`define INSN_VOP_INTR 8'b11111100 // 0xFC is grabbed by the fetch if there is an interrupt pending.
`define INSN_DI 8'b11110011
`define INSN_EI 8'b11111011
+`define INSN_INCDEC_HL 8'b0011010x
+`define INSN_INCDEC_reg8 8'b00xxx10x
+`define INSN_LD8M_A 8'b111x0000 // 1111 for ld A, x; 1110 for ld x, A; bit 1 specifies 16m8 or 8m8
+`define INSN_LD16M_A 8'b111x1010 // 1111 for ld A, x; 1110 for ld x, A; bit 1 specifies 16m8 or 8m8
`define INSN_cc_NZ 2'b00
`define INSN_cc_Z 2'b01