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| author | Dan Halbert <halbert@halwitz.org> | 2018-02-27 22:03:52 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-02-27 22:03:52 -0500 |
| commit | 568c04e6afa8016062f685b2198c0209f62827f4 (patch) | |
| tree | d07b76119f715add462983b335797adf64b61249 /examples/asmsum.py | |
| parent | 6a2379fd0bfe10017d8abc5c36ef1d470c0d9b27 (diff) | |
| parent | ea633117d01d94e8d56ed94344e4b3e46b4eef03 (diff) | |
Merge pull request #650 from tannewt/merge_2x3.0.0-alpha.2
Merge in commits from 2.x branch.
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) |