Control flow
[Core Opcodes]

Functions
void _VM_CALL	vm_op_SNZ (vm_t vm, int data)
void _VM_CALL	vm_op_SZ (vm_t vm, int data)
void _VM_CALL	vm_op_jmp_Label (vm_t vm, word_t data)
void _VM_CALL	vm_op_call_Label (vm_t vm, word_t data)
	call Label : perform intra-segment call.
void _VM_CALL	vm_op_retval_Int (vm_t vm, word_t n)
	retval Int : clean the data stack and return one value
void _VM_CALL	vm_op_ret_Int (vm_t vm, word_t n)
	ret Int : clean the data stack and return
void _VM_CALL	vm_op_instCatcher_Label (vm_t vm, long rel_ofs)
	instCatcher Label : install a catch vector
void _VM_CALL	vm_op_uninstCatcher_Label (vm_t vm, long rel_ofs)
	uninstCatcher Label : uninstall a catch vector and jump to offset
void _VM_CALL	vm_op_throw (vm_t vm, word_t unused)
	throw pop a piece of data if it is available and use it as an exception.
void _VM_CALL	vm_op_getException (vm_t vm, word_t unused)

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Function Documentation

void _VM_CALL vm_op_SNZ	(	vm_t	vm,
		int	data
	)

void _VM_CALL vm_op_SZ	(	vm_t	vm,
		int	data
	)

void _VM_CALL vm_op_jmp_Label	(	vm_t	vm,
		word_t	data
	)

void _VM_CALL vm_op_call_Label	(	vm_t	vm,
		word_t	data
	)

call Label : perform intra-segment call.

• call (current program):(current IP + relative jump offset)

void _VM_CALL vm_op_retval_Int	(	vm_t	vm,
		word_t	n
	)

retval Int : clean the data stack and return one value

• preserve top of data stack,
• pop n elements from data stack,
• restore old stack top,
• return

void _VM_CALL vm_op_ret_Int	(	vm_t	vm,
		word_t	n
	)

ret Int : clean the data stack and return

• pop n elements from data stack,
• return

void _VM_CALL vm_op_instCatcher_Label	(	vm_t	vm,
		long	rel_ofs
	)

instCatcher Label : install a catch vector

• install catch vector

void _VM_CALL vm_op_uninstCatcher_Label	(	vm_t	vm,
		long	rel_ofs
	)

uninstCatcher Label : uninstall a catch vector and jump to offset

• uninstall top catcher,
• jump at label in parameter

void _VM_CALL vm_op_throw	(	vm_t	vm,
		word_t	unused
	)

throw pop a piece of data if it is available and use it as an exception.

• pop exception data e if available OR set e to "Global failure : throw without data.",
• pop a catch vector if available,
• clean call stack and jump to catch vector OR kill thread

void _VM_CALL vm_op_getException	(	vm_t	vm,
		word_t	unused
	)

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