Hooks to override the default functions of the VM. More...

Collaboration diagram for VM Hooks:

Hooks
int	osevm_opcode_default (ose_bundle osevm)

int32_t	osevm_readOpcode (ose_bundle osevm)

const char *	osevm_opcodeName (ose_bundle b, int32_t off, int32_t n)

void	osevm_evalType_hook (ose_bundle osevm)

#define	OSEVM_ASSIGN osevm_assignStackToEnv

#define	OSEVM_LOOKUP osevm_lookupInEnv_impl

#define	OSEVM_RAISE(osevm) ((void)(osevm))

#define	OSEVM_FUNCALL osevm_funcall

#define	OSEVM_QUOTE osevm_quote

#define	OSEVM_COPYREGISTERTOELEM osevm_copyRegisterToElem

#define	OSEVM_APPENDELEMTOREGISTER osevm_appendElemToRegister

#define	OSEVM_REPLACEREGISTERWITHELEM osevm_replaceRegisterWithElem

#define	OSEVM_MOVEELEMTOREGISTER osevm_moveElemToRegister

#define	OSEVM_TOTYPE osevm_toType

#define	OSEVM_TOINT32 osevm_toInt32

#define	OSEVM_TOFLOAT osevm_toFloat

#define	OSEVM_TOSTRING osevm_toString

#define	OSEVM_TOBLOB osevm_toBlob

#define	OSEVM_TOSYMBOL osevm_toSymbol

#define	OSEVM_TODOUBLE osevm_toDouble

#define	OSEVM_TOINT8 osevm_toInt8

#define	OSEVM_TOUINT8 osevm_toUInt8

#define	OSEVM_TOINT16 osevm_toInt16

#define	OSEVM_TOUINT16 osevm_toUInt16

#define	OSEVM_TOUINT32 osevm_toUInt32

#define	OSEVM_TOINT64 osevm_toInt64

#define	OSEVM_TOUINT64 osevm_toUInt64

#define	OSEVM_TOTIMETAG osevm_toTimetag

#define	OSEVM_TOTRUE osevm_toTrue

#define	OSEVM_TOFALSE osevm_toFalse

#define	OSEVM_TONIL osevm_toNil

#define	OSEVM_TOINFINITUM osevm_toInfinitum

#define	OSEVM_APPENDBYTE osevm_appendByte

#define	OSEVM_RESPONDTOSTRING osevm_respondToString

#define	OSEVM_OPCODE osevm_opcode_default
	What runs an instruction by number (OSETT_OPCODE).

#define	OSEVM_OPCODE_NAME(b, off, n) osevm_opcodeName(b, off, n)
	The name an opcode stands for, or NULL for none. `b` is the bundle the opcode sits in – the control register, or whatever is being printed – and `off` is where the opcode's int32 sits in it, or -1 when the caller does not know. From those the host finds the table that numbers it: a table carried beside the opcode in the same bytes, as a machine from another host carries one, or its own. The answer is a string that outlives the call, or NULL, which prints as the number and runs as unbound. The default, for a libose built without a table, answers NULL.

#define	OSEVM_PREINPUT osevm_preInput

#define	OSEVM_POSTINPUT osevm_postInput

#define	OSEVM_POPINPUTTOCONTROL osevm_popInputToControl

#define	OSEVM_POSTCONTROL osevm_postControl

#define	OSEVM_TYPE_ADDR_EVALTYPE_SUFFIX "/EVTY"

#define	OSEVM_EVALTYPE_ADDR OSE_TYPE_ADDR_PREFIX "%c" OSEVM_TYPE_ADDR_EVALTYPE_SUFFIX

#define	OSEVM_EVALTYPE_ADDR_LEN sizeof(OSEVM_EVALTYPE_ADDR)

#define	OSEVM_EVALTYPE osevm_evalType_hook

Detailed Description

Hooks to override the default functions of the VM.

Macro Definition Documentation

◆ OSEVM_OPCODE

#define OSEVM_OPCODE osevm_opcode_default

What runs an instruction by number (OSETT_OPCODE).

Called by the VM when the control element on top of /_c is a message whose first item is an opcode; osevm_readOpcode() reads the number. Answers nonzero when it ran the instruction. Answers zero when it did not, and the VM then INFLATES the element: the number becomes the string it stands for (OSEVM_OPCODE_NAME) and runs exactly as that string would have, through the same ladder, so an opcode means its name and nothing else. A number no name stands for raises OSE_ERR_UNBOUND, as a name nothing resolves does. The default knows no table and answers zero, which is what a bare libose does with an instruction it cannot run by itself.