esp-idf/components/esp32/test/test_ahb_arb_asm.S
antti d390449371 add unit tests to esp-idf
rename nvs host test folder, modify .gitlab-ci.yml

remove unit-test-app build

re-format unit test files

remove extra newlines in project.mk

some refactoring for unit test part in project.mk

add build files of unit-test-app in gitignore

add README.md for unit test app

correct headings in README.md

remove files and make minor tweaks in unit test app

update .gitlab-ci.yml to use unit test app

delete unused lines in component_wrapper.mk

delete periph_i2s.h and lcd test

add text floating point in components/esp32/test/Kconfig

correct idf test build paths in .gitlab-ci.yml
2016-11-22 14:45:50 +08:00

52 lines
848 B
ArmAsm

/*
This little bit of code is executed in-place by one CPU, but copied to a different memory region
by the other CPU. Make sure it stays position-independent.
*/
.text
.align 4
.global test_s32c1i_lock
.type test_s32c1i_lock,@function
//Args:
//a2 - lock addr
//a3 - val to lock with
//a4 - val to unlock with
//a5 - addr to increase
test_s32c1i_lock:
entry a1, 64
wsr a4, SCOMPARE1
lockloop:
mov a6, a3
s32c1i a6, a2, 0
bne a4, a6, lockloop
l32i a6, a5, 0
//Give other CPU the time to mess up the inc if the lock somehow malfunctions
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
addi a6, a6, 1
s32i a6, a5, 0
//No need to actually let this loop but hey, a hang indicates an error, right?
wsr a3, SCOMPARE1
unlockloop:
mov a6, a4
s32c1i a6, a2, 0
bne a3, a6, unlockloop
retw