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  • Why does FPU performance differ in AArch64 and AArch32 with Cortex-A53?

    Hello experts,


    I have come to having a question.
    VFP Benchmark is a benchmark application which was made by a certain Japanese in order to measure ARM VFP performance especially for ARMv7-A and ARMv8-A.
    The software can be downloaded from the following link…

  • ARMv8 Secure EL1 problem

    Hi, arm experts,

    We want to use ARCH32 mode in secure EL1, I see some descriptions in ARMv8 Arch Reference Manual about Secure EL1 ARCH32 mode as follows:

    One is the VBAR(secure), it is mapped to  VBAR_EL3, the other is SCTLR (secure), it is mapped to …

  • indicator for A core system timer implemented or not

    Hi ARM expert,

        In ARM V7 RM, I saw "This chapter describes the implementation of the ARM Generic Timer as an OPTIONAL extension to an ARMv7-A or ARMv7-R processor implementation.". So, I think it means that a SoC implementation…