vmreturn

 

 

Description

When evaluated, this vm instruction returns the source word value to the caller. The execution of the current Lambda is terminated and control is returned to the caller. The source argument must be a word. The result will be returned as a word. This instruction will never an Error value. After the operation, control is returned to the caller. The operation of this vm instruction is expressed in the following C expression

 

Syntax

(vmreturn source)


Name Format AIS Types
sourceregoffsetword


 

Examples

Here are a number of links to Lambda coding examples which contain this instruction in various use cases.

		(defun vmmove_test(e)
    		vars: (a)
    		pvars: (b)
    		cvars: (c)
    		(vmmove e a)
    		(vmmove a b)
    		(vmmove b c)
    		(vmreturn c)
		)
		(writeln(vmmove_test "ab"))
		

 

Keyword Links

Here are a number of links to this instruction by related keywords.

[...under construction ]

 

Instruction Type

Here are a number of links to this instructions of this same type.

vmadd vmaddi vmaddn vmand
vmapply vmargcount vmargfetch vmcadd
vmcall vmcallarg vmcdiv vmcmul
vmcsub vmdebugger vmdiv vmdivi
vmdivn vmdivr vmdivri vmiadd
vmiand vmiandb vmidiv vmidivr
vmimul vmior vmiorb vmisub
vmixor vmixorb vmjump vmjumpcc
vmmove vmmovei vmmoven vmmul
vmmuli vmmuln vmnadd vmndiv
vmndivr vmnmul vmnop vmnsub
vmonerror vmopt vmor vmpop
vmpush vmref vmrefbitvector vmrefbytevector
vmrefdickey vmrefdicvalue vmrefdirkey vmrefdirvalue
vmreffltvector vmrefintvector vmreflongvector vmrefmatrix
vmrefnummatrix vmrefnumvector vmrefobjvector vmrefpcdvector
vmrefshortvector vmrefstring vmrefstrkey vmrefstrvalue
vmrefsymbol vmreftext vmrefvector vmreturn
vmself vmsend vmset vmsetbitvector
vmsetbytevector vmsetdickey vmsetdicvalue vmsetdirkey
vmsetdirvalue vmsetfltvector vmsetintvector vmsetlongvector
vmsetmatrix vmsetnummatrix vmsetnumvector vmsetobjvector
vmsetpcdvector vmsetshortvector vmsetstring vmsetstrkey
vmsetstrvalue vmsetvector vmshl vmshr
vmsmovei vmsub vmsubi vmsubn
vmtestescape vmxor

 

Argument Types

Here are a number of links which are related to this instructions .

vmapply vmargcount vmargfetch vmcall
vmcallarg vmmove vmmovei vmmoven
vmnatSaveCharacter vmnatSaveFloat vmnatSaveInteger vmnatSaveLong
vmnatSaveNumber vmnatSaveObject vmnatSaveShort vmonerror
vmpop vmpush vmref vmrefbitvector
vmrefbytevector vmrefdickey vmrefdicvalue vmrefdirkey
vmrefdirvalue vmreffltvector vmrefintvector vmreflongvector
vmrefmatrix vmrefnummatrix vmrefnumvector vmrefobjvector
vmrefpcdvector vmrefshortvector vmrefstring vmrefstrkey
vmrefstrvalue vmrefsymbol vmreftext vmrefvector
vmregLoadAddress vmregLoadDclType vmregLoadInteger vmregLoadTail
vmregLoadType vmregRefWord vmregSaveDeclType vmregSaveDeclTypeImmediate
vmregSaveInteger vmregSaveNumber vmregSaveTail vmregSaveTailImmediate
vmregSetWord vmregSetXWord vmregmoven vmreturn
vmself vmsend vmset vmsetbitvector
vmsetbytevector vmsetdickey vmsetdicvalue vmsetdirkey
vmsetdirvalue vmsetfltvector vmsetintvector vmsetlongvector
vmsetmatrix vmsetnummatrix vmsetnumvector vmsetobjvector
vmsetpcdvector vmsetshortvector vmsetstring vmsetvector
vmsmovei

 

Virtual Machine Instructions

AIS Lambdas are designed to be write-once-run-anywhere executable objects. This is accomplished via the virtual machine concept of software Lambda execution. Lambda virtual machines are designed to be mapped onto the actual host microchip at the server location, providing faithful Lambda execution wherever the Lambda may travel on the Internet. There are currently several virtual machines operating within Analytic Information Server. The DRM virtual machine uses a Dynamically typed Register Machine model to provide portable Lambda execution from high level dynamically typed instructions all the way to super fast microchip-level register execution. The DRM virtual machine runs in emulation mode during the testing and debug phases of Lambda development, and there is an AIS Lambda debugger available for Lambdas running on this virtual machine. During the final release phases of Lambda development, DRM virtual machine Lambdas are automatically converted to the NATIVE virtual machine on the host computer, using the just-in-time compiler. The NATIVE virtual machine is a faithful machine language translation of the execution rules in the DRM virtual machine onto the actual host microchip at the server location. NATIVE virtual machine execution runs at microchip-level execution speeds.

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