2020-09-27 18:04:08 -06:00
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.global _start
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.text
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_start:
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2020-10-03 13:49:14 -06:00
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add x1, x0, x0
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add x2, x0, x0
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add x3, x0, x0
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add x4, x0, x0
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add x5, x0, x0
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add x6, x0, x0
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add x7, x0, x0
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add x8, x0, x0
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add x9, x0, x0
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add x10, x0, x0
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add x11, x0, x0
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add x12, x0, x0
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add x13, x0, x0
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add x14, x0, x0
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add x15, x0, x0
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add x16, x0, x0
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add x17, x0, x0
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add x18, x0, x0
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add x19, x0, x0
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add x20, x0, x0
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add x21, x0, x0
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add x22, x0, x0
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add x23, x0, x0
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add x24, x0, x0
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add x25, x0, x0
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add x26, x0, x0
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add x27, x0, x0
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add x28, x0, x0
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add x29, x0, x0
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add x30, x0, x0
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add x31, x0, x0
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# NOTE: nop required because cpu currently does not detect when something is needed from a later stage of the pipeline.
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# 4 clocks allows one instruction to finish before the next starts
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# lui
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nop
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nop
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nop
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lui x1, 0xfedcb # x1 = 0xfedcb000
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# addi
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nop
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nop
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nop
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addi x1, x1, 0x789 # x1 = 0xfedcb789
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addi x2, x0, -1 # x2 = 0xffffffff
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nop
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nop
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addi x3, x1, -0x777 # x3 = 0xfedcb012
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# add
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nop
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nop
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nop
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add x4, x1, x2 # x4 = 0xfedcb788
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# sub
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nop
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nop
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nop
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add x5, x1, x3 # x5 = 0x00000777 incorrect
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# and
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nop
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nop
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nop
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and x6, x1, x2 # x6 = 0xfedcb789
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and x7, x1, x0 # x7 = 0x00000000
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and x8, x4, x3 # x8 = 0xfedcb002 incorrect
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# or
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nop
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nop
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nop
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or x9, x1, x2 # x9 = 0xffffffff
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or x10, x1, x0 # x10 = 0xfedcb789
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or x11, x4, x3 # x11 = 0x0xfedcb798 incorrect
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nop
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nop
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nop
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addi x31, x0, 1 # x1 = 1
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2020-09-27 18:04:08 -06:00
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2020-09-27 18:38:35 -06:00
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loop:
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2020-10-03 13:49:14 -06:00
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nop
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nop
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nop
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addi x31, x31, 1 # increment x1
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nop
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nop
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nop
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j loop # loop forever
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nop
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nop
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nop
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nop
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nop
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nop
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2020-09-27 18:38:35 -06:00
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2020-09-27 18:04:08 -06:00
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.data
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