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Improved static value analysis to identify #<0, #>0 as identical to #0
This commit is contained in:
parent
7d08159fb2
commit
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@ -72,43 +72,37 @@ public class AsmProgramStaticRegisterValues {
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current.setA(instruction.getParameter());
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current.setA(instruction.getParameter());
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current.setaMem(null);
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current.setaMem(null);
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try {
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Integer immValue = getImmValue(instruction.getParameter());
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int immValue = getImmValue(instruction);
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if (immValue != null) {
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current.setZ(immValue == 0);
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current.setZ(immValue == 0);
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current.setN(immValue > 127);
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current.setN(immValue > 127);
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} catch (NumberFormatException e) {
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// ignore
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}
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}
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}
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}
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if (instructionType.getMnemnonic().equals("sta") && (instructionType.getAddressingMode().equals(AsmAddressingMode.ZP)||instructionType.getAddressingMode().equals(AsmAddressingMode.ABS))) {
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if (instructionType.getMnemnonic().equals("sta") && (instructionType.getAddressingMode().equals(AsmAddressingMode.ZP) || instructionType.getAddressingMode().equals(AsmAddressingMode.ABS))) {
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current.setaMem(instruction.getParameter());
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current.setaMem(instruction.getParameter());
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}
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}
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if (instructionType.getMnemnonic().equals("ldx") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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if (instructionType.getMnemnonic().equals("ldx") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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current.setX(instruction.getParameter());
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current.setX(instruction.getParameter());
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current.setxMem(null);
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current.setxMem(null);
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try {
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Integer immValue = getImmValue(instruction.getParameter());
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int immValue = getImmValue(instruction);
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if (immValue != null) {
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current.setZ(immValue == 0);
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current.setZ(immValue == 0);
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current.setN(immValue > 127);
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current.setN(immValue > 127);
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} catch (NumberFormatException e) {
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// ignore
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}
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}
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}
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}
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if (instructionType.getMnemnonic().equals("stx") && (instructionType.getAddressingMode().equals(AsmAddressingMode.ZP)||instructionType.getAddressingMode().equals(AsmAddressingMode.ABS))) {
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if (instructionType.getMnemnonic().equals("stx") && (instructionType.getAddressingMode().equals(AsmAddressingMode.ZP) || instructionType.getAddressingMode().equals(AsmAddressingMode.ABS))) {
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current.setxMem(instruction.getParameter());
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current.setxMem(instruction.getParameter());
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}
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}
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if (instructionType.getMnemnonic().equals("ldy") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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if (instructionType.getMnemnonic().equals("ldy") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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current.setY(instruction.getParameter());
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current.setY(instruction.getParameter());
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current.setyMem(null);
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current.setyMem(null);
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try {
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Integer immValue = getImmValue(instruction.getParameter());
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int immValue = getImmValue(instruction);
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if (immValue != null) {
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current.setZ(immValue == 0);
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current.setZ(immValue == 0);
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current.setN(immValue > 127);
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current.setN(immValue > 127);
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} catch (NumberFormatException e) {
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// ignore
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}
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}
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}
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}
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if (instructionType.getMnemnonic().equals("sty") && (instructionType.getAddressingMode().equals(AsmAddressingMode.ZP)||instructionType.getAddressingMode().equals(AsmAddressingMode.ABS))) {
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if (instructionType.getMnemnonic().equals("sty") && (instructionType.getAddressingMode().equals(AsmAddressingMode.ZP) || instructionType.getAddressingMode().equals(AsmAddressingMode.ABS))) {
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current.setyMem(instruction.getParameter());
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current.setyMem(instruction.getParameter());
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}
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}
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if (instructionType.getMnemnonic().equals("txa")) {
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if (instructionType.getMnemnonic().equals("txa")) {
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@ -137,18 +131,47 @@ public class AsmProgramStaticRegisterValues {
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return current;
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return current;
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}
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}
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private int getImmValue(AsmInstruction instruction) {
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public static Integer getImmValue(String parameter) {
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int immValue;
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Integer immValue = null;
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if(instruction.getParameter().equals("<0")) {
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if (parameter != null) {
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immValue = 0;
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if(parameter.startsWith("<")) {
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} else if(instruction.getParameter().equals(">0")) {
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try {
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immValue = 0;
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int parValue = Integer.parseInt(parameter.substring(1));
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} else{
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return 0xff & parValue;
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immValue = Integer.parseInt(instruction.getParameter());
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} catch (NumberFormatException e) {
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// ignore
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}
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} else if(parameter.startsWith(">")) {
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try {
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int parValue = Integer.parseInt(parameter.substring(1));
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return 0xff & (parValue / 0x100);
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} catch (NumberFormatException e) {
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// ignore
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}
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} else {
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try {
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immValue = Integer.parseInt(parameter);
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return immValue;
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} catch (NumberFormatException e) {
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// ignore
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}
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}
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}
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}
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return immValue;
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return immValue;
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}
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}
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public static boolean matchImm(String immVal1, String immVal2) {
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if (immVal1 != null && immVal2 != null && immVal1.equals(immVal2)) {
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return true;
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}
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Integer immInt1 = getImmValue(immVal1);
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Integer immInt2 = getImmValue(immVal2);
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if (immInt1 != null && immInt2 != null && immInt1.equals(immInt2)) {
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return true;
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}
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return false;
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}
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/**
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/**
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* Known values of registers/flags at an instruction. null where value is unknown.
