kopia lustrzana https://github.com/stlink-org/stlink
35 wiersze
450 B
ArmAsm
35 wiersze
450 B
ArmAsm
.global start
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.syntax unified
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@ r0 = source
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@ r1 = target
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@ r2 = wordcount
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@ r3 = flash_base
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@ r4 = temp
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start:
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lsls r2, r2, #2
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ldr r3, flash_base
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next:
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cbz r2, done
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ldrb r4, [r0]
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strb r4, [r1]
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dsb sy
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wait:
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ldrh r4, [r3, #0x0e]
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tst.w r4, #1
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bne wait
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add r0, #1
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add r1, #1
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sub r2, #1
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b next
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done:
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bkpt
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.align 2
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flash_base:
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.word 0x40023c00
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