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          uC/OSII移植步驟

          作者: 時間:2016-10-08 來源:網(wǎng)絡(luò) 收藏
          ; SAVE TASK'S CONTEXT ONTO TASK'S STACK
          STMFDSP!, {R2}; Push task's Return PC
          STMFDSP!, {LR}; Push task's LR
          STMFDSP!, {R4-R12}; Push task's R12-R4
          LDMFDR1!, {R4-R6}; Move task's R1-R3 from FIQ stack to SVC stack
          STMFDSP!, {R4-R6}
          STMFDSP!, {R0}; Push task's R0onto task's stack
          STMFDSP!, {R3}; Push task's CPSR (i.e. FIQ's SPSR)


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