have better branch predictors and compilers are much more advanced so their cost on instruction encoding space is not justified. This is from ARMv8 Instruction Set Overview The A64 instruction set does not include the concept of predicated or conditional execution. Benchmarking shows that modern branch predictors work well enough … Read more

Last iteration of enhanced for loop in java

November 22, 2022 by Tarik

Another alternative is to append the comma before you append i, just not on the first iteration. (Please don’t use “” + i, by the way – you don’t really want concatenation here, and StringBuilder has a perfectly good append(int) overload.) int[] array = {1, 2, 3…}; StringBuilder builder = new StringBuilder(); for (int i … Read more