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25 lines
844 B
NASM
25 lines
844 B
NASM
// RUN: python3 -m riscemu -v -o ignore_exit_code %s | filecheck %s
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.data
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fibs: .space 1024
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.text
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main:
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addi s1, zero, 0 // storage index
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addi s2, zero, 1024 // last storage index
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addi t0, zero, 1 // t0 = F_{i}
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addi t1, zero, 1 // t1 = F_{i+1}
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loop:
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sw t0, fibs(s1) // save
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add t2, t1, t0 // t2 = F_{i+2}
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addi t0, t1, 0 // t0 = t1
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addi t1, t2, 0 // t1 = t2
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addi s1, s1, 4 // increment storage pointer
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blt s1, s2, loop // loop as long as we did not reach array length
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ebreak
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// exit gracefully
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add a0, zero, t2
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addi a7, zero, 93
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scall // exit with code fibs(n) & 2^32
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// CHECK: [CPU] Program exited with code 1265227608
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