kopia lustrzana https://github.com/micropython/micropython
64 wiersze
906 B
Python
64 wiersze
906 B
Python
@micropython.asm_thumb
|
|
def asm_sum_words(r0, r1):
|
|
|
|
# r0 = len
|
|
# r1 = ptr
|
|
# r2 = sum
|
|
# r3 = dummy
|
|
mov(r2, 0)
|
|
|
|
b(loop_entry)
|
|
|
|
label(loop1)
|
|
ldr(r3, [r1, 0])
|
|
add(r2, r2, r3)
|
|
|
|
add(r1, r1, 4)
|
|
sub(r0, r0, 1)
|
|
|
|
label(loop_entry)
|
|
cmp(r0, 0)
|
|
bgt(loop1)
|
|
|
|
mov(r0, r2)
|
|
|
|
|
|
@micropython.asm_thumb
|
|
def asm_sum_bytes(r0, r1):
|
|
|
|
# r0 = len
|
|
# r1 = ptr
|
|
# r2 = sum
|
|
# r3 = dummy
|
|
mov(r2, 0)
|
|
|
|
b(loop_entry)
|
|
|
|
label(loop1)
|
|
ldrb(r3, [r1, 0])
|
|
add(r2, r2, r3)
|
|
|
|
add(r1, r1, 1)
|
|
sub(r0, r0, 1)
|
|
|
|
label(loop_entry)
|
|
cmp(r0, 0)
|
|
bgt(loop1)
|
|
|
|
mov(r0, r2)
|
|
|
|
|
|
import uarray as array
|
|
|
|
b = array.array("l", (100, 200, 300, 400))
|
|
n = asm_sum_words(len(b), b)
|
|
print(b, n)
|
|
|
|
b = array.array("b", (10, 20, 30, 40, 50, 60, 70, 80))
|
|
n = asm_sum_bytes(len(b), b)
|
|
print(b, n)
|
|
|
|
b = b"\x01\x02\x03\x04"
|
|
n = asm_sum_bytes(len(b), b)
|
|
print(b, n)
|