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|
;;;;;;;;
;;; performs a matrix multiply the matrices m1 and m2:
;;; 9 4 3 1 0 4 2 2 65 21 55 72 40
;;; 1 4 2 8 3 1 9 4 49 18 18 50 22
;;; 9 4 7 8 3 5 6 2 = 97 33 75 96 48
;;; 6 6 6 102 36 60 102 48
;;; the result of which is placed into r
;;; does not use designated vector instructions
.data
m1 9 4 3 1 4 2 9 4 7 6 6 6
m2 1 0 4 2 2 8 3 1 9 4 8 3 5 6 2
n 3 ; # of columns of m1, rows of m2
m 4 ; # of rows of m1
p 5 ; # of columns of m2
r 0 ; a matrix of size n,p
.text
addi $5 $2 0x0 ; establish frame pointer
jmp MAIN
MAIN:
push $5 ; function preamble
addi $5 $2 0x0
subi $2 $2 0x0
addi $7 $0 0x0 ; tracks M
jrl MCOND
MITER:
addi $8 $0 0x0 ; tracks P
jrl PCOND
PITER:
addi $9 $0 0x0 ; tracks N
addi $10 $0 0x0 ; tracks accumulated result
load $6 n($0) ; index m1
mul $11 $6 $7
addi $11 $11 m1
addi $12 $8 m2 ; index m2
jrl NCOND
NITER:
add $13 $11 $9 ; increment m1
load $6 p($0)
mul $14 $9 $6 ; increment m2
add $14 $14 $12
load $6 0($13)
load $15 0($14)
mul $6 $6 $15
add $10 $10 $6
addi $9 $9 0x1 ; increment element being added
NCOND:
load $6 n($0)
cmp $6 $9
bgt NITER
load $6 p($0) ; store result
mul $6 $6 $7
add $6 $6 $8
store $10 r($6)
addi $8 $8 0x1 ; increment columns in m2
PCOND:
load $6 p($0)
cmp $6 $8
bgt PITER
addi $7 $7 0x1 ; increment rows in m1
MCOND:
load $6 m($0)
cmp $6 $7
bgt MITER
nop
nop
nop
nop
nop
nop
|
