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The LDR instruction doesn't function correctly unless the address is a multiple of 4. #21

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fkuzume opened this issue May 5, 2024 · 0 comments
Open

The LDR instruction doesn't function correctly unless the address is a multiple of 4. #21

fkuzume opened this issue May 5, 2024 · 0 comments

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@fkuzume
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fkuzume commented May 5, 2024 

        mov     r1, #0xff
        mov     r0, #32
        str     r0, [r11]
        ldr     r1, [r11, #3]

When the value of r11+3 isn't a multiple of 4, the ldr instruction doesn't function correctly.

According to the ARM Architecture Referrence Manual:
data = Memory[address,4] Rotate_Right (8 * address[1:0])
This is how it is described.
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