111 lines
1.7 KiB
Plaintext
111 lines
1.7 KiB
Plaintext
# 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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# Stack manipulation instructions #
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#---------------------------------------------------------------------------#
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#
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# Unconditional jump with possible return (CALL)
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#
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# PUSH(RIP)
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# JMP(RIP)
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#
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call 1
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call 2
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call 3
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#
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# Return to caller (RET)
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#
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# POP(RIP)
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#
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ret 0
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ret 1
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#
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# Make new stack frame (ENTER)
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#
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# PUSH(RBP)
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# RBP = RSP
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# RSP = RSP - $1
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#
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enter 0
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enter 1
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enter 2
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#
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# Leave stack frame (LEAVE)
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#
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# RSP = RBP
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# POP(RBP)
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#
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leave 0
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#
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# PUSH value onto stack
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#
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# RSP = RSP - 8
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# *RSP = $1
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#
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push 1
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push 2
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push 3
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#
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# POP value from stack
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#
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# $1 = *RSP
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# RSP = RSP + 8
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#
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pop 0
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pop 1
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pop 2
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#---------------------------------------------------------------------------#
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# Movement instructions #
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#---------------------------------------------------------------------------#
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nul 1
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nul 2
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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 * 2 + 4]
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# will result in:
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# RAX = RBX + RCX * 2 + 4
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#
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lea 2
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#
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# Move data (MOV/MOVU) instructions
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#
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# $1 = SignExtend($2) (MOV)
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# $1 = ZeroExtend($2) (MOVU)
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#
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mov 2
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movzx 2
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#
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# Move with sign-extension (MOVx) instruction
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#
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# $1 = SignExtend($2 & (2^(8 * sizeof(x)) - 1)
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#
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movb 2
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movw 2
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movd 2
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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 2
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