| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465 |
- # thumb_blx_in_range.s
- #
- # Test THUMB/THUMB-2 blx instructions just within the branch range limits.
- # Because bit 1 of the branch target comes from the branch instruction
- # address, the branch range from PC (branch instruction address + 4) is
- # acutally -((1<<22) + 2) to ((1<<22) - 4) for THUMB and -((1<<24) + 2) to
- # ((1<<24) - 4) from THUMB2.
- .syntax unified
- .section .text.pre,"x"
- # Add padding so that target is just in branch range.
- .space 8
- .align 2
- .global _backward_target
- .code 32
- .type _backword_target, %function
- _backward_target:
- bx lr
- .size _backward_target, .-_backward_target
-
- .text
- # Define _start so that linker does not complain.
- .global _start
- .code 32
- .align 2
- .type _start, %function
- _start:
- bx lr
- .size _start, .-_start
- .global _backward_test
- .code 16
- .thumb_func
- .type _backward_test, %function
- _backward_test:
- nop.n
- blx _backward_target
- .size _backward_test, .-_backward_test
- .align 2
- .global _forward_test
- .code 16
- .thumb_func
- .type _forward_test, %function
- _forward_test:
- blx _forward_target
- .size _forward_test, .-_forward_test
- .code 32
-
- .section .text.post,"x"
- # Add padding so that target is just in branch range.
- .space 12
- .align 2
- .global _forward_target
- .code 32
- .type _forward_target, %function
- _forward_target:
- bx lr
- .size _forward_target, .-_forward_target
|
