34 lines
547 B
NASM
34 lines
547 B
NASM
@ this code produces the same binary as listing 1
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.syntax unified
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.cpu cortex-m4
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.thumb
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.text
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.global main
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main:
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MOVS.N R0, #8
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LDR.N R1, =0X40023830
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STR.N R0, [R1, #0]
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MOVS.N R0, #0X55
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LSLS.N R0, R0, #24
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LDR.N R1, =0X40020C00
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STR.N R0, [R1, #0]
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MOVS.N R0, #0
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LDR.N R1, =0X40020C14
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STR.N R0, [R1, #0]
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MOVS.N R3, #15
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LSLS.N R3, R3, #12
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loop:
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LDR.N R2, =0X00145854
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delay:
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SUBS.N R2, #1
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BNE.N delay
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updateLed:
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EORS.N R0, R3
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STR.N R0, [R1, #0]
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B.N loop
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