diff options
Diffstat (limited to 'input/identity.asm')
| -rw-r--r-- | input/identity.asm | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/input/identity.asm b/input/identity.asm new file mode 100644 index 0000000..e6d9260 --- /dev/null +++ b/input/identity.asm @@ -0,0 +1,59 @@ +;;;;;;;; +;;; performs a matrix multiply on the 4x4 square matrices +;;; m1 and m2, +;;; the result of which is placed into +;;; r, +;;; in this case, the result is the identity +;;; does not use designated vector instructions + +.data + m1 01 00 -1 00 00 01 00 -1 00 00 01 00 00 00 00 01 + m2 01 00 01 00 00 01 00 01 00 00 01 00 00 00 00 01 + r 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +.text + addi $8 $0 0x4 ; dimensions + addi $9 $0 0x0 ; tracks the rows + addi $10 $0 0x0 ; tracks the columns + jrl ROWCOND + +ROW: + jrl COLCOND +COL: + addi $11 $0 0x0 ; tracks the element being added + addi $12 $0 0x0 ; the accumulated result to place into $9,$10 + + mul $7 $9 $8 ; setup the index into m1 + addi $5 $7 m1 + + addi $6 $0 m2 ; setup the index into m2 + add $6 $6 $10 + + jrl ELECOND +ELE: + add $5 $5 $11 ; increment m1 + + mul $13 $11 $8 ; increment m2 + add $6 $6 $13 + + load $13 0($5) ; retrieve and accumulate + load $14 0($6) + add $12 $14 $13 + + addi $11 $11 0x1 +ELECOND: + cmp $8 $11 + bgt ELE + addi $10 $10 0x1 +COLCOND: + cmp $8 $10 + bgt COL + + add $7 $7 $10 ; setup the index into r + addi $7 $7 r + + store $12 0($7) + + addi $9 $9 0x1 +ROWCOND: + cmp $8 $9 + bgt ROW |