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82 lines
849 B
ArmAsm
82 lines
849 B
ArmAsm
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.syntax unified
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.cpu cortex-a8
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.thumb
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.text
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@ expansion 32 bytes
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.macro bw1
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1:
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add.w r0, r1, r2
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blx.w arm_target
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add.w r0, r1, r2
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blx.w arm_target
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add.w r0, r1, r2
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blx.w arm_target
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add.w r0, r1, r2
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blx.w arm_target
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.endm
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@ expansion 128 bytes
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.macro bw2
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bw1
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bw1
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bw1
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bw1
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.endm
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@ expansion 32 bytes
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.macro bw3
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1:
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add.w r0, r1, r2
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bne.w 1b
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add.w r0, r1, r2
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bne.w 1b
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add.w r0, r1, r2
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bne.w 1b
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add.w r0, r1, r2
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bne.w 1b
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.endm
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@ expansion 128 bytes
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.macro bw4
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bw3
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bw3
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bw3
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bw3
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.endm
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.align 3
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.global _start
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.thumb
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.thumb_func
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.type _start, %function
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_start:
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nop
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@ Trigger Cortex-A8 erratum workaround with b<cond> instructions.
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bw4
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bw4
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nop
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.rept 957
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nop.w
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.endr
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.arm
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arm_target:
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add r3, r4, r5
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bx lr
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.thumb
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bl_insns:
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nop
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@ ...and again with bl instructions.
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bw2
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bw2
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bx lr
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