mirror of
https://gitlab.os-k.eu/os-k-team/kvisc.git
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83 lines
1.3 KiB
Plaintext
83 lines
1.3 KiB
Plaintext
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# The OS/K Team licenses this file to you under the MIT license.
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# See the LICENSE file in the project root for more information.
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#---------------------------------------------------------------------------#
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# Movement instructions #
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#---------------------------------------------------------------------------#
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#
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# Load Effective Address (LEA) instruction
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#
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# $1 = ADDR($2)
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#
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# For instance:
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# LEA RAX, [RBX + RCX + 4]
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# will result in:
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# RAX = RBX + RCX + 4
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#
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# Preserves all flags
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#
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lea rm m
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#
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# Movement (MOV) instruction
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#
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# $1 = $2
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#
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mov rm rim
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#
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# Movement with zero-extension (MOVZX) instruction
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#
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# $1 = ZeroExtend($2)
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#
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movzx rm m
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#
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# Exchange (XCHG) instruction
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#
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# $_ = $1
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# $1 = $2
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# $2 = $_
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#
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xchg rm rim
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#
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# Compare-and-exchange (CMPXCHG) instruction
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#
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# IF ($1 == RAX) THEN
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# $1 = $2
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# ZF = 1
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# ELSE
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# RAX = $1
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# ZF = 0
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# FI
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#
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# Preserves CF, OF and SF
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#
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cmpxchg rm rim
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#
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# Load argument #N (LDARG)
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#
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# IF ($2 < 8) THEN
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# $1 = AX$2
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# ELSE
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# $1 = LX($2-8)
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# FI
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#
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# Throws:
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# #ILL if $2 ≥ 16
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#
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ldarg rm rim
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#
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# Get code/data offset (GCO/GCD)
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#
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# $1 = CR1 (GCO)
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# $1 = CR2 (GCD)
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#
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gco rm
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gcd rm
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