diff options
Diffstat (limited to 'examples/asmsum.py')
| -rw-r--r-- | examples/asmsum.py | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/examples/asmsum.py b/examples/asmsum.py deleted file mode 100644 index 07e71c738..000000000 --- a/examples/asmsum.py +++ /dev/null @@ -1,57 +0,0 @@ -@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 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) |
