Macros to store constants */ define(a4, 1) define(a3, 4) define(a2, 1) define(a1

Question

Macros to store constants */

define(a4, 1)
define(a3, 4)
define(a2, 1)
define(a1, 7)
define(a0, 30)
define(b1_r, 3)
define(b0_r, -3)

/* Varibles x and y are stored in %l0 and %l1 */

define(x_r, l0)
define(y_r, l1)

.global main
main:
save %sp, -96, %sp
clr %x_r

/*.global loop*/
ba test
mov %b0_r, %x_r !x = -3 /*line42 1st error starts*/
loop: !y = 1x^7 - 4x^4 - 1x^3 + 7x^2 + 30x
mov %x_r, %l0 !moving x_r into reg l0 - l6
mov %x_r, %l1
mov %x_r, %l2
mov %x_r, %l3
mov %x_r, %l4
mov %x_r, %l5
mov %x_r, %l6
mov %a4, %l7 !moving 1 into reg l7
call .mul !multiplying 1x^7
nop
mov %x_r, %i0 !moving x_r into reg i0 - i6
mov %x_r, %i1
mov %x_r, %i2
mov %x_r, %i3
mov %a3, %i4 !moving 4 into reg i4
call .mul !multiplying 4x^4
nop
mov %x_r, %i5 !moving x_r into reg i5 - o0
mov %x_r, %i6
mov %x_r, %i7
mov %a2, %o0 !moving 1 into reg o0
call .mul !multiplying 1x^3
nop
mov %x_r, %o1 !moving x_r into reg o1 - o2
mov %x_r, %o2
mov %a1, %o3 !moving 7 into reg o3
call .mul !multiplying 7x^2
nop
mov %x_r, %o4 !moving x_r into reg o4
mov %a0, %o5 !moving 30 into reg o5
call .mul !multiplying 30x
nop
sub %l0, %i0, %l1 !subtract 1x^7 - 4x^4
sub %l1, %i5, %l2 !l1 - 1x^3
add %l2, %01, %l3 !l2 + 7x^2
add %l3, %o4, %l4 !l3 + 30x
mov %l4, %y_r
add %y_r, 1, %y_r
test:
cmp %y_r, b0_r
bge,a loop
cmp %y_r, b1_r
ble,a loop
mov %y_r, %l0

Explanation / Answer

define(a0, 30)

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