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tweaks, small updates

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This commit is contained in:
Michael W. Hudson 2005-01-18 15:53:59 +00:00
parent 969f485cba
commit 46e6d92dc1
1 changed files with 9 additions and 9 deletions
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18
Misc/SpecialBuilds.txt
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@ -207,14 +207,14 @@ sys.getcounts()
---------------------------------------------------------------------------
LLTRACE introduced well before 1.0
Compile in support of Low Level TRACE-ing of the main interpreter loop.
Compile in support for Low Level TRACE-ing of the main interpreter loop.
When this preprocessor symbol is defined, before eval_frame
(eval_code2 before 2.2) executes a frame's code it checks the frame's
global namespace for a variable "__lltrace__". If such a variable is
found, mounds of information about what the interpreter is doing are
sprayed to stdout, such as every opcode and opcode argument and values
pushed onto and popped off the value stack.
When this preprocessor symbol is defined, before PyEval_EvalFrame
(eval_frame in 2.3 and 2.2, eval_code2 before that) executes a frame's code
it checks the frame's global namespace for a variable "__lltrace__". If
such a variable is found, mounds of information about what the interpreter
is doing are sprayed to stdout, such as every opcode and opcode argument
and values pushed onto and popped off the value stack.
Not useful very often, but very useful when needed.
@ -245,8 +245,8 @@ that uses GCC (i.e. OS X and linux/ppc).
On the PowerPC the rate at which the time base register is incremented
is not defined by the architecture specification, so you'll need to
find the manual for your specific processor. For the 750CX, 750CXe,
750FX (all sold as the G3) we find:
find the manual for your specific processor. For the 750CX, 750CXe
and 750FX (all sold as the G3) we find:
The time base counter is clocked at a frequency that is
one-fourth that of the bus clock.