lxdream.org :: lxdream/test/sh4/README r225:e5cea6125580

filename	test/sh4/README
changeset	225:e5cea6125580
author	nkeynes
date	Sun Dec 14 07:50:48 2008 +0000 (15 years ago)
permissions	-rw-r--r--
last change	Setup a 'proper' stackframe in translated blocks. This doesn't affect performance noticeably, but does ensure that a) The stack is aligned correctly on OS X with no extra effort, and b) We can't mess up the stack and crash that way anymore. Replace all PUSH/POP instructions (outside of prologue/epilogue) with ESP-rel moves to stack local variables. Finally merge ia32mac and ia32abi together, since they're pretty much the same now anyway (and thereby simplifying maintenance a good deal)

file

annotate

diff

log

raw

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/sh4/README	Sun Dec 14 07:50:48 2008 +0000
     1.3 @@ -0,0 +1,11 @@
     1.4 +SH4 instruction set tests.
     1.5 +Each core instruction has its own set of tests that are assembled into the
     1.6 +main test executable.
     1.7 +
     1.8 +Note: Since each instruction's tests obviously depends on other
     1.9 +instructions, its possible for multiple bugs to cancel each other out.
    1.10 +However the tests are structured as much as possible to prevent this.
    1.11 +
    1.12 +Each test loops repeatedly for a constant number of times (currently 1000)
    1.13 +to a) ensure that dynamic recompilation kicks in and recompiles the block,
    1.14 +and b) allow the code to be timed (to a first approximation anyway).