Question

Each of these problems gives "before" conditions and an instruction. Give the indicated "after" state of the indicated registers and flags as appropriate.

Before

Instruction executed

Afte

(e)	EDX: 00 00 02 E9	inc edx	EDX
				SF __	ZF__

(f)	EBX: FF FF FF 3B	neg ebx	EBX
				SF __	ZF__

(g)	EAX: 01 23 45 67 ECX: 89 AB CD EF	sub eax, ecx	EAX
				SF __	ZF__	CF__	OF__

(h)	AX: 12 34 CX: 7A BC CF: 1	adc ax, cx	AX
			CX
				SF __	ZF__	CF__	OF__

(i)	EAX: 00 00 00 0A EBX: FF FF FF FC EDX: FF 03 FF 01	imul ebx	EAX
			EDX
				CF __,OF __
(j)	EAX: 00 00 00 10 ECX: FF FF FF FD EDX: FF 03 FF 01	mul ecx	EAX
			EDX
				CF __,OF __
(k)	EAX: 00 00 00 0A EBX: 00 00 00 0C EDX: FF 03 FF 01	imul eax,ebx	EAX
			EDX
				CF __,OF __
(l)	EAX: 00 00 0E AA ECX: 00 00 00 1B EDX: 00 00 00 00	div ecx	EAX
			EDX
(m)	EAX: 00 00 0F CA EBX: 00 00 00 0D EDX: 00 00 00 00	idiv ebx	EAX
			EDX

Answer 1

e)
EDX - 00 00 02 E9
instruction - inc edx
EDX - 00 00 02 EA

SF - 0
ZF - 0

f)
EDX - FF FF FF 3B
instruction - neg ebx
EDX - 00 00 00 C5

SF - 0
ZF - 0

g)
EAX - 01 23 45 67
ECX - 89 AB CD EF
instruction - sub eax, ecx
EAX - 88 88 88 88

CF - 1
OF - 1
SF - 1
ZF - 0

h)
AX - 12 34
CX - 7A BC
CF - 1
instruction - adc ax, cx
AX - 8C F1
CX - 7A BC

CF - 0
OF - 0
SF - 1
ZF - 0

i)
EAX - 00 00 00 0A
ECX - FF FF FF FC
EDX - FF 03 FF 01
instruction - imul ebx
EAX - FF FF FF D8
EDX - 00 00 00 09

CF - 0
OF - 1

j)
EAX - 00 00 00 10
ECX - FF FF FF FD
EDX - FF 03 FF 01
instruction - mul ecx
EAX - FF FF FF D0
EDX - 00 00 00 0F

CF - 0
OF - 0

k)
EAX - 00 00 00 0A
ECX - 00 00 00 0C
EDX - FF 03 FF 01
instruction - imul ebx
EAX - 00 00 00 78
EDX - 00 00 00 00

CF - 0
OF - 0