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Code Issues Projects Releases Wiki Activity

Implemented register(A/X/Y) keyword for allocating variables to specific register. Closes #70

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This commit is contained in:
jespergravgaard 2018-01-30 22:18:49 +01:00
parent 7e268c5b4f
commit 63f6620246
14 changed files with 818 additions and 881 deletions
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10
src/main/java/dk/camelot64/kickc/parser/KickC.g4
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@ -30,14 +30,10 @@ parameterListDecl
: parameterDecl (',' parameterDecl)* ;
parameterDecl
: directives? typeDecl NAME ;
: directive* typeDecl directive* NAME ;
declVar
: directives? typeDecl directives? NAME ('=' expr)? ';'
;
directives
: directive+
: directive* typeDecl directive* NAME ('=' expr)? ';'
;
directive
@ -63,7 +59,7 @@ stmt
;
forDeclaration
: directives? typeDecl? NAME ('=' expr)? #forDecl
: directive* typeDecl? directive* NAME ('=' expr)? #forDecl
;
forIteration

12
src/main/java/dk/camelot64/kickc/parser/KickCBaseListener.java
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@ -131,18 +131,6 @@ public class KickCBaseListener implements KickCListener {
* <p>The default implementation does nothing.</p>
*/
@Override public void exitDeclVar(KickCParser.DeclVarContext ctx) { }
/**
* {@inheritDoc}
*
* <p>The default implementation does nothing.</p>
*/
@Override public void enterDirectives(KickCParser.DirectivesContext ctx) { }
/**
* {@inheritDoc}
*
* <p>The default implementation does nothing.</p>
*/
@Override public void exitDirectives(KickCParser.DirectivesContext ctx) { }
/**
* {@inheritDoc}
*

7
src/main/java/dk/camelot64/kickc/parser/KickCBaseVisitor.java
View File

@ -81,13 +81,6 @@ public class KickCBaseVisitor<T> extends AbstractParseTreeVisitor<T> implements
* {@link #visitChildren} on {@code ctx}.</p>
*/
@Override public T visitDeclVar(KickCParser.DeclVarContext ctx) { return visitChildren(ctx); }
/**
* {@inheritDoc}
*
* <p>The default implementation returns the result of calling
* {@link #visitChildren} on {@code ctx}.</p>
*/
@Override public T visitDirectives(KickCParser.DirectivesContext ctx) { return visitChildren(ctx); }
/**
* {@inheritDoc}
*

10
src/main/java/dk/camelot64/kickc/parser/KickCListener.java
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@ -111,16 +111,6 @@ public interface KickCListener extends ParseTreeListener {
* @param ctx the parse tree
*/
void exitDeclVar(KickCParser.DeclVarContext ctx);
/**
* Enter a parse tree produced by {@link KickCParser#directives}.
* @param ctx the parse tree
*/
void enterDirectives(KickCParser.DirectivesContext ctx);
/**
* Exit a parse tree produced by {@link KickCParser#directives}.
* @param ctx the parse tree
*/
void exitDirectives(KickCParser.DirectivesContext ctx);
/**
* Enter a parse tree produced by the {@code directiveConst}
* labeled alternative in {@link KickCParser#directive}.

1120
src/main/java/dk/camelot64/kickc/parser/KickCParser.java
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File diff suppressed because it is too large Load Diff

6
src/main/java/dk/camelot64/kickc/parser/KickCVisitor.java
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@ -72,12 +72,6 @@ public interface KickCVisitor<T> extends ParseTreeVisitor<T> {
* @return the visitor result
*/
T visitDeclVar(KickCParser.DeclVarContext ctx);
/**
* Visit a parse tree produced by {@link KickCParser#directives}.
* @param ctx the parse tree
* @return the visitor result
*/
T visitDirectives(KickCParser.DirectivesContext ctx);
/**
* Visit a parse tree produced by the {@code directiveConst}
* labeled alternative in {@link KickCParser#directive}.

