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.PUSHFRAME

Generates a UWOP_PUSH_MACHFRAME unwind code entry. If the optional code is specified, the unwind code entry is given a modifier of 1. Otherwise the modifier is 0.

.PUSHFRAME [code]

.PUSHFRAME allows ml64.exe users to specify how a frame function unwinds and is only allowed within the prologue, which extends from the PROC FRAME declaration to the .ENDPROLOG directive. These directives do not generate code; they only generate .xdata and .pdata. .PUSHFRAME should be preceded by instructions that actually implement the actions to be unwound. It is a good practice to wrap both the unwind directives and the code they are meant to unwind in a macro to ensure agreement.

For more information, see MASM for x64 (ml64.exe).

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