circuitpython/tests/inlineasm/asmsum.py

@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)
tests: Add inline assembler test for pyboard. 2014-05-07 13:31:14 -04:00			`@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)`

tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 2020-03-22 22:26:08 -04:00
tests: Add inline assembler test for pyboard. 2014-05-07 13:31:14 -04:00			`@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)`

tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 2020-03-22 22:26:08 -04:00
tests: Rename "array" module to "uarray". 2019-10-22 02:33:23 -04:00			`import uarray as array`
tests: Add inline assembler test for pyboard. 2014-05-07 13:31:14 -04:00
			`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)`
py: Allow to pass in read-only buffers to viper and inline-asm funcs. Fixes #4936. 2019-08-05 02:32:10 -04:00
			`b = b"\x01\x02\x03\x04"`
			`n = asm_sum_bytes(len(b), b)`
			`print(b, n)`