cpu:atomic

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--- cpu:atomic [2019/07/07 20:09] – [ARMv8.0A] oga
+++ cpu:atomic [2019/07/07 21:08] (現在) – [x64 (relaxed/release/seq_cst)] oga
@@ 行 152: / 行 152: @@
 	ldrex	r2, [r4]
 	cmp	r2, #0
-	beq	.LBB0_18
+	beq	.LBB0_44
 	clrex
-	b	.LBB0_19
+	b	.LBB0_45
-.LBB0_18:
+.LBB0_44:
 	dmb	ish
 	mov	r0, #3
 	strex	r1, r0, [r4]
 	cmp	r1, #0
-	～
+	beq	.LBB0_53
+.LBB0_45:
 </code>
@@ 行 206: / 行 207: @@
 <code asm>
+.LBB0_47:
 	ldrex	r2, [r4]
 	cmp	r2, #3
-	bne	.LBB0_24
+	bne	.LBB0_50
-	mov	r0, #0
-	dmb	ish
-.LBB0_22:
 	strex	r1, r0, [r4]
 	cmp	r1, #0
-	beq	.LBB0_25
+	bne	.LBB0_47
-	ldrex	r2, [r4]
+	dmb	ish
-	cmp	r2, #3
+	mov	r1, #1
-	beq	.LBB0_22
+	b	.LBB0_51
-.LBB0_24:
+.LBB0_50:
 	clrex
 	mov	r1, #0
 	dmb	ish
-	b	.LBB0_26
+.LBB0_51:
-.LBB0_25:
-	dmb	ish
-	mov	r1, #1
-.LBB0_26:
 </code>
@@ 行 257: / 行 252: @@
 ===== load =====
+==== x64 (relaxed/acquire/consume/seq_cst) ====
+<code asm>
+	movl	(%rbx), %esi
+</code>
 ==== ARMv7A (relaxed) ====
@@ 行 290: / 行 293: @@
 ----
 ===== store =====
+==== x64 (relaxed/release) ====
+<code asm>
+	movl	%ebp, (%rbx)
+</code>
+==== x64 (seq_cst) ====
+<code asm>
+	xchgl	%ebp, (%rbx)
+</code>
 ==== ARMv7A (relaxed) ====

cpu/atomic.1562497747.txt.gz · 最終更新: 2019/07/07 20:09 by oga