Virtual Machine Instruction CallSS VMGM menu

Mnemonic: CallSS VMGM menu

Hex Code:	30	08	00	00	RR	4K	00	00	unconditional
Hex Code:	30	M8	00	00	RR	4K	XX	YY	M=1-7, Compare register XX to register YY

Action:	This CallSS VMGM command calls VMG menu type "K" (byte 5 lower nibble) from a title. The RSM command will return to the point in playback where the CallSS was issued unless "RR" (byte 4) is used to specify a different resume cell.
Order:	If a compare is specified, it is performed first. If the conditions are met the CallSS is executed.
Comments:	Restricted to titles (VTS). The only menu type in the VMG is type 2, "title menu", so the only legal value for byte 5 is 42. Related command for use from a menu is JumpSS VMGM menu. See Also Jump and Call graphic.

Compare operation codes
register to register		Alternate mnemonic	Comments
M	operation	Alternate mnemonic	Comments
1	RegX & RegY	BC	Bitwise compare, the two operands are anded, if the result is non-zero the condition is true
2	RegX == RegY	EQ	If the two operands are equal the condition is true
3	RegX != RegY	NE	If the two operands are not equal the condition is true
4	RegX >= RegY	GE	If RegX is greater than or equal to the right operand the condition is true
5	RegX > RegY	GT	If RegX is greater than the right operand the condition is true
6	RegX <= RegY	LE	If RegX is less than or equal to the right operand the condition is true
7	RegX < RegY	LT	If RegX is less than the right operand the condition is true

Register Codes
0x00 through 0x0F	General Purpose registers 0 to 15 (GPRM)
0x80 through 0x97	System Parameter registers 0 to 23 (SPRM)
all others	do not use

Numerically

Alphabetically

Index

Alphabetically

Numerically

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