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A3_2 - branch delay CLessThanB slt \$8 \$12 \$11 if C< B bne...

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## A1_3.asm ## Written by: Colin Swelin 0308676 ## Program to computes the median of three values in memory: ## ## Registers ## \$8 - branch control (in slt, beq, bne, etc. instructions) ## \$9 - base register (loaded initially with 0x1000) ## \$10 - word A ## \$11 - word B ## \$12 - word C ## \$13 - median \$ .text .globl main . main: m lui \$9, 0x1000 # \$9 is base register lh \$10, 0(\$9) # \$10 <-- A or \$8, \$0, \$0 # \$8 <-- 0 # lh \$11, 4(\$9) # \$11 <-- B sll \$0, \$0, \$0 # "load delay" # lh \$12, 8(\$9) # \$12 <-- C sll \$0, \$0, \$0 # "load delay" # slt \$8, \$10, \$11 # if A < B bne \$8, \$0, CLessThanA # branch if != 0 sll \$0, \$0, \$0 # "Branch delay" # CLessThanB2: slt \$8, \$12, \$11 # if C < B beq \$8, \$0, CLessThanA2 # branch if \$8 != \$0 sll \$0, \$0, \$0 # "Branch delay" # or \$13, \$0, \$11 # \$13 <-- B j End # jump to end sll \$0, \$0, \$0

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Unformatted text preview: # branch delay # CLessThanB: slt \$8, \$12, \$11 # if C < B bne \$8, \$0, MedianC # branch if \$8 != \$0 sll \$0, \$0, \$0 # "branch delay" # or \$13, \$0, \$11 # \$13 <-- B j End # jump to end # CLessThanA: slt \$8, \$12, \$10 # if C < A beq \$8, \$0, CLessThanB # branch if \$8 == \$0 # sll \$0, \$0, \$0 # "branch delay" or \$13, \$0, \$10 # \$13 <-- A j End sll \$0, \$0, \$0 s CLessThanA2: slt \$8, \$12, \$10 # if C < A bne \$8, \$0, MedianA # branch if \$8 != \$0 # sll \$0, \$0, \$0 # "branch delay" # or \$13, \$0, \$10 # \$13 <-- A # MedianC: or \$13, \$0, \$12 # \$13 <--- C j End # jump to end sll \$0, \$0, \$0 MedianA: or \$13, \$0, \$10 # \$13 <--- A # End: sh \$13, 12(\$9) s .data A: .word 3 B: .word 5 C: .word 7 D: .word 0 D ## end of file...
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