runtime/src/z_Linux_asm.S

39 //	mov    $100, %rax
40 //	delay  %rax
650 //	return:	%rax
654         movq      %rsi, %rax	// "d"
656         xaddq     %rax,(%rdi)
739 // return:	%rax
743         movq      %rsi, %rax	// "d"
746         xchgq     %rax,(%rdi)
771         andq      $1, %rax      // sign extend previous instruction for return value
796         andq      $1, %rax      // sign extend previous instruction for return value
821         andq      $1, %rax      // sign extend previous instruction for return value
841         movq      %rsi, %rax    // "cv"
844         sete      %al           // if %rax == (%rdi) set %al = 1 else set %al = 0
845         andq      $1, %rax      // sign extend previous instruction for return value
933         movq      %rsi, %rax    // "cv"
986 	movd	%xmm0, %rax	// load "data" to rax
989 	xchgq  %rax, (%rdi)
991 	movd	%rax, %xmm0	// load old value into return register
1034 //	%rax:	used all over the place
1064 	movq	%rcx, %rax	// Stack alignment calculation begins; argc -> %rax
1066 	subq	$4, %rax	// subtract four args passed in registers to pkfn
1071 	movq	%rbx, %rax	// zero negative value in %rax <- max(0, argc-4)
1074 	cmovsq	%rbx, %rax	// zero negative value in %rax <- max(0, argc-4)
1077 	movq	%rax, %rsi	// save max(0, argc-4) -> %rsi for later
1078 	shlq 	$3, %rax	// Number of bytes used on stack: max(0, argc-4)*8
1081 	subq 	%rax, %rdx	// %rsp-(max(0,argc-4)*8) -> %rdx --
1083 	movq 	%rdx, %rax	// Save to %rax
1085 	andq 	$0xFFFFFFFFFFFFFF80, %rax  // mask off lower 7 bits (128 bytes align)
1086 	subq 	%rax, %rdx	// Amount to subtract from %rsp
1091 	movq	%rcx, %rax	// argc -> %rax
1125 	cmpq	$4, %rax	// argc >= 4?
1132 	cmpq	$3, %rax	// argc >= 3?
1139 	cmpq	$2, %rax	// argc >= 2?
1146 	cmpq	$1, %rax	// argc >= 1?
1153 	cmpq	$4, %rax	// argc >= 4?
1156 	cmpq	$3, %rax	// argc >= 3?
1159 	cmpq	$2, %rax	// argc >= 2?
1162 	cmpq	$1, %rax	// argc >= 1?
1167 	movq	$1, %rax	// move 1 into return register;
1184 	orq     %rdx, %rax