kopia lustrzana https://github.com/maccasoft/z80-tools
67 wiersze
1.5 KiB
Java
67 wiersze
1.5 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 And extends InstructionFactory {
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@Override
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public InstructionObject createObject(Scope context, Expression arguments) {
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if (And_R.ARGUMENTS.check(arguments))
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return new And_R(context, arguments);
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if (And_N.ARGUMENTS.check(arguments))
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return new And_N(context, arguments);
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throw new ArgumentException();
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}
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public static class And_R extends InstructionObject {
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public static Schema ARGUMENTS = new Schema(Schema.DIRECT_R_INDIRECT_HL_IX_IY);
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private Expression argument;
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public And_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)(0xA0 | register.get8BitCode()));
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}
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}
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public static class And_N extends InstructionObject {
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public static Schema ARGUMENTS = new Schema(Schema.DIRECT_N);
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private Expression argument;
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public And_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)0xE6, (byte)argument.getInteger() };
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}
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}
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}
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