71
src/main/java/dk/camelot64/kickc/passes/Pass0GenerateStatementSequence.java
View File

@ -9,7 +9,6 @@ import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.tree.TerminalNode;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Stack;
@ -126,6 +125,8 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
public Variable visitParameterDecl(KickCParser.ParameterDeclContext ctx) {
SymbolType type = (SymbolType) this.visit(ctx.typeDecl());
VariableUnversioned param = new VariableUnversioned(ctx.NAME().getText(), getCurrentSymbols(), type);
// Add directives
addDirectives(type, param, ctx.directive());
return param;
}
@ -140,31 +141,8 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
SymbolType type = (SymbolType) visit(ctx.typeDecl());
String varName = ctx.NAME().getText();
VariableUnversioned lValue = getCurrentSymbols().addVariable(varName, type);
List<Directive> directives = new ArrayList<>();
for(KickCParser.DirectivesContext directivesContext : ctx.directives()) {
directives.addAll((Collection<? extends Directive>) this.visit(directivesContext));
}
for(Directive directive : directives) {
if(directive instanceof DirectiveConst) {
lValue.setDeclaredConstant(true);
} else if(directive instanceof DirectiveAlign) {
if(type instanceof SymbolTypeArray || type.equals(SymbolType.STRING)) {
lValue.setDeclaredAlignment(((DirectiveAlign) directive).getAlignment());
} else {
throw new CompileError("Error! Cannot align variable that is not a string or an array " + lValue.toString(program));
}
} else if(directive instanceof DirectiveRegister) {
DirectiveRegister directiveRegister = (DirectiveRegister) directive;
Registers.Register register = Registers.getRegister(directiveRegister.getName());
if(register==null) {
throw new CompileError("Error! Unknown register " + directiveRegister.getName());
}
lValue.setDeclaredRegister(register);
} else {
throw new CompileError("Unknown directive " + directive);
}
}
// Add directives
addDirectives(type, lValue, ctx.directive());
// Array / String variables are implicitly constant
if(type instanceof SymbolTypeArray || type.equals(SymbolType.STRING)) {
lValue.setDeclaredConstant(true);
@ -185,13 +163,38 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
return null;
}
@Override
public List<Directive> visitDirectives(KickCParser.DirectivesContext ctx) {
ArrayList<Directive> directives = new ArrayList<>();
for(KickCParser.DirectiveContext directiveContext : ctx.directive()) {
/**
* Add declared directives to an lValue (typically a variable).
*
* @param type The type of the lValue
* @param lValue The lValue
* @param directivesCtx The directives to add
*/
private void addDirectives(SymbolType type, SymbolVariable lValue, List<KickCParser.DirectiveContext> directivesCtx) {
List<Directive> directives = new ArrayList<>();
for(KickCParser.DirectiveContext directiveContext : directivesCtx) {
directives.add((Directive) this.visit(directiveContext));
}
return directives;
for(Directive directive : directives) {
if(directive instanceof DirectiveConst) {
lValue.setDeclaredConstant(true);
} else if(directive instanceof DirectiveAlign) {
if(type instanceof SymbolTypeArray || type.equals(SymbolType.STRING)) {
lValue.setDeclaredAlignment(((DirectiveAlign) directive).getAlignment());
} else {
throw new CompileError("Error! Cannot align variable that is not a string or an array " + lValue.toString(program));
}
} else if(directive instanceof DirectiveRegister) {
DirectiveRegister directiveRegister = (DirectiveRegister) directive;
Registers.Register register = Registers.getRegister(directiveRegister.getName());
if(register == null) {
throw new CompileError("Error! Unknown register " + directiveRegister.getName());
}
lValue.setDeclaredRegister(register);
} else {
throw new CompileError("Unknown directive " + directive);
}
}
}
@Override
@ -328,9 +331,13 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
if(forDeclCtx.typeDecl() != null) {
SymbolType type = (SymbolType) visit(forDeclCtx.typeDecl());
lValue = getCurrentSymbols().addVariable(varName, type);
// Add directives
addDirectives(type, lValue, forDeclCtx.directive());
} else {
lValue = getCurrentSymbols().getVariable(varName);
}
KickCParser.ExprContext initializer = forDeclCtx.expr();
if(initializer != null) {
addInitialAssignment(initializer, lValue);
@ -369,6 +376,8 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
if(forDeclCtx.typeDecl() != null) {
SymbolType type = (SymbolType) visit(forDeclCtx.typeDecl());
lValue = getCurrentSymbols().addVariable(varName, type);
// Add directives
addDirectives(type, lValue, forDeclCtx.directive());
} else {
lValue = getCurrentSymbols().getVariable(varName);
}

18
src/main/java/dk/camelot64/kickc/passes/Pass4RegisterUpliftPotentialInitialize.java
View File

