93 @1:     clz     r0, r1                  // Count zero of high bit  in OS_IrqHandler()
94         bics    r1, r1, r3, LSR r0  in OS_IrqHandler()
98         mov     r1, r3, LSR r0  in OS_IrqHandler()
101         rsbs    r0, r0, #31  in OS_IrqHandler()
108         mov     r0, #0  in OS_IrqHandler()
109 @1:     ands    r2, r1, r3, LSL r0              // Count zero of high bit  in OS_IrqHandler()
110         addeq   r0, r0, #1  in OS_IrqHandler()
119         cmp     r0, #OS_IRQ_TABLE_MAX  in OS_IrqHandler()
123         ldr     r0, [ r1, r0, LSL #2 ]  in OS_IrqHandler()
126         bx      r0      // Set return address for thread rescheduling  in OS_IrqHandler()
156            ldr             r0,  [r12, #OSThread.link.next]  in OS_IrqHandler_ThreadSwitch()
158            mov             r12,  r0  in OS_IrqHandler_ThreadSwitch()
211         ldrneh  r0, [ r1, #OS_THREAD_OFFSET_STATE ] // r0 = t->state  in OS_IrqHandler_ThreadSwitch()
212         cmpne   r0, #OS_THREAD_STATE_READY            in OS_IrqHandler_ThreadSwitch()
229         ldr     r0, [ r12, #OS_THREADINFO_OFFSET_CURRENT ]  in OS_IrqHandler_ThreadSwitch()
230         cmp     r1, r0  in OS_IrqHandler_ThreadSwitch()
237         stmfd   sp!, { r0, r1, r12 }  in OS_IrqHandler_ThreadSwitch()
240         ldmfd   sp!, { r0, r1, r12 }  in OS_IrqHandler_ThreadSwitch()
250         str     r2, [ r0, #OS_THREAD_OFFSET_CONTEXT ]!  // *r0=context:CPSR  in OS_IrqHandler_ThreadSwitch()
254         stmfd   sp!, { r0, r1 }  in OS_IrqHandler_ThreadSwitch()
255         add     r0, r0, #OS_THREAD_OFFSET_CONTEXT  in OS_IrqHandler_ThreadSwitch()
256         add     r0, r0, #OS_CONTEXT_CP_CONTEXT  in OS_IrqHandler_ThreadSwitch()
259         ldmfd   sp!, { r0, r1 }  in OS_IrqHandler_ThreadSwitch()
263         stmib   r0!, { r2,r3 }          // Put R0,R1    // *r0=context:R1  in OS_IrqHandler_ThreadSwitch()
266         stmib   r0, { r2-r14        }^  // Put R2-R14^  // *r0=context:R14  in OS_IrqHandler_ThreadSwitch()
267         add     r0, r0, #0x34           // 0x34 is size of r2-r14(13 resisters)  in OS_IrqHandler_ThreadSwitch()
268         stmib   r0!, { r14           }  // Put R14_irq  // *r0=context:R15+4  in OS_IrqHandler_ThreadSwitch()
272         stmib   r0!, { sp }  in OS_IrqHandler_ThreadSwitch()
279         add     r0, r1, #OS_THREAD_OFFSET_CONTEXT  in OS_IrqHandler_ThreadSwitch()
280         add     r0, r0, #OS_CONTEXT_CP_CONTEXT  in OS_IrqHandler_ThreadSwitch()
299         ldmib   r1, { r0-r14 }^         // Get R0-R14^  // *r1=over written  in OS_IrqHandler_ThreadSwitch()
301         stmda   sp!, { r0-r3,r12,r14 }  // Put R0-R3,R12,LR / *sp=stack:LR  in OS_IrqHandler_ThreadSwitch()