日本a√视频在线,久久青青亚洲国产,亚洲一区欧美二区,免费g片在线观看网站

        <style id="k3y6c"><u id="k3y6c"></u></style>
        <s id="k3y6c"></s>
        <mark id="k3y6c"></mark>
          
          

          <mark id="k3y6c"></mark>

          新聞中心

          uC/OSII移植步驟

          作者: 時(shí)間:2016-10-08 來(lái)源:網(wǎng)絡(luò) 收藏
          ; Move task's R1-R3 from IRQ stack to SVC stack
          STMFDSP!, {R4-R6}
          STMFDSP!, {R0}; Push task's R0onto task's stack
          STMFDSP!, {R3}; Push task's CPSR (i.e. IRQ's SPSR)
          LDRR0,OS_IntNesting; OSIntNesting++;
          LDRBR1, [R0]
          ADDR1, R1,#1
          STRBR1, [R0]
          CMPR1, #1; if (OSIntNesting == 1) {
          BNEOS_CPU_IRQ_ISR_1


          關(guān)鍵詞:

          評(píng)論


          相關(guān)推薦

          技術(shù)專(zhuān)區(qū)

          關(guān)閉