@ -21,6 +21,23 @@ public class Pass4RegisterUpliftPotentialInitialize extends Pass2Base {
LiveRangeEquivalenceClassSet liveRangeEquivalenceClassSet = getProgram().getLiveRangeEquivalenceClassSet();
RegisterPotentials registerPotentials = new RegisterPotentials();
for(LiveRangeEquivalenceClass equivalenceClass : liveRangeEquivalenceClassSet.getEquivalenceClasses()) {
Registers.Register declaredRegister = null;
for(VariableRef varRef : equivalenceClass.getVariables()) {
Variable variable = getProgram().getScope().getVariable(varRef);
if(variable.getDeclaredRegister() != null) {
if(declaredRegister != null && !declaredRegister.equals(variable.getDeclaredRegister())) {
throw new CompileError("Equivalence class has variables with different declared registers \n" +
" - equivalence class: " + equivalenceClass.toString(true) + "\n" +
" - one register: " + declaredRegister.toString() + "\n" +
" - other register: " + variable.getDeclaredRegister().toString()
);
}
declaredRegister = variable.getDeclaredRegister();
}
}
if(declaredRegister != null) {
registerPotentials.setPotentialRegisters(equivalenceClass, Arrays.asList(declaredRegister));
} else {
Registers.Register defaultRegister = equivalenceClass.getRegister();
Registers.RegisterType registerType = defaultRegister.getType();
if(registerType.equals(Registers.RegisterType.ZP_BYTE)) {
@ -34,6 +51,7 @@ public class Pass4RegisterUpliftPotentialInitialize extends Pass2Base {
registerPotentials.setPotentialRegisters(equivalenceClass, Arrays.asList(defaultRegister));
}
}
}
getProgram().setRegisterPotentials(registerPotentials);
}

37
src/main/java/dk/camelot64/kickc/passes/Pass4RegisterUpliftPotentialRegisterAnalysis.java
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@ -20,43 +20,6 @@ public class Pass4RegisterUpliftPotentialRegisterAnalysis extends Pass2Base {
super(program);
}
/**
* Get all variables referenced (or assigned) in a statement.
*
* @param statement The statement
* @return All variables referenced (or assigned) in the statement
*/
public static Set<VariableRef> getReferencedVars(Statement statement) {
Set<VariableRef> referenced = new LinkedHashSet<>();
if(statement instanceof StatementAssignment) {
addReferenced(referenced, ((StatementAssignment) statement).getlValue());
addReferenced(referenced, ((StatementAssignment) statement).getrValue1());
addReferenced(referenced, ((StatementAssignment) statement).getrValue2());
} else if(statement instanceof StatementPhiBlock) {
for(StatementPhiBlock.PhiVariable phiVariable : ((StatementPhiBlock) statement).getPhiVariables()) {
addReferenced(referenced, phiVariable.getVariable());
for(StatementPhiBlock.PhiRValue phiRValue : phiVariable.getValues()) {
addReferenced(referenced, phiRValue.getrValue());
}
}
} else if(statement instanceof StatementConditionalJump) {
addReferenced(referenced, ((StatementConditionalJump) statement).getrValue1());
addReferenced(referenced, ((StatementConditionalJump) statement).getrValue2());
}
return referenced;
}
private static void addReferenced(Set<VariableRef> referenced, RValue rValue) {
if(rValue instanceof VariableRef) {
referenced.add((VariableRef) rValue);
} else if(rValue instanceof PointerDereferenceSimple) {
addReferenced(referenced, ((PointerDereferenceSimple) rValue).getPointer());
} else if(rValue instanceof PointerDereferenceIndexed) {
addReferenced(referenced, ((PointerDereferenceIndexed) rValue).getPointer());
addReferenced(referenced, ((PointerDereferenceIndexed) rValue).getIndex());
}
}
/**
* Get all variables assigned a value in a statement
*

