Convert MIPS Assembly language to C or Java

Question

Consider the following loop.

loop: lw r1, 0(r1)
and r1, r1, r2
lw r1, 0(r1)
lw r1, 0(r1)
beq r1, r0, loop

Rewrite the above assembly code back to C or Java code

Answer 1

The provided MIPS assembly code does not translate directly to a meaningful high-level code in C or Java, because it appears to have some logical issues. There are multiple loads from the address pointed by r1 without modifying the value of r1 in between, and also an AND operation with r2 that doesn't seem to have an effect on the control flow or the memory.