I have the following:
#define BOOTSTART 0x1F800
#define BL_SERIAL 2
#define BL_SMB 4
So I can say
((void (*)(void))((BOOT_START+BL_SERIAL)/2))();
When I want to jump into my bootloader at the serial download entry point.
In last years WinAvr that code breaks. It generates:
call -1023
In this years compiler it works. It generates
ldi r30,lo8(-1023)
ldi r31,hi8(-1023)
icall
Is there a bug I am missing? A compiler problem? Am I being clueless on
how I specify a hard address to call?
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