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Copy pathJacobi.asm
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326 lines (283 loc) · 5.24 KB
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.data
vector_x:
.float 0, 0, 0, 0
vector_x_new:
.float 0.0, 0.0, 0.0, 0.0
vector_b:
.float 6, 25, -11, 15
matrix:
.float 10, -1, 2, 0,
-1, 11, -1, 3,
2, -1, 10, -1,
0, 3, -1, 8
zero_f:
.float 0.0
str_row:
.string "Row "
str_col:
.string ", solving for x"
str_result:
.string ": "
str_iteration:
.string "=== Iteration "
str_iteration_end:
.string " ==="
str_old_x:
.string "Current x values: "
str_new_x:
.string "New x values: "
str_space:
.string " "
str_final:
.string "\n=== FINAL RESULT after 10 iterations ==="
newline:
.string "\n"
.text
.globl main
main:
la s0, matrix
la s1, vector_x
la s2, vector_x_new
la s5, vector_b
li s3, 4
li s7, 0
li s8, 10
iteration_loop:
bge s7, s8, final_result
la a0, str_iteration
li a7, 4
ecall
addi t0, s7, 1
mv a0, t0
li a7, 1
ecall
la a0, str_iteration_end
li a7, 4
ecall
la a0, newline
li a7, 4
ecall
la a0, str_old_x
li a7, 4
ecall
li t0, 0
print_current_loop:
bge t0, s3, print_current_done
mv a0, s1
mv a1, t0
jal get_vec_elem
fmv.s fa0, f0
li a7, 2
ecall
la a0, str_space
li a7, 4
ecall
addi t0, t0, 1
j print_current_loop
print_current_done:
la a0, newline
li a7, 4
ecall
li s6, 0
row_loop:
bge s6, s3, iteration_complete
la a0, str_row
li a7, 4
ecall
mv a0, s6
li a7, 1
ecall
la a0, str_col
li a7, 4
ecall
mv a0, s6
li a7, 1
ecall
la a0, str_result
li a7, 4
ecall
mv a0, s0
mv a1, s1
mv a2, s6
mv a3, s6
mv a4, s3
jal mul_row_vec_skip
fmv.s f6, f0
mv a0, s5
mv a1, s6
jal get_vec_elem
fmv.s f7, f0
mv a0, s0
mv a1, s6
mv a2, s6
mv a3, s3
jal get_element
fmv.s f8, f0
fsub.s f0, f7, f6
fdiv.s f0, f0, f8
mv a0, s2
mv a1, s6
fmv.s fa0, f0
jal set_vec_elem
fmv.s fa0, f0
li a7, 2
ecall
la a0, newline
li a7, 4
ecall
addi s6, s6, 1
j row_loop
iteration_complete:
la a0, str_new_x
li a7, 4
ecall
li t0, 0
print_new_loop:
bge t0, s3, print_new_done
mv a0, s2
mv a1, t0
jal get_vec_elem
fmv.s fa0, f0
li a7, 2
ecall
la a0, str_space
li a7, 4
ecall
addi t0, t0, 1
j print_new_loop
print_new_done:
la a0, newline
li a7, 4
ecall
la a0, newline
li a7, 4
ecall
li t0, 0
copy_loop:
bge t0, s3, copy_done
mv a0, s2
mv a1, t0
jal get_vec_elem
fmv.s f9, f0
mv a0, s1
mv a1, t0
fmv.s fa0, f9
jal set_vec_elem
addi t0, t0, 1
j copy_loop
copy_done:
addi s7, s7, 1
j iteration_loop
final_result:
la a0, str_final
li a7, 4
ecall
la a0, newline
li a7, 4
ecall
li t0, 0
print_final_loop:
bge t0, s3, print_final_done
mv a0, s1
mv a1, t0
jal get_vec_elem
fmv.s fa0, f0
li a7, 2
ecall
la a0, str_space
li a7, 4
ecall
addi t0, t0, 1
j print_final_loop
print_final_done:
la a0, newline
li a7, 4
ecall
done:
li a7, 10
ecall
set_vec_elem:
addi sp, sp, -4
sw t0, 0(sp)
slli t0, a1, 2
add t0, a0, t0
fsw fa0, 0(t0)
lw t0, 0(sp)
addi sp, sp, 4
jr ra
mul_row_vec_skip:
addi sp, sp, -48
sw ra, 44(sp)
sw s0, 40(sp)
sw s1, 36(sp)
sw s2, 32(sp)
sw s3, 28(sp)
sw s4, 24(sp)
sw t0, 20(sp)
sw t1, 16(sp)
mv s0, a0
mv s1, a1
mv s2, a2
mv s3, a3
mv s4, a4
la t1, zero_f
flw f2, 0(t1)
li t0, 0
loop:
bge t0, s4, finish
beq t0, s3, skip_increment
addi sp, sp, -4
sw t0, 0(sp)
mv a0, s0
mv a1, s2
mv a2, t0
mv a3, s4
jal get_element
fmv.s f3, f0
lw t0, 0(sp)
addi sp, sp, 4
addi sp, sp, -4
sw t0, 0(sp)
mv a0, s1
mv a1, t0
jal get_vec_elem
fmv.s f4, f0
lw t0, 0(sp)
addi sp, sp, 4
fmul.s f5, f3, f4
fadd.s f2, f2, f5
skip_increment:
addi t0, t0, 1
j loop
finish:
fmv.s f0, f2
lw ra, 44(sp)
lw s0, 40(sp)
lw s1, 36(sp)
lw s2, 32(sp)
lw s3, 28(sp)
lw s4, 24(sp)
lw t0, 20(sp)
lw t1, 16(sp)
addi sp, sp, 48
jr ra
get_vec_elem:
addi sp, sp, -4
sw t0, 0(sp)
slli t0, a1, 2
add t0, a0, t0
flw f0, 0(t0)
lw t0, 0(sp)
addi sp, sp, 4
jr ra
get_element:
addi sp, sp, -4
sw t0, 0(sp)
mul t0, a1, a3
add t0, t0, a2
slli t0, t0, 2
add t0, a0, t0
flw f0, 0(t0)
lw t0, 0(sp)
addi sp, sp, 4
jr ra