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* Known values of registers/flags at an instruction. null where value is unknown.
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*/
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*/
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@ -260,6 +283,7 @@ public class AsmProgramStaticRegisterValues {
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this.z = z;
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this.z = z;
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}
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}
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}
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}
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}
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}
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@ -34,13 +34,13 @@ public class Pass5UnnecesaryLoadElimination extends Pass5AsmOptimization {
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if (instructionType.getMnemnonic().equals("lda") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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if (instructionType.getMnemnonic().equals("lda") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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String immValue = instruction.getParameter();
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String immValue = instruction.getParameter();
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AsmProgramStaticRegisterValues.AsmRegisterValues instructionValues = staticValues.getValues(instruction);
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AsmProgramStaticRegisterValues.AsmRegisterValues instructionValues = staticValues.getValues(instruction);
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if (instructionValues.getA() != null && instructionValues.getA().equals(immValue)) {
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if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getA(), immValue)) {
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modified = remove(lineIt);
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modified = remove(lineIt);
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} else if (instructionValues.getX() != null && instructionValues.getX().equals(immValue)) {
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} else if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getX(), immValue)) {
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getLog().append("Replacing instruction "+instruction+" with TXA");
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getLog().append("Replacing instruction "+instruction+" with TXA");
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instruction.setType(AsmInstructionSet.getInstructionType("txa", AsmAddressingMode.NON, null, false));
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instruction.setType(AsmInstructionSet.getInstructionType("txa", AsmAddressingMode.NON, null, false));
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instruction.setParameter(null);
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instruction.setParameter(null);
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} else if (instructionValues.getY() != null && instructionValues.getY().equals(immValue)) {
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} else if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getY(), immValue)) {
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getLog().append("Replacing instruction "+instruction+" with TYA");
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getLog().append("Replacing instruction "+instruction+" with TYA");
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instruction.setType(AsmInstructionSet.getInstructionType("tya", AsmAddressingMode.NON, null, false));
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instruction.setType(AsmInstructionSet.getInstructionType("tya", AsmAddressingMode.NON, null, false));
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instruction.setParameter(null);
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instruction.setParameter(null);
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@ -64,9 +64,9 @@ public class Pass5UnnecesaryLoadElimination extends Pass5AsmOptimization {
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if (instructionType.getMnemnonic().equals("ldx") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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if (instructionType.getMnemnonic().equals("ldx") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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String immValue = instruction.getParameter();
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String immValue = instruction.getParameter();
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AsmProgramStaticRegisterValues.AsmRegisterValues instructionValues = staticValues.getValues(instruction);
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AsmProgramStaticRegisterValues.AsmRegisterValues instructionValues = staticValues.getValues(instruction);
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if (instructionValues.getX() != null && instructionValues.getX().equals(immValue)) {
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if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getX(), immValue)) {
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modified = remove(lineIt);
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modified = remove(lineIt);
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} else if (instructionValues.getA() != null && instructionValues.getA().equals(immValue)) {
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} else if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getA(), immValue)) {
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getLog().append("Replacing instruction "+instruction+" with TAX");
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getLog().append("Replacing instruction "+instruction+" with TAX");
