moppre Z80 opcodes implemented

src/zvm_m65/z80_instr_exchange.s

@@ -0,0 +1,67 @@
+
+;
+; Z80 data exchange instructions
+;
+
+
+Z80_instr_EB:      ; EX DE,HL
+
+	ldx REG_D
+	ldy REG_H
+	sty REG_D
+	stx REG_H
+
+	ldx REG_E
+	ldy REG_L
+	sty REG_E
+	stx REG_L
+
+	rts
+
+Z80_instr_08:      ; EX AF,AF''
+
+	ldx REG_A
+	ldy REG_A_SH
+	sty REG_A
+	stx REG_A_SH
+
+	ldx REG_F
+	ldy REG_F_SH
+	sty REG_F
+	stx REG_F_SH
+
+	rts
+
+Z80_instr_D9:      ; EXX
+
+	ldx REG_B
+	ldy REG_B_SH
+	sty REG_B
+	stx REG_B_SH
+
+	ldx REG_C
+	ldy REG_C_SH
+	sty REG_C
+	stx REG_C_SH
+
+	ldx REG_D
+	ldy REG_D_SH
+	sty REG_D
+	stx REG_D_SH
+
+	ldx REG_E
+	ldy REG_E_SH
+	sty REG_E
+	stx REG_E_SH
+
+	ldx REG_H
+	ldy REG_H_SH
+	sty REG_H
+	stx REG_H_SH
+
+	ldx REG_L
+	ldy REG_L_SH
+	sty REG_L
+	stx REG_L_SH
+
+	rts