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add PICO_DIVIDER_DISABLE_INTERRUPTS flag which makes PICO_DIVIDER disable interrupts around division rather than using co-operative guards to protect nested use (i.e. within IRQ/exception). Use of this flag can simplify porting of RTOSes but with a different performance profile (#372)

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This commit is contained in:
Graham Sanderson
2021-05-04 07:48:07 -05:00
committed by GitHub
parent c979ca591f
commit 6796faf0d5
3 changed files with 226 additions and 0 deletions
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21
test/pico_divider_test/CMakeLists.txt
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@ -12,6 +12,27 @@ if (PICO_ON_DEVICE)
pico_add_extra_outputs(pico_divider_test)
target_compile_definitions(pico_divider_test PRIVATE
PICO_DIVIDER_DISABLE_INTERRUPTS=1
# TURBO
)
# this is a separate test as hardware_explicit above causes it not to be tested at all!
add_library(pico_divider_nesting_test_core INTERFACE)
target_sources(pico_divider_nesting_test_core INTERFACE
pico_divider_nesting_test.c
)
target_link_libraries(pico_divider_nesting_test_core INTERFACE pico_stdlib hardware_dma)
add_executable(pico_divider_nesting_test_with_dirty_check)
target_link_libraries(pico_divider_nesting_test_with_dirty_check pico_divider_nesting_test_core)
pico_set_divider_implementation(pico_divider_nesting_test_with_dirty_check hardware)
pico_add_extra_outputs(pico_divider_nesting_test_with_dirty_check)
add_executable(pico_divider_nesting_test_with_disable_irq)
target_link_libraries(pico_divider_nesting_test_with_disable_irq pico_divider_nesting_test_core)
target_compile_definitions(pico_divider_nesting_test_with_disable_irq PRIVATE
PICO_DIVIDER_DISABLE_INTERRUPTS=1)
pico_set_divider_implementation(pico_divider_nesting_test_with_disable_irq hardware)
pico_add_extra_outputs(pico_divider_nesting_test_with_disable_irq)
endif()