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|
# dynamic variables with stack
<
"dyn" enterSubScope
5 ==DYNAMICVARIABLEMARKER
<
# get dynamic variable value
# 0 -> dynamic variable object
# 0 <- non-zero if a value is defined, zero otherwise
# 1 <- current value (if it exists)
[[
/rbx :popqReg
/rdx :popqReg
DYNAMICVARIABLEMARKER /rax :movqImmReg
:STACKBOTTOMMARKER /rcx :movqImmReg
/r15 /rsi :movqRegReg
8 /rsi :subqImm8Reg
@scanStack
8 /rsi :addqImm8Reg
/rsi /rax :cmpqMemReg
/dynamicVariableMarker :jzLbl8
/rsi /rcx :cmpqMemReg
/scanStack :jnzLbl8
# no value was found
/rax /rax :xorqRegReg
63 /rax :btsqImm8Reg
/rax :pushqReg
/rbx :pushqReg
:retn
@dynamicVariableMarker
8 /rsi /rdx :cmpqMemDisp8Reg
/scanStack :jnzLbl8 # wrong variable
16 /rsi :pushqMemDisp8
/rax /rax :xorqRegReg
/rax :incqReg
63 /rax :btsqImm8Reg
/rax :pushqReg
/rbx :pushqReg
:retn
]] /eyget defv
# set dynamic variable and execute function
# 0 -> dynamic variable object
# 1 -> value to set
# 2 -> object to execute
[[
8 /r15 :subqImm8Reg
/r15 :popqMem
24 /r15 :subqImm8Reg
8 /r15 :popqMemDisp8
16 /r15 :popqMemDisp8
DYNAMICVARIABLEMARKER /rax :movqImmReg
/rax /r15 :movqRegMem
|ey* /rax :movqImmReg
/rax :callqReg
24 /r15 :addqImm8Reg
/r15 :pushqMem
8 /r15 :addqImm8Reg
:retn
]] /eywith defv
> _ ==globalFunctions { defv }' ::allocateOffsetStruct
[
globalFunctions keys eydeff { | }' createScopeEntries
createScopeExtensionEntries
] :execute
leaveSubScope
> --
# vim: syn=elymas
|
