cpu:atomic
差分
このページの2つのバージョン間の差分を表示します。
| 両方とも前のリビジョン前のリビジョン次のリビジョン | 前のリビジョン | ||
| cpu:atomic [2019/07/07 19:29] – oga | cpu:atomic [2019/07/07 21:08] (現在) – [x64 (relaxed/release/seq_cst)] oga | ||
|---|---|---|---|
| 行 152: | 行 152: | ||
| ldrex r2, [r4] | ldrex r2, [r4] | ||
| cmp r2, #0 | cmp r2, #0 | ||
| - | beq .LBB0_18 | + | beq .LBB0_44 |
| clrex | clrex | ||
| - | b .LBB0_19 | + | b .LBB0_45 |
| - | .LBB0_18: | + | .LBB0_44: |
| dmb ish | dmb ish | ||
| mov r0, #3 | mov r0, #3 | ||
| strex r1, r0, [r4] | strex r1, r0, [r4] | ||
| cmp r1, #0 | cmp r1, #0 | ||
| - | ～ | + | beq .LBB0_53 |
| + | .LBB0_45: | ||
| </ | </ | ||
| 行 168: | 行 169: | ||
| <code asm> | <code asm> | ||
| - | stlr wzr, [x19] | ||
| - | ldar w1, [x19] | ||
| - | adrp x0, .L.str.11 | ||
| - | add x0, x0, : | ||
| - | bl printf | ||
| ldaxr w2, [x19] | ldaxr w2, [x19] | ||
| cbz w2, .LBB0_18 | cbz w2, .LBB0_18 | ||
| 行 211: | 行 207: | ||
| <code asm> | <code asm> | ||
| + | .LBB0_47: | ||
| ldrex r2, [r4] | ldrex r2, [r4] | ||
| cmp r2, #3 | cmp r2, #3 | ||
| - | bne .LBB0_24 | + | bne .LBB0_50 |
| - | mov r0, #0 | + | |
| - | dmb ish | + | |
| - | .LBB0_22: | + | |
| strex r1, r0, [r4] | strex r1, r0, [r4] | ||
| cmp r1, #0 | 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 | clrex | ||
| mov r1, #0 | mov r1, #0 | ||
| dmb ish | dmb ish | ||
| - | b .LBB0_26 | + | .LBB0_51: |
| - | .LBB0_25: | + | |
| - | dmb ish | + | |
| - | mov r1, #1 | + | |
| - | .LBB0_26: | + | |
| </ | </ | ||
| 行 262: | 行 252: | ||
| ===== load ===== | ===== load ===== | ||
| + | |||
| + | ==== x64 (relaxed/ | ||
| + | |||
| + | <code asm> | ||
| + | movl (%rbx), | ||
| + | </ | ||
| + | |||
| + | |||
| ==== ARMv7A (relaxed) ==== | ==== ARMv7A (relaxed) ==== | ||
| <code asm> | <code asm> | ||
| - | ldr r0, .LCPI0_1 | + | ldr r0, [r4] |
| </ | </ | ||
| + | ==== ARMv7A (acquire/ | ||
| + | <code asm> | ||
| + | ldr r0, [r4] | ||
| + | dmb ish | ||
| + | </ | ||
| - | ==== ARMv8.xA (seq_cst/acquire) ==== | + | |
| + | ==== ARMv8.xA (relaxed) ==== | ||
| + | |||
| + | <code asm> | ||
| + | ldr w1, [x19] | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== ARMv8.xA (acquire/ | ||
| <code asm> | <code asm> | ||
| ldar w1, [x19] | ldar w1, [x19] | ||
| + | </ | ||
| + | |||
| + | |||
| + | |||
| + | |||
| + | ---- | ||
| + | ===== store ===== | ||
| + | |||
| + | ==== x64 (relaxed/ | ||
| + | |||
| + | <code asm> | ||
| + | movl %ebp, (%rbx) | ||
| + | </ | ||
| + | |||
| + | ==== x64 (seq_cst) ==== | ||
| + | |||
| + | <code asm> | ||
| + | xchgl %ebp, | ||
| + | </ | ||
| + | |||
| + | ==== ARMv7A (relaxed) ==== | ||
| + | |||
| + | <code asm> | ||
| + | str r5, [r4] | ||
| + | </ | ||
| + | |||
| + | ==== ARMv7A (release) ==== | ||
| + | |||
| + | <code asm> | ||
| + | dmb ish | ||
| + | str r5, [r4] | ||
| + | </ | ||
| + | |||
| + | ==== ARMv7A (seq_cst) ==== | ||
| + | |||
| + | <code asm> | ||
| + | dmb ish | ||
| + | str r5, [r4] | ||
| + | dmb ish | ||
| </ | </ | ||
| 行 281: | 行 331: | ||
| <code asm> | <code asm> | ||
| - | ldr w1, [sp, #8] | + | str w20, [x19] |
| </ | </ | ||
| + | ==== ARMv8.xA (release/ | ||
| + | |||
| + | <code asm> | ||
| + | stlr w20, [x19] | ||
| + | </ | ||
cpu/atomic.1562495388.txt.gz · 最終更新: by oga