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thw_mod5_no3

# thw_mod5_no3 - Fall 2011 2[14 points Complete the missing...

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ECE 270 Introduction to Digital System Design Fall 2011 TakeHomaWork for Module 5 – Due November 7, 2011 1. [36 points] Determine how the condition codes (C, Z, N, V) are set for 2-bit Radix subtraction. Show all work. 1 0 - 0 1 _____ C = __ Z = __ N = __ V = __ 1 0 - 1 0 ______ C = __ Z = __ N = __ V = __ 1 0 - 1 1 _____ C = __ Z = __ N = __ V = __ 0 1 - 0 1 _____ C = __ Z = __ N = __ V = __ 0 1 - 1 0 _____ C = __ Z = __ N = __ V = __ 0 1 - 1 1 _____ C = __ Z = __ N = __ V = __ 0 0 - 0 1 _____ C = __ Z = __ N = __ V = __ 0 0 - 1 0 _____ C = __ Z = __ N = __ V = __ 0 0 - 1 1 _____ C = __ Z = __ N = __ V = _ _ Name: __________________________________________ Class No: __ __ __ __ - __ Signature: ______________________________________ Score: _______ / 50 Your Class No. is the last four digits of your PUID followed by the first character of your last name.

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Unformatted text preview: Fall 2011 2. [14 points] Complete the missing entries in the “condition code generation chart,” below, and derive the function for “A greater than or equal to B” (“AGEB”) in its simplest (minimal) form. Show all work. A 1 A (A) B 1 B (B) ? C Z N V 0 0 0 0 0 0 (A) = (B) 0 1 0 0 0 0 0 0 1 +1 (A) < (B) 0 0 0 1 0 -2 (A) > (B) 1 0 1 1 0 0 0 1 1 -1 (A) > (B) 1 0 0 0 0 1 +1 0 0 0 (A) > (B) 0 0 0 0 0 1 +1 0 1 +1 (A) = (B) 0 1 0 0 0 1 +1 1 0 -2 (A) > (B) 1 0 1 1 0 1 +1 1 1 -1 (A) > (B) 1 0 1 1 1 0 -2 0 0 0 (A) < (B) 1 0 -2 0 1 +1 (A) < (B) 1 0 -2 1 0 -2 (A) = (B) 0 1 0 0 1 0 -2 1 1 -1 (A) < (B) 1 1 -1 0 0 0 (A) < (B) 1 1 -1 0 1 +1 (A) < (B) 1 1 -1 1 0 -2 (A) > (B) 0 0 0 0 1 1 -1 1 1 -1 (A) = (B) 0 1 0 0 C ′ C 0 4 12 8 V ′ N ′ 1 5 13 9 3 7 15 11 V N 2 6 14 10 V ′ Z ′ Z Z ′...
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thw_mod5_no3 - Fall 2011 2[14 points Complete the missing...

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