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v0.5.1
v0.5.1
https://github.com/python/cpython
Revision ea9c8caa13977561787bf2de430f18c2031dde0d authored by Miss Islington (bot) on 06 July 2019, 06:38:30 UTC, committed by GitHub on 06 July 2019, 06:38:30 UTC
Also fix a name misspelling. (cherry picked from commit 45bc61b97178b27ae05bd3eb95481bf0325795bb) Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
1 parent cf294c4
Tip revision: ea9c8caa13977561787bf2de430f18c2031dde0d authored by Miss Islington (bot) on 06 July 2019, 06:38:30 UTC
bpo-37149: Replace dead link for online Tkinter reference (GH-14616)
bpo-37149: Replace dead link for online Tkinter reference (GH-14616)
Tip revision: ea9c8ca
wordcode_helpers.h
/* This file contains code shared by the compiler and the peephole
optimizer.
*/
#ifdef WORDS_BIGENDIAN
# define PACKOPARG(opcode, oparg) ((_Py_CODEUNIT)(((opcode) << 8) | (oparg)))
#else
# define PACKOPARG(opcode, oparg) ((_Py_CODEUNIT)(((oparg) << 8) | (opcode)))
#endif
/* Minimum number of code units necessary to encode instruction with
EXTENDED_ARGs */
static int
instrsize(unsigned int oparg)
{
return oparg <= 0xff ? 1 :
oparg <= 0xffff ? 2 :
oparg <= 0xffffff ? 3 :
4;
}
/* Spits out op/oparg pair using ilen bytes. codestr should be pointed at the
desired location of the first EXTENDED_ARG */
static void
write_op_arg(_Py_CODEUNIT *codestr, unsigned char opcode,
unsigned int oparg, int ilen)
{
switch (ilen) {
case 4:
*codestr++ = PACKOPARG(EXTENDED_ARG, (oparg >> 24) & 0xff);
/* fall through */
case 3:
*codestr++ = PACKOPARG(EXTENDED_ARG, (oparg >> 16) & 0xff);
/* fall through */
case 2:
*codestr++ = PACKOPARG(EXTENDED_ARG, (oparg >> 8) & 0xff);
/* fall through */
case 1:
*codestr++ = PACKOPARG(opcode, oparg & 0xff);
break;
default:
Py_UNREACHABLE();
}
}
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