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| author | Fred Drake <fdrake@acm.org> | 2000-08-24 00:32:09 (GMT) |
|---|---|---|
| committer | Fred Drake <fdrake@acm.org> | 2000-08-24 00:32:09 (GMT) |
| commit | ef8ace3a6f6cf8396fa92ae62352e8a29ddfca1d (patch) | |
| tree | 799778ef59de6c384636792eb8f1e2ddc1e918a8 /Lib/dis.py | |
| parent | e266e42c9c1d20b24d18def1c4398e75fe1620f0 (diff) | |
| download | cpython-ef8ace3a6f6cf8396fa92ae62352e8a29ddfca1d.zip cpython-ef8ace3a6f6cf8396fa92ae62352e8a29ddfca1d.tar.gz cpython-ef8ace3a6f6cf8396fa92ae62352e8a29ddfca1d.tar.bz2 | |
Charles G. Waldman <cgw@fnal.gov>:
Add the EXTENDED_ARG opcode to the virtual machine, allowing 32-bit
arguments to opcodes instead of being forced to stick to the 16-bit
limit. This is especially useful for machine-generated code, which
can be too long for the SET_LINENO parameter to fit into 16 bits.
This closes the implementation portion of SourceForge patch #100893.
Diffstat (limited to 'Lib/dis.py')
| -rw-r--r-- | Lib/dis.py | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -56,6 +56,7 @@ def disassemble(co, lasti=-1): labels = findlabels(code) n = len(code) i = 0 + extended_arg = 0 while i < n: c = code[i] op = ord(c) @@ -68,8 +69,11 @@ def disassemble(co, lasti=-1): print string.ljust(opname[op], 20), i = i+1 if op >= HAVE_ARGUMENT: - oparg = ord(code[i]) + ord(code[i+1])*256 + oparg = ord(code[i]) + ord(code[i+1])*256 + extended_arg + extended_arg = 0 i = i+2 + if op == EXTENDED_ARG: + extended_arg = oparg*65536L print string.rjust(`oparg`, 5), if op in hasconst: print '(' + `co.co_consts[oparg]` + ')', @@ -258,6 +262,8 @@ def_op('CALL_FUNCTION_VAR', 140) # #args + (#kwargs << 8) def_op('CALL_FUNCTION_KW', 141) # #args + (#kwargs << 8) def_op('CALL_FUNCTION_VAR_KW', 142) # #args + (#kwargs << 8) +def_op('EXTENDED_ARG', 143) +EXTENDED_ARG = 143 def _test(): """Simple test program to disassemble a file.""" |