compiler optimizations

Hello, 1. What is this different style of value assigning? What is the use? Unsigned char const event_strings[11] = { ~0x3f, ~0x06, ~0x5b, ~0x4f, ~0x66, ~0x6d, ~0x7d, ~0x07, ~0x7f, ~0x6f, ~0x00...
compiler optimizations

Hello, 1. What is this different style of value assigning? What is the use? Unsigned char const event_strings[11] = { ~0x3f, ~0x06, ~0x5b, ~0x4f, ~0x66, ~0x6d, ~0x7d, ~0x07, ~0x7f, ~0x6f, ~0x00...
Compiling libgcc not optimized

Good moorning, I am trying to compile libgcc for arm-none-eabi target from scratch, since I need to compare Floating Point SW emulation on an ARM Cortex-M4 and Risc-V based processors. The problem...
ARM Compiler optimization effects

Hello, I'm using Keil uVision V5.24.2.0 with ARM Compiler V5.06 update 5 (build 528). Initially, compiler optimization level was set to 1. With this level, I found that the address assigned...
Linker vs. Compiler Optimization

There have been a lot of threads dealing with viewing the code from the LX linker (COD file) and comparing it to the compiler output (LST). All of which creates a major dilemma in debugging programs....