kopia lustrzana https://github.com/maccasoft/z80-tools
92 wiersze
2.2 KiB
Java
92 wiersze
2.2 KiB
Java
package nl.grauw.glass.instructions;
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import nl.grauw.glass.Scope;
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import nl.grauw.glass.expressions.Expression;
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import nl.grauw.glass.expressions.Register;
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import nl.grauw.glass.expressions.Schema;
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public class Adc extends InstructionFactory {
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@Override
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public InstructionObject createObject(Scope context, Expression arguments) {
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if (Adc_A_R.ARGUMENTS.check(arguments))
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return new Adc_A_R(context, arguments.getElement(1));
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if (Adc_A_N.ARGUMENTS.check(arguments))
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return new Adc_A_N(context, arguments.getElement(1));
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if (Adc_HL_RR.ARGUMENTS.check(arguments))
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return new Adc_HL_RR(context, arguments.getElement(1));
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throw new ArgumentException();
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}
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public static class Adc_A_R extends InstructionObject {
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public static Schema ARGUMENTS = new Schema(Schema.DIRECT_A, Schema.DIRECT_R_INDIRECT_HL_IX_IY);
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private Expression argument;
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public Adc_A_R(Scope context, Expression arguments) {
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super(context);
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this.argument = arguments;
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}
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@Override
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public int getSize() {
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return indexifyIndirect(argument.getRegister(), 1);
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}
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@Override
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public byte[] getBytes() {
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Register register = argument.getRegister();
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return indexifyIndirect(register, (byte)(0x88 | register.get8BitCode()));
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}
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}
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public static class Adc_A_N extends InstructionObject {
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public static Schema ARGUMENTS = new Schema(Schema.DIRECT_A, Schema.DIRECT_N);
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private Expression argument;
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public Adc_A_N(Scope context, Expression arguments) {
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super(context);
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this.argument = arguments;
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}
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@Override
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public int getSize() {
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return 2;
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}
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@Override
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public byte[] getBytes() {
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return new byte[] { (byte)0xCE, (byte)argument.getInteger() };
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}
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}
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public static class Adc_HL_RR extends InstructionObject {
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public static Schema ARGUMENTS = new Schema(Schema.DIRECT_HL, Schema.DIRECT_RR);
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private Expression argument;
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public Adc_HL_RR(Scope context, Expression argument) {
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super(context);
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this.argument = argument;
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}
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@Override
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public int getSize() {
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return 2;
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}
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@Override
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public byte[] getBytes() {
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return new byte[] { (byte)0xED, (byte)(0x4A | argument.getRegister().get16BitCode() << 4) };
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}
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}
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}
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