mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-09 13:18:15 +00:00
ac60633d65
Authors of this port:
Petr Pavlu setup@dagobah.cz
Ivo Raisr ivosh@ivosh.net
Theo Schlossnagle theo@omniti.com
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15426
69 lines
1.3 KiB
ArmAsm
69 lines
1.3 KiB
ArmAsm
# When trying (and failing) to instrument at the basic block level
|
|
# I thought up a lot of corner-cases in the rep code. This tries
|
|
# to catch some of them
|
|
|
|
# Performance counters give us 8207 insns
|
|
# 11 + 8*1024 + 3 = 8206
|
|
|
|
.globl _start
|
|
_start:
|
|
cld # we want these to happen forward
|
|
|
|
mov $0xfeb1378,%eax # value to store
|
|
|
|
# test back-to-back rep/stosb's
|
|
|
|
mov $1024,%ecx
|
|
mov $buffer1, %edi # set destination
|
|
rep stosb # store 1024 times
|
|
rep stosb # should store 0 times
|
|
rep stosb # should store 0 times
|
|
|
|
|
|
# test stosb where cx is 0
|
|
|
|
xor %ecx,%ecx
|
|
mov $buffer1, %edi # set destination
|
|
rep stosb # should not load at all
|
|
|
|
# test rep inside of a loop
|
|
|
|
mov $1024, %ebx
|
|
rep_loop:
|
|
|
|
mov $1024,%ecx
|
|
mov $buffer1, %edi # set destination
|
|
rep stosb
|
|
|
|
mov $1024,%ecx
|
|
mov $buffer1, %edi # set destination
|
|
rep stosb
|
|
|
|
dec %ebx
|
|
jnz rep_loop
|
|
|
|
|
|
#================================
|
|
# Exit
|
|
#================================
|
|
exit:
|
|
mov $1,%eax
|
|
#if defined(VGO_darwin)
|
|
pushl $0 # we return 0
|
|
int $0x80 # and exit
|
|
#elif defined(VGO_linux)
|
|
xor %ebx,%ebx # we return 0
|
|
int $0x80 # and exit
|
|
#elif defined(VGO_solaris)
|
|
pushl $0 # we return 0
|
|
int $0x91 # and exit
|
|
#else
|
|
# error "Unknown OS"
|
|
#endif
|
|
|
|
|
|
#.bss
|
|
|
|
.lcomm buffer1, 16384
|
|
|