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micropython/tests/cmdline/cmd_verbose.py.exp

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tests: Make cmdline tests more stable by using regex for matching.
2015-03-20 17:25:25 +00:00
File cmdline/cmd_verbose.py, code block '<module>' (descriptor: \.\+, bytecode \.\+ bytes)
Raw bytecode (code_info_size=\\d\+, bytecode_size=\\d\+):
py: Compress first part of bytecode prelude. The start of the bytecode prelude contains 6 numbers telling the amount of stack needed for the Python values and exceptions, and the signature of the function. Prior to this patch these numbers were all encoded one after the other (2x variable unsigned integers, then 4x bytes), but using so many bytes is unnecessary. An entropy analysis of around 150,000 bytecode functions from the CPython standard library showed that the optimal Shannon coding would need about 7.1 bits on average to encode these 6 numbers, compared to the existing 48 bits. This patch attempts to get close to this optimal value by packing the 6 numbers into a single, varible-length unsigned integer via bit-wise interleaving. The interleaving scheme is chosen to minimise the average number of bytes needed, and at the same time keep the scheme simple enough so it can be implemented without too much overhead in code size or speed. The scheme requires about 10.5 bits on average to store the 6 numbers. As a result most functions which originally took 6 bytes to encode these 6 numbers now need only 1 byte (in 80% of cases).
2019-09-16 13:12:59 +01:00
08 \.\+
tests: Make cmdline tests more stable by using regex for matching.
2015-03-20 17:25:25 +00:00
########
tests: Update tests for changes to opcode ordering.
2019-09-02 12:35:17 +01:00
\.\+63
tests: Add ability to test uPy cmdline executable. This allows to test options passed to cmdline executable, as well as the behaviour of the REPL.
2015-03-13 10:58:34 +00:00
arg names:
(N_STATE 2)
(N_EXC_STACK 0)
py: Rework and compress second part of bytecode prelude. This patch compresses the second part of the bytecode prelude which contains the source file name, function name, source-line-number mapping and cell closure information. This part of the prelude now begins with a single varible length unsigned integer which encodes 2 numbers, being the byte-size of the following 2 sections in the header: the "source info section" and the "closure section". After decoding this variable unsigned integer it's possible to skip over one or both of these sections very easily. This scheme saves about 2 bytes for most functions compared to the original format: one in the case that there are no closure cells, and one because padding was eliminated.
2019-09-25 06:45:47 +01:00
bc=0 line=1
tests: Add ability to test uPy cmdline executable. This allows to test options passed to cmdline executable, as well as the behaviour of the REPL.
2015-03-13 10:58:34 +00:00
bc=0 line=3
00 LOAD_NAME print (cache=0)
04 LOAD_CONST_SMALL_INT 1
05 CALL_FUNCTION n=1 nkw=0
07 POP_TOP
08 LOAD_CONST_NONE
09 RETURN_VALUE
tests: Get cmdline verbose tests running again. The showbc function now no longer uses the system printf so works correctly.
2016-09-20 02:33:19 +01:00
1
tests: Make cmdline tests more stable by using regex for matching.
2015-03-20 17:25:25 +00:00
mem: total=\\d\+, current=\\d\+, peak=\\d\+
stack: \\d\+ out of \\d\+
GC: total: \\d\+, used: \\d\+, free: \\d\+
tests: Get cmdline verbose tests running again. The showbc function now no longer uses the system printf so works correctly.
2016-09-20 02:33:19 +01:00
No. of 1-blocks: \\d\+, 2-blocks: \\d\+, max blk sz: \\d\+, max free sz: \\d\+