81 lines
1.5 KiB
NASM
81 lines
1.5 KiB
NASM
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.section data $0x0 {
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flags: .u8 $0b1001
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main:
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; Test bit and
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mov %status, $1
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mov %r0, $0b1000
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and %r0, (flags)u8
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cmpeq %r0, $0b1000
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jz end
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; Test shift right
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mov %status, $2
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shr %r0, $2
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cmpeq %r0, $0b0010
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jz end
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; Test bit and
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mov %status, $3
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and %r0, (flags)u8
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cmpeq %r0, $0
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jz end
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; Test bit or
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mov %status, $4
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or %r0, (flags)u8
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cmpeq %r0, (flags)u8
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jz end
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; Test bit or
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mov %status, $5
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or %r0, $0b10
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cmpeq %r0, $0b1011
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jz end
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; Test shift left
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mov %status, $6
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shl %r0, $1
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cmpeq %r0, $0b10110
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jz end
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; Test xor
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mov %status, $7
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xor %r0, %r0
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cmpeq %r0, $0
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jz end
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; Test xor
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mov %status, $8
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mov %r0, $0b1000
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xor %r0, (flags)u8
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cmpeq %r0, $1
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jz end
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; Test inv
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mov %status, $9
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; TODO : destination size - the line below inverts all 64 bits instead of the source 8 bits
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; inv %r0, (flags)u8
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inv (flags)u8, (flags)u8
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cmpeq (flags)u8, $0b11110110
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jz end
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; Test inv again (reset flags to their previous value)
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mov %status, $10
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inv (flags)u8, (flags)u8
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cmpeq (flags)u8, $0b00001001
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jz end
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mov %status, $0
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end:
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halt
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.export main
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}
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.meta {
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entry: main
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}
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