• Register Coloring OPTIMIZATION question
    Hi, everyone: I am using Keil C251 verison4.53d, and the Register Coloring OPTIMIZATION compiler option does take effect indeed, code size decreased when it is used. In my Application, there exist timer...
  • Register Coloring OPTIMIZATION question
    Hi, everyone: I am using Keil C251 verison4.53d, and the Register Coloring OPTIMIZATION compiler option does take effect indeed, code size decreased when it is used. In my Application, there exist timer...
  • A question about code optimization
    Hello all, I am experiencing problems with the following piece of code: lp_R0 = g_tcb[g_running_task].r0_ptr ; // restoring next task settings __asm { MOV R15, lp_R0 MOV R0, [R15] POP R15...
  • A question about code optimization
    Hello all, I am experiencing problems with the following piece of code: lp_R0 = g_tcb[g_running_task].r0_ptr ; // restoring next task settings __asm { MOV R15, lp_R0 MOV R0, [R15] POP R15...
  • question about arm cortex-a9 neon optimization(4x4 matrix mul)
    ======================================= for matrix 4 by 4 multiplication, neon programming is slower than natural code with auto-vectorization option. (Xilinx Zynq 702 EVM board - cortex a9 with gcc complier...