mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-24 10:41:35 +01:00
c8c4f89854
Previously had wonky line pointer in asm_main. New interface simpler and more portable. Add tests for ASSERT_EQ_ and family in arm and aarch64, previously on x86_64. ASSERT_EQ_ and family in ARM can now either take =123, =addr or var, before this the = was added on macros so var was not possible. Define the main function directly in assembly, the C driver was useless.
42 lines
1003 B
ArmAsm
42 lines
1003 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-vcvta-instruction */
|
|
|
|
#include <lkmc.h>
|
|
|
|
LKMC_PROLOGUE
|
|
/* SIMD positive. */
|
|
.data
|
|
vcvta_positive_0: .float 1.25, 2.5, 3.75, 4.0
|
|
vcvta_positive_expect: .word 1, 3, 4, 4
|
|
.bss
|
|
vcvta_positive_result: .skip 0x10
|
|
.text
|
|
ldr r0, =vcvta_positive_0
|
|
vld1.32 {q0}, [r0]
|
|
vcvta.u32.f32 q1, q0
|
|
ldr r0, =vcvta_positive_result
|
|
vst1.32 {q1}, [r0]
|
|
LKMC_ASSERT_MEMCMP(
|
|
vcvta_positive_result,
|
|
vcvta_positive_expect,
|
|
=0x10
|
|
)
|
|
|
|
/* SIMD negative. */
|
|
.data
|
|
vcvta_negative_0: .float -1.25, -2.5, -3.75, -4.0
|
|
vcvta_negative_expect: .word -1, -3, -4, -4
|
|
.bss
|
|
vcvta_negative_result: .skip 0x10
|
|
.text
|
|
ldr r0, =vcvta_negative_0
|
|
vld1.32 {q0}, [r0]
|
|
vcvta.s32.f32 q1, q0
|
|
ldr r0, =vcvta_negative_result
|
|
vst1.32 {q1}, [r0]
|
|
LKMC_ASSERT_MEMCMP(
|
|
vcvta_negative_result,
|
|
vcvta_negative_expect,
|
|
=0x10
|
|
)
|
|
LKMC_EPILOGUE
|