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builtInFunsSD_6502.c
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builtInFunsSD_6502.c
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/*
* Copyright (c) 1987 Fujitsu
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/*
builtInFunsSD_6502.c -- Code for target-processor dependent
intrinsic user callable functions in the Macross assembler.
(6502 version).
Chip Morningstar -- Lucasfilm Ltd.
23-April-1985
*/
#include "macrossTypes.h"
#include "macrossGlobals.h"
#include "builtInFunctions.h"
#include "operandStuff.h"
/* Check if operand is the accumulator */
valueType *
isARegisterBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
A_REGISTER_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is DIRECT */
valueType *
isDirectModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
EXPRESSION_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is IMMEDIATE */
valueType *
isImmediateModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
IMMEDIATE_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is INDEXED (either X or Y) */
valueType *
isIndexedModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
X_INDEXED_OPND || evaluatedParameter->addressMode ==
Y_INDEXED_OPND || evaluatedParameter->addressMode ==
X_SELECTED_OPND || evaluatedParameter->addressMode ==
Y_SELECTED_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is INDIRECT */
valueType *
isIndirectModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
INDIRECT_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is POST-INDEXED */
valueType *
isPostIndexedModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
POST_INDEXED_Y_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is PRE-INDEXED */
valueType *
isPreIndexedModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
PRE_INDEXED_X_OPND || evaluatedParameter->
addressMode == PRE_SELECTED_X_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is X-INDEXED */
valueType *
isXIndexedModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
X_INDEXED_OPND || evaluatedParameter->addressMode ==
X_SELECTED_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand is the X index register */
valueType *
isXRegisterBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
X_REGISTER_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand's address mode is Y-INDEXED */
valueType *
isYIndexedModeBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
Y_INDEXED_OPND || evaluatedParameter->addressMode ==
Y_SELECTED_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}
/* Check if an operand is the Y index register */
valueType *
isYRegisterBIF(operandListType *parameterList, fixupKindType kindOfFixup)
{
valueType *evaluatedParameter;
if (parameterList != NULL) {
evaluatedParameter = evaluateOperand(parameterList);
return(makeBooleanValue(evaluatedParameter->addressMode ==
Y_REGISTER_OPND));
} else {
return(makeBooleanValue(FALSE));
}
}