28 abstract class Opcode {  class
30 	internal Opcode()  in Opcode()  method in Opcode
35 	 * Execute this opcode.
40 	 * Resolve the target (word reference) for this opcode.
44 		throw new Exception("Not a call opcode");  in ResolveTarget()
48 	 * Resolve the jump offset for this opcode. Displacement is
49 	 * relative to the address of the opcode that immediately follows
54 		throw new Exception("Not a jump opcode");  in ResolveJump()
58 	 * Get the Word that this opcode references; this can happen
68 	 * Get the data block that this opcode references; this can happen
78 	 * Test whether this opcode may "fall through", i.e. execution
79 	 * may at least potentially proceed to the next opcode.
97 	 * Get stack effect for this opcode (number of elements added to
111 	 * this opcode, at gcode[off]; it is used to compute actual