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;; t=testloop; asm-link "$t.asm" && disas "$t" && taskset -c 3 ocperf.py stat -etask-clock,context-switches,cpu-migrations,page-faults,cycles,instructions,uops_issued.any,uops_executed.thread,lsd.uops ./"$t"

;; nasm -felf64 -Worphan-labels -g -Fdwarf testloop.asm
;; ld -o testloop testloop.o
;; time taskset -c 3 perf stat -etask-clock:u,context-switches,cpu-migrations,page-faults,cycles:u,branches:u,instructions:u,uops_issued.any:u,uops_executed.thread:u,arith.divider_active:u -r2 ./testloop

; or idq.mite_uops

default rel
%ifdef __YASM_VER__
    ;        CPU
;    CPU intelnop
    CPU Conroe AMD
    CPU Skylake AMD
%else
%use smartalign
alignmode p6, 64
%endif

%ifdef IACA_MARKS
%macro  IACA_start 0
     mov ebx, 111
     db 0x64, 0x67, 0x90
%endmacro
%macro  IACA_end 0
     mov ebx, 222
     db 0x64, 0x67, 0x90
%endmacro
%else
%define IACA_start
%define IACA_end
%endif

global _start
_start:

%if 1
    lea        rdi, [buf]
    lea        rsi, [bufsrc]
%endif

vzeroupper
    mov     ebp, 100000000
    xor   edx,edx
    mov   ecx, 1234
    movsd  xmm4, [four]
    movsd  xmm2, [two]
    movsd  xmm9, [nine]

;    xorps   xmm0, xmm0
;    vbroadcastss xmm1, [one]
;    vbroadcastss xmm2, [small_number]

align 64
IACA_start
.loop:

;    sqrtsd  xmm4, xmm2   ; 18.0 cycles
;    sqrtsd  xmm2, xmm4   ; 13.0 cycles
    sqrtsd  xmm2, xmm9   ; 18.0 cycles

dec ebp
    jnz .loop
IACA_end
.end:

;;NASM-only, not YASM:   %if __BITS__ == 32
%ifidn __OUTPUT_FORMAT__, elf32
    mov eax,1
    xor ebx,ebx
    int 0x80     ; sys_exit(0) 32-bit ABI
%else
    xor edi,edi
    mov eax,231   ; __NR_exit_group  from /usr/include/asm/unistd_64.h
    syscall       ; sys_exit_group(0)
%endif

section .rodata
align 16
small_number:   times 4 dd 0.00000001
one:            times 4 dd 1.0
two:            times 2 dq 2.0
four:           times 2 dq 4.0
nine:           times 2 dq 9.0

section .bss
align 4096
buf:    resb 4096*4096

bufsrc:  resb 4096
resb 100