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# Copyright 2014, Sinclair R.F., Inc.
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# Copyright 2014-2015, Sinclair R.F., Inc.
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from asmDef import AsmException
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def fetchoffset(ad):
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def fetchoffset(ad):
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"""
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"""
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Built-in macro to copy the value at the specified offset into the specified
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Built-in macro to copy the value at the specified offset into the specified
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variable to the top of the data stack.\n
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variable to the top of the data stack.\n
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# Define the macro functionality.
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# Define the macro functionality.
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def emitFunction(ad,fp,argument):
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def emitFunction(ad,fp,argument):
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(addr,ixBank,bankName) = ad.Emit_GetAddrAndBank(argument[0]);
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(addr,ixBank,bankName) = ad.Emit_GetAddrAndBank(argument[0]);
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offset = ad.Emit_EvalSingleValue(argument[1]);
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offset = ad.Emit_EvalSingleValue(argument[1]);
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if addr+offset >= 256:
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raise asmDef.AsmException('Unreasonable address+length=0x%02X+0x%02X >= 256 at %s' % (addr,N,argument[0]['loc'],))
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ad.EmitPush(fp,addr+offset,ad.Emit_String('%s+%s' % (argument[0]['value'],offset,)),argument[0]['loc']);
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ad.EmitPush(fp,addr+offset,ad.Emit_String('%s+%s' % (argument[0]['value'],offset,)),argument[0]['loc']);
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ad.EmitOpcode(fp,ad.specialInstructions['fetch'] | ixBank,'fetch '+bankName);
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ad.EmitOpcode(fp,ad.specialInstructions['fetch'] | ixBank,'fetch '+bankName);
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ad.EmitFunction['.fetchoffset'] = emitFunction;
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ad.EmitFunction['.fetchoffset'] = emitFunction;
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No newline at end of file
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No newline at end of file
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