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instruction.setType(AsmInstructionSet.getInstructionType("tax", AsmAddressingMode.NON, null, false));
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instruction.setType(AsmInstructionSet.getInstructionType("tax", AsmAddressingMode.NON, null, false));
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instruction.setParameter(null);
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instruction.setParameter(null);
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@ -86,9 +86,9 @@ public class Pass5UnnecesaryLoadElimination extends Pass5AsmOptimization {
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if (instructionType.getMnemnonic().equals("ldy") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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if (instructionType.getMnemnonic().equals("ldy") && instructionType.getAddressingMode().equals(AsmAddressingMode.IMM)) {
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String immValue = instruction.getParameter();
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String immValue = instruction.getParameter();
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AsmProgramStaticRegisterValues.AsmRegisterValues instructionValues = staticValues.getValues(instruction);
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AsmProgramStaticRegisterValues.AsmRegisterValues instructionValues = staticValues.getValues(instruction);
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if (instructionValues.getY() != null && instructionValues.getY().equals(immValue)) {
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if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getY(), immValue)) {
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modified = remove(lineIt);
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modified = remove(lineIt);
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} else if (instructionValues.getA() != null && instructionValues.getA().equals(immValue)) {
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} else if (AsmProgramStaticRegisterValues.matchImm(instructionValues.getA(), immValue)) {
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getLog().append("Replacing instruction "+instruction+" with TAY");
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getLog().append("Replacing instruction "+instruction+" with TAY");
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instruction.setType(AsmInstructionSet.getInstructionType("tay", AsmAddressingMode.NON, null, false));
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instruction.setType(AsmInstructionSet.getInstructionType("tay", AsmAddressingMode.NON, null, false));
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instruction.setParameter(null);
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instruction.setParameter(null);
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@ -394,9 +394,8 @@ init_plot_tables: {
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bne b1
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bne b1
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lda #<0
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lda #<0
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sta yoffs
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sta yoffs
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lda #>0
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sta yoffs+1
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sta yoffs+1
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ldx #0
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tax
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b3:
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b3:
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txa
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txa
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and #7
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and #7
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@ -18292,6 +18292,8 @@ Removing instruction lda yd
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Removing instruction lda yd
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Removing instruction lda yd
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Removing instruction lda yd
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Removing instruction lda yd
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Removing instruction ldy #0
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Removing instruction ldy #0
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Removing instruction lda #>0
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Replacing instruction ldx #0 with TAX
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Replacing instruction lda #0 with TYA
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Replacing instruction lda #0 with TYA
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Succesful ASM optimization Pass5UnnecesaryLoadElimination
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Succesful ASM optimization Pass5UnnecesaryLoadElimination
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ASSEMBLER
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ASSEMBLER
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@ -19082,10 +19084,9 @@ init_plot_tables: {
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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lda #<0
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lda #<0
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sta yoffs
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sta yoffs
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lda #>0
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sta yoffs+1
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sta yoffs+1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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ldx #0
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tax
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jmp b3
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jmp b3
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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b3_from_b4:
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b3_from_b4:
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@ -20024,10 +20025,9 @@ init_plot_tables: {
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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lda #<0
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lda #<0
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sta yoffs
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sta yoffs
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lda #>0
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sta yoffs+1
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sta yoffs+1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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ldx #0
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tax
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jmp b3
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jmp b3
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
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//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
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@ -20922,10 +20922,9 @@ init_plot_tables: {
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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lda #<0
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lda #<0
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sta yoffs
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sta yoffs
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lda #>0
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sta yoffs+1
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sta yoffs+1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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ldx #0
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tax
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jmp b3
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jmp b3
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
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//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
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@ -21769,10 +21768,9 @@ init_plot_tables: {
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
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lda #<0
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lda #<0
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sta yoffs
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sta yoffs
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lda #>0
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sta yoffs+1
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sta yoffs+1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
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ldx #0
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tax
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
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//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
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//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
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//SEG320 [171] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
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//SEG320 [171] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
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@ -22961,10 +22959,9 @@ init_plot_tables: {
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|||||||
//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
//SEG316 [171] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
//SEG317 [171] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
//SEG318 [171] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
||||||
//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
//SEG319 [171] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
||||||
//SEG320 [171] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
|
//SEG320 [171] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
|
||||||
|
@ -118,9 +118,8 @@ init_plot_tables: {
|
|||||||
bne b1
|
bne b1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
ldx #0
|
tax
|
||||||
b3:
|
b3:
|
||||||
txa
|
txa
|
||||||
and #7
|
and #7
|
||||||
|
@ -6849,6 +6849,8 @@ init_screen: {
|
|||||||
|
|
||||||
Removing instruction lda #0
|
Removing instruction lda #0
|
||||||
Removing instruction ldy #0
|
Removing instruction ldy #0
|
||||||
|
Removing instruction lda #>0
|
||||||
|
Replacing instruction ldx #0 with TAX
|
||||||
Replacing instruction lda #0 with TYA
|
Replacing instruction lda #0 with TYA
|
||||||
Succesful ASM optimization Pass5UnnecesaryLoadElimination
|
Succesful ASM optimization Pass5UnnecesaryLoadElimination
|
||||||
ASSEMBLER
|
ASSEMBLER
|
||||||
@ -7073,10 +7075,9 @@ init_plot_tables: {
|
|||||||
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
jmp b3
|
jmp b3
|
||||||
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
||||||
b3_from_b4:
|
b3_from_b4:
|
||||||
@ -7441,10 +7442,9 @@ init_plot_tables: {
|
|||||||
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
jmp b3
|
jmp b3
|
||||||
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
||||||
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
||||||
@ -7790,10 +7790,9 @@ init_plot_tables: {
|
|||||||
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
jmp b3
|
jmp b3
|
||||||
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
||||||
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
||||||
@ -8117,10 +8116,9 @@ init_plot_tables: {
|
|||||||
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
||||||
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
||||||
//SEG82 [47] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
|
//SEG82 [47] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
