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#include <stdio.h>
/*
long sum(long *start, long count)
start in %rdi, count in %rsi
sum:
irmovq $8,%r8 Constant 8
irmovq $1,%r9 Constant 1
xorq %rax,%rax sum = 0
andq %rsi,%rsi Set cc
jmp test Goto test
loop:
mrmovq (%rdi), %r10 Get *start
xorq %r11, %r11 Constant 0
subq %r10, %r11 -x
cmovg %r11, %r10 x = -x, if -x was positive
addq %r10,%rax Add to sum
addq %r8,%rdi start++
subq %r9,%rsi count--. Set CC
test:
jne loop Stop when 0
ret
*/
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