On 20/12/15 10:33, Andrew Haley wrote: > On 20/12/15 07:14, Alex Brown wrote: >> I know the code is somewhat weird ;-) >> >> Basically peripheral.e wants the address of a null terminated string >> (not the char value). >> >> My "platform/emulator" will use DMA to extract the string from RAM >> before the next instruction is executed. >> >> The issue is that at the time the address is assigned to peripheral.e >> is seems the values of the text array have not yet been written to the >> stack (or that's what I thing I am seeing). >> >> Making "text" volatile makes it output code that makes sense to me. Ah, I just looked at the code again. For this to be really correct, there has to be some sort of barrier after text is written. Sorry. Andrew.
