suspect-devices/circuitpython/py, branch v1.6

py/formatfloat: Add ability to format doubles with exponents > 99.

2016-01-29T11:39:12+00:00

For single prec, exponents never get larger than about 37. For double prec, exponents can be larger than 99 and need 3 bytes to format. This patch makes the number of bytes needed configurable. Addresses issue #1772.

py/runtime: mp_stack_ctrl_init() should be called immediately on startup.

2016-01-29T00:13:42+00:00

Calling it from mp_init() is too late for some ports (like Unix), and leads to incomplete stack frame being captured, with following GC issues. So, now each port should call mp_stack_ctrl_init() on its own, ASAP after startup, and taking special precautions so it really was called before stack variables get allocated (because if such variable with a pointer is missed, it may lead to over-collecting (typical symptom is segfaulting)).

py/bc: Update opcode format table now that MP_BC_NOT opcode is gone.

2016-01-28T16:11:41+00:00

MP_BC_NOT was removed and the "not" operation made a proper unary operator, and the opcode format table needs to be updated to reflect this change (but actually the change is only cosmetic).

py/inlineasm: Add ability to specify return type of asm_thumb funcs.

2016-01-27T14:27:10+00:00

Supported return types are: object, bool, int, uint. For example: @micropython.asm_thumb def foo(r0, r1) -> uint: add(r0, r0, r1)

extmod/modurandom: Add some extra random functions.

2016-01-26T15:27:00+00:00

Functions added are: - randint - randrange - choice - random - uniform They are enabled with configuration variable MICROPY_PY_URANDOM_EXTRA_FUNCS, which is disabled by default. It is enabled for unix coverage build and stmhal.

extmod/moduhashlib: Add support for SHA1 (based on axTLS).

2016-01-24T18:55:09+00:00

SHA1 is used in a number of protocols and algorithm originated 5 years ago or so, in other words, it's in "wide use", and only newer protocols use SHA2. The implementation depends on axTLS enabled. TODO: Make separate config option specifically for sha1().

py/modmicropython: Add stack_use, heap_lock and heap_unlock functions.

2016-01-24T09:12:06+00:00

micropython.stack_use() returns an integer being the number of bytes used on the stack. micropython.heap_lock() and heap_unlock() can be used to prevent the memory manager from allocating anything on the heap. Calls to these are allowed to be nested.

py/objgetitemiter: Typo fix in comment.

2016-01-23T21:30:06+00:00

py: Add ustruct.pack_into and unpack_from

2016-01-19T12:25:28+00:00

extmod/modurandom: Add "urandom" module.

2016-01-17T10:13:01+00:00

Seedable and reproducible pseudo-random number generator. Implemented functions are getrandbits(n) (n <= 32) and seed(). The algorithm used is Yasmarang by Ilya Levin: http://www.literatecode.com/yasmarang