.thumb_func

.type CoOS_InitMainStack,%function

CoOS_InitMainStack:

//Reset MSP to init

ldr r0, =0xE000ED08 //r0 = VTOR Use the VTOR offset register to locate the stack.

ldr r0, [r0] //r0 = *VTOR

ldr r0, [r0] //r0 = *(e_stack) (stack init)

sub r0, #32 //r0 = r0 - 32

msr msp, r0 //MSP = r0

ldr r1, =_ZN4CoOS16InterruptHandlerEv //r1 = &CoOS::ThreadStart

add r1, #2

str r1, [r0, #0x14] // MSP.LR = &CoOS::ThreadStart

str r1, [r0, #0x18] // MSP.Return Addr = &CoOS::ThreadStart

bx lr