17
src/main/java/dk/camelot64/kickc/passes/Pass4RegistersFinalize.java
View File

@ -23,6 +23,23 @@ public class Pass4RegistersFinalize extends Pass2Base {
public void allocate(boolean reallocateZp) {
LiveRangeEquivalenceClassSet liveRangeEquivalenceClassSet = getProgram().getLiveRangeEquivalenceClassSet();
for(LiveRangeEquivalenceClass equivalenceClass : liveRangeEquivalenceClassSet.getEquivalenceClasses()) {
for(VariableRef variableRef : equivalenceClass.getVariables()) {
Variable variable = getProgram().getScope().getVariable(variableRef);
if(variable.getDeclaredRegister()!=null) {
if(equivalenceClass.getRegister()!=null && !variable.getDeclaredRegister().equals(equivalenceClass.getRegister())) {
throw new CompileError("Equivalence class has variables with different declared registers \n" +
" - equivalence class: " + equivalenceClass.toString(true) + "\n" +
" - one register: " + equivalenceClass.getRegister().toString() + "\n" +
" - other register: " + variable.getDeclaredRegister().toString()
);
}
equivalenceClass.setRegister(variable.getDeclaredRegister());
}
}
}
if(reallocateZp) {
reallocateZpRegisters(liveRangeEquivalenceClassSet);
}

4
src/test/java/dk/camelot64/kickc/test/kc/var-register.kc
View File

@ -1,7 +1,7 @@
void main() {
for( register(X) byte x: 0..100 ) {
for( register(Y) byte x: 0..100 ) {
for( byte y: 0..100 ) {
for( byte a: 0..100 ) {
register(A) byte val1 = a+x;
@ -11,7 +11,7 @@ void main() {
}
}
void print(byte idx, byte val) {
void print(register(X) byte idx, byte val) {
byte* SCREEN = $0400;
SCREEN[idx] = val;
}

35
src/test/java/dk/camelot64/kickc/test/ref/var-register.asm
View File

@ -3,39 +3,32 @@
.pc = $80d "Program"
jsr main
main: {
.label y = 3
.label x = 2
lda #0
sta x
.label a = 2
ldy #0
b1:
lda #0
sta y
b2:
ldx #0
b2:
lda #0
sta a
b3:
txa
tya
clc
adc x
tay
adc a
jsr print
inc a
lda a
cmp #$65
bne b3
inx
cpx #$65
bne b3
inc y
lda y
cmp #$65
bne b2
inc x
lda x
cmp #$65
iny
cpy #$65
bne b1
rts
}
print: {
.const SCREEN = $400
.label idx = 3
tya
ldy idx
sta SCREEN,y
sta SCREEN,x
rts
}

