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learnFPGA/FIRMWARE/perf.S
2025-08-02 06:09:31 +03:00

20 lines
225 B
ArmAsm

.section .text
.globl rdcycle
.globl rdinstret
rdcycle:
.L0:
rdcycleh a1
rdcycle a0
rdcycleh t0
bne a1,t0,.L0
ret
rdinstret:
.L1:
rdinstreth a1
rdinstret a0
rdinstreth t0
bne a1,t0,.L1
ret