|
||||||
@ -8583,10 +8581,9 @@ init_plot_tables: {
|
|||||||
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
//SEG78 [47] phi (byte*) init_plot_tables::yoffs#2 = ((byte*))(byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#0] -- zpptrby1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta yoffs
|
sta yoffs
|
||||||
lda #>0
|
|
||||||
sta yoffs+1
|
sta yoffs+1
|
||||||
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
//SEG79 [47] phi (byte) init_plot_tables::y#2 = (byte/signed byte/word/signed word) 0 [phi:init_plot_tables::@2->init_plot_tables::@3#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
//SEG80 [47] phi from init_plot_tables::@4 to init_plot_tables::@3 [phi:init_plot_tables::@4->init_plot_tables::@3]
|
||||||
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
//SEG81 [47] phi (byte*) init_plot_tables::yoffs#2 = (byte*) init_plot_tables::yoffs#4 [phi:init_plot_tables::@4->init_plot_tables::@3#0] -- register_copy
|
||||||
//SEG82 [47] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
|
//SEG82 [47] phi (byte) init_plot_tables::y#2 = (byte) init_plot_tables::y#1 [phi:init_plot_tables::@4->init_plot_tables::@3#1] -- register_copy
|
||||||
|
@ -6,9 +6,8 @@ main: {
|
|||||||
.label w = 2
|
.label w = 2
|
||||||
lda #<0
|
lda #<0
|
||||||
sta w
|
sta w
|
||||||
lda #>0
|
|
||||||
sta w+1
|
sta w+1
|
||||||
ldx #0
|
tax
|
||||||
b1:
|
b1:
|
||||||
txa
|
txa
|
||||||
clc
|
clc
|
||||||
|
@ -635,6 +635,62 @@ main: {
|
|||||||
rts
|
rts
|
||||||
}
|
}
|
||||||
|
|
||||||
|
Removing instruction lda #>0
|
||||||
|
Replacing instruction ldx #0 with TAX
|
||||||
|
Succesful ASM optimization Pass5UnnecesaryLoadElimination
|
||||||
|
ASSEMBLER
|
||||||
|
//SEG0 Basic Upstart
|
||||||
|
.pc = $801 "Basic"
|
||||||
|
:BasicUpstart(main)
|
||||||
|
.pc = $80d "Program"
|
||||||
|
//SEG1 Global Constants & labels
|
||||||
|
//SEG2 @begin
|
||||||
|
bbegin:
|
||||||
|
//SEG3 @1
|
||||||
|
b1:
|
||||||
|
//SEG4 [0] call main param-assignment [ ] ( )
|
||||||
|
//SEG5 [1] phi from @1 to main [phi:@1->main]
|
||||||
|
main_from_b1:
|
||||||
|
jsr main
|
||||||
|
//SEG6 @end
|
||||||
|
bend:
|
||||||
|
//SEG7 main
|
||||||
|
main: {
|
||||||
|
.label w = 2
|
||||||
|
//SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
|
||||||
|
b1_from_main:
|
||||||
|
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
||||||
|
lda #<0
|
||||||
|
sta w
|
||||||
|
sta w+1
|
||||||
|
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
||||||
|
tax
|
||||||
|
jmp b1
|
||||||
|
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
||||||
|
b1_from_b1:
|
||||||
|
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
||||||
|
//SEG13 [2] phi (byte) main::i#1 = (byte) main::j#1 [phi:main::@1->main::@1#1] -- register_copy
|
||||||
|
//SEG14 main::@1
|
||||||
|
b1:
|
||||||
|
//SEG15 [3] (word) main::w#1 ← (word) main::w#2 + (byte) main::i#1 [ main::i#1 main::w#1 ] ( main:0 [ main::i#1 main::w#1 ] ) -- zpwo1=zpwo1_plus_xby
|
||||||
|
txa
|
||||||
|
clc
|
||||||
|
adc w
|
||||||
|
sta w
|
||||||
|
bcc !+
|
||||||
|
inc w+1
|
||||||
|
!:
|
||||||
|
//SEG16 [4] (byte) main::j#1 ← ++ (byte) main::i#1 [ main::j#1 main::w#1 ] ( main:0 [ main::j#1 main::w#1 ] ) -- xby=_inc_xby
|
||||||
|
inx
|
||||||
|
//SEG17 [5] if((byte) main::j#1!=(byte/signed byte/word/signed word) 11) goto main::@1 [ main::j#1 main::w#1 ] ( main:0 [ main::j#1 main::w#1 ] ) -- xby_neq_coby1_then_la1
|
||||||
|
cpx #$b
|
||||||
|
bne b1_from_b1
|
||||||
|
//SEG18 main::@return
|
||||||
|
breturn:
|
||||||
|
//SEG19 [6] return [ ] ( main:0 [ ] )
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
|
||||||
Replacing label b1_from_b1 with b1
|
Replacing label b1_from_b1 with b1
|
||||||
Removing instruction bbegin:
|
Removing instruction bbegin:
|
||||||
Removing instruction main_from_b1:
|
Removing instruction main_from_b1:
|
||||||
@ -662,10 +718,9 @@ main: {
|
|||||||
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta w
|
sta w
|
||||||
lda #>0
|
|
||||||
sta w+1
|
sta w+1
|
||||||
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
jmp b1
|
jmp b1
|
||||||
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
||||||
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
||||||
@ -715,10 +770,9 @@ main: {
|
|||||||
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta w
|
sta w
|
||||||
lda #>0
|
|
||||||
sta w+1
|
sta w+1
|
||||||
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
jmp b1
|
jmp b1
|
||||||
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
||||||
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
||||||
@ -764,10 +818,9 @@ main: {
|
|||||||
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta w
|
sta w
|
||||||
lda #>0
|
|
||||||
sta w+1
|
sta w+1
|
||||||
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
||||||
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
||||||
//SEG13 [2] phi (byte) main::i#1 = (byte) main::j#1 [phi:main::@1->main::@1#1] -- register_copy
|
//SEG13 [2] phi (byte) main::i#1 = (byte) main::j#1 [phi:main::@1->main::@1#1] -- register_copy
|
||||||
@ -828,10 +881,9 @@ main: {
|
|||||||
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
//SEG9 [2] phi (word) main::w#2 = ((word))(byte/signed byte/word/signed word) 0 [phi:main->main::@1#0] -- zpwo1=cowo1
|
||||||
lda #<0
|
lda #<0
|
||||||
sta w
|
sta w
|
||||||
lda #>0
|
|
||||||
sta w+1
|
sta w+1
|
||||||
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
//SEG10 [2] phi (byte) main::i#1 = (byte/signed byte/word/signed word) 0 [phi:main->main::@1#1] -- xby=coby1
|
||||||
ldx #0
|
tax
|
||||||
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
//SEG11 [2] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
||||||
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
//SEG12 [2] phi (word) main::w#2 = (word) main::w#1 [phi:main::@1->main::@1#0] -- register_copy
|
||||||
//SEG13 [2] phi (byte) main::i#1 = (byte) main::j#1 [phi:main::@1->main::@1#1] -- register_copy
|
//SEG13 [2] phi (byte) main::i#1 = (byte) main::j#1 [phi:main::@1->main::@1#1] -- register_copy
|
||||||
|
Loading…
Reference in New Issue
Block a user