293
src/test/java/dk/camelot64/kickc/test/ref/var-register.log
View File

@ -2,7 +2,7 @@ PARSING src/test/java/dk/camelot64/kickc/test/kc/var-register.kc
void main() {
for( register(X) byte x: 0..100 ) {
for( register(Y) byte x: 0..100 ) {
for( byte y: 0..100 ) {
for( byte a: 0..100 ) {
register(A) byte val1 = a+x;
@ -12,7 +12,7 @@ void main() {
}
}
void print(byte idx, byte val) {
void print(register(X) byte idx, byte val) {
byte* SCREEN = $0400;
SCREEN[idx] = val;
}
@ -61,12 +61,12 @@ SYMBOLS
(label) main::@return
(byte) main::a
(byte) main::val1 !reg byte a
(byte) main::x
(byte) main::x !reg byte y
(byte) main::y
(void()) print((byte) print::idx , (byte) print::val)
(label) print::@return
(byte*) print::SCREEN
(byte) print::idx
(byte) print::idx !reg byte x
(byte) print::val
Promoting word/signed word/dword/signed dword to byte* in print::SCREEN ← ((byte*)) 1024
@ -217,15 +217,15 @@ SYMBOL TABLE SSA
(byte) main::a#3
(byte) main::val1 !reg byte a
(byte) main::val1#0 !reg byte a
(byte) main::x
(byte) main::x#0
(byte) main::x#1
(byte) main::x#2
(byte) main::x#3
(byte) main::x#4
(byte) main::x#5
(byte) main::x#6
(byte) main::x#7
(byte) main::x !reg byte y
(byte) main::x#0 !reg byte y
(byte) main::x#1 !reg byte y
(byte) main::x#2 !reg byte y
(byte) main::x#3 !reg byte y
(byte) main::x#4 !reg byte y
(byte) main::x#5 !reg byte y
(byte) main::x#6 !reg byte y
(byte) main::x#7 !reg byte y
(byte) main::y
(byte) main::y#0
(byte) main::y#1
@ -237,9 +237,9 @@ SYMBOL TABLE SSA
(label) print::@return
(byte*) print::SCREEN
(byte*) print::SCREEN#0
(byte) print::idx
(byte) print::idx#0
(byte) print::idx#1
(byte) print::idx !reg byte x
(byte) print::idx#0 !reg byte x
(byte) print::idx#1 !reg byte x
(byte) print::val
(byte) print::val#0
(byte) print::val#1
@ -431,16 +431,16 @@ VARIABLE REGISTER WEIGHTS
(byte) main::a#2 600.5999999999999
(byte) main::val1 !reg byte a
(byte) main::val1#0 !reg byte a 1001.0
(byte) main::x
(byte) main::x#1 16.5
(byte) main::x#7 93.0
(byte) main::x !reg byte y
(byte) main::x#1 !reg byte y 16.5
(byte) main::x#7 !reg byte y 93.0
(byte) main::y
(byte) main::y#1 151.5
(byte) main::y#4 150.375
(void()) print((byte) print::idx , (byte) print::val)
(byte*) print::SCREEN
(byte) print::idx
(byte) print::idx#0 501.5
(byte) print::idx !reg byte x
(byte) print::idx#0 !reg byte x 501.5
(byte) print::val
(byte) print::val#0 1003.0
@ -458,12 +458,9 @@ Complete equivalence classes
[ main::val1#0 ]
[ print::idx#0 ]
[ print::val#0 ]
Allocated zp ZP_BYTE:2 [ main::x#7 main::x#1 ]
Allocated zp ZP_BYTE:3 [ main::y#4 main::y#1 ]
Allocated zp ZP_BYTE:4 [ main::a#2 main::a#1 ]
Allocated zp ZP_BYTE:5 [ main::val1#0 ]
Allocated zp ZP_BYTE:6 [ print::idx#0 ]
Allocated zp ZP_BYTE:7 [ print::val#0 ]
Allocated zp ZP_BYTE:2 [ main::y#4 main::y#1 ]
Allocated zp ZP_BYTE:3 [ main::a#2 main::a#1 ]
Allocated zp ZP_BYTE:4 [ print::val#0 ]
INITIAL ASM
//SEG0 Basic Upstart
@ -489,15 +486,12 @@ bend_from_b2:
bend:
//SEG9 main
main: {
.label val1 = 5
.label a = 4
.label y = 3
.label x = 2
.label a = 3
.label y = 2
//SEG10 [5] phi from main to main::@1 [phi:main->main::@1]
b1_from_main:
//SEG11 [5] phi (byte) main::x#7 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta x
//SEG11 [5] phi (byte) main::x#7 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuyy=vbuc1
ldy #0
jmp b1
//SEG12 [5] phi from main::@5 to main::@1 [phi:main::@5->main::@1]
b1_from_b5:
@ -529,16 +523,13 @@ main: {
jmp b3
//SEG24 main::@3
b3:
//SEG25 [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) -- vbuz1=vbuz2_plus_vbuz3
lda a
//SEG25 [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) -- vbuaa=vbuz1_plus_vbuyy
tya
clc
adc x
sta val1
//SEG26 [9] (byte) print::idx#0 ← (byte) main::y#4 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] ) -- vbuz1=vbuz2
lda y
sta print.idx
//SEG27 [10] (byte) print::val#0 ← (byte) main::val1#0 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] ) -- vbuz1=vbuz2
lda val1
adc a
//SEG26 [9] (byte) print::idx#0 ← (byte) main::y#4 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] ) -- vbuxx=vbuz1
ldx y
//SEG27 [10] (byte) print::val#0 ← (byte) main::val1#0 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] ) -- vbuz1=vbuaa
sta print.val
//SEG28 [11] call print param-assignment [ main::x#7 main::y#4 main::a#2 ] ( main:2 [ main::x#7 main::y#4 main::a#2 ] )
jsr print
@ -563,11 +554,10 @@ main: {
jmp b5
//SEG35 main::@5
b5:
//SEG36 [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuz1=_inc_vbuz1
inc x
//SEG37 [17] if((byte) main::x#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@1 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda x
cmp #$65
//SEG36 [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuyy=_inc_vbuyy
iny
//SEG37 [17] if((byte) main::x#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@1 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuyy_neq_vbuc1_then_la1
cpy #$65
bne b1_from_b5
jmp breturn
//SEG38 main::@return
@ -578,12 +568,10 @@ main: {
//SEG40 print
print: {
.const SCREEN = $400
.label idx = 6
.label val = 7
//SEG41 [19] *((const byte*) print::SCREEN#0 + (byte) print::idx#0) ← (byte) print::val#0 [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] ) -- pbuc1_derefidx_vbuