84 @1:     clz     r0, r1                  // Count zero of high bit  in OS_IrqHandler()
85         bics    r1, r1, r3, LSR r0  in OS_IrqHandler()
89         mov     r1, r3, LSR r0  in OS_IrqHandler()
92         rsbs    r0, r0, #31  in OS_IrqHandler()
99         mov     r0, #0  in OS_IrqHandler()
100 @1:     ands    r2, r1, r3, LSL r0              // Count zero of high bit  in OS_IrqHandler()
101         addeq   r0, r0, #1  in OS_IrqHandler()
110         cmp     r0, #OS_IRQ_TABLE_MAX  in OS_IrqHandler()
114         ldr     r0, [ r1, r0, LSL #2 ]  in OS_IrqHandler()
117         bx      r0  in OS_IrqHandler()
120         bx      r0      // Set return address for thread rescheduling  in OS_IrqHandler()
146         mov     r0, #0  in OS_IrqHandler_ThreadSwitch()
149         strh    r0, [r12]                       // OSi_IrqThreadQueue = 0  in OS_IrqHandler_ThreadSwitch()
152         mov     r0, #0  in OS_IrqHandler_ThreadSwitch()
155         str     r0, [r12]  in OS_IrqHandler_ThreadSwitch()
166         ldr     r0,  [r12, #OS_THREAD_OFFSET_ID]  in OS_IrqHandler_ThreadSwitch()
167         tst     r3,  r1, LSL r0                      // OSi_IrqThreadQueue & (1<<thread->id)  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()
227         ldr     r0, [ r12, #OS_THREADINFO_OFFSET_CURRENT ]  in OS_IrqHandler_ThreadSwitch()
228         cmp     r1, r0  in OS_IrqHandler_ThreadSwitch()
235         stmfd   sp!, { r0, r1, r12 }  in OS_IrqHandler_ThreadSwitch()
238         ldmfd   sp!, { r0, r1, r12 }  in OS_IrqHandler_ThreadSwitch()
248         str     r2, [ r0, #OS_THREAD_OFFSET_CONTEXT ]!  // *r0=context:CPSR  in OS_IrqHandler_ThreadSwitch()
252         stmfd   sp!, { r0, r1 }  in OS_IrqHandler_ThreadSwitch()
253         add     r0, r0, #OS_THREAD_OFFSET_CONTEXT  in OS_IrqHandler_ThreadSwitch()
254         add     r0, r0, #OS_CONTEXT_CP_CONTEXT  in OS_IrqHandler_ThreadSwitch()
257         ldmfd   sp!, { r0, r1 }  in OS_IrqHandler_ThreadSwitch()
261         stmib   r0!, { r2,r3 }          // Put R0,R1    // *r0=context:R1  in OS_IrqHandler_ThreadSwitch()
264         stmib   r0!, { r2-r14        }^ // Put R2-R14^  // *r0=context:R14  in OS_IrqHandler_ThreadSwitch()
265         stmib   r0!, { r14           }  // Put R14_irq  // *r0=context:R15+4  in OS_IrqHandler_ThreadSwitch()
269         stmib   r0!, { sp }  in OS_IrqHandler_ThreadSwitch()
276         add     r0, r1, #OS_THREAD_OFFSET_CONTEXT  in OS_IrqHandler_ThreadSwitch()
277         add     r0, r0, #OS_CONTEXT_CP_CONTEXT  in OS_IrqHandler_ThreadSwitch()
283         ldr     r0, =REG_DIVCNT_ADDR  in OS_IrqHandler_ThreadSwitch()
285         ldr     r1, [ r0 ]  in OS_IrqHandler_ThreadSwitch()
302         ldmib   r1!, { r0-r14 }^        // Get R0-R14^  // *r1=over written  in OS_IrqHandler_ThreadSwitch()
304         stmda   sp!, { r0-r3,r12,r14 }  // Put R0-R3,R12,LR / *sp=stack:LR  in OS_IrqHandler_ThreadSwitch()