Consider the following Atmel AVR Assembly Language code:

SUB R$17,$ R$18$

BREQ L$1$

LDI R$16,0$xff

JMP L$2$ ;JMP is an unconditional jump

LDI R$16,0$x$00$

STS $0$x$2$F$7,$ R$16$

a$.$ What does the BREQ instruction do$?$

b$.$ What effect does the JMP instruction have?

c$.$ Under what circumstances does R$16$ contain the value $000$ when this code is

executed?

d$.$ Under what circumstances does R$16$ contain the value $0$ xFF when this code is

executed?

e$.$ Where $($in which memory location$)$ is R$16$ stored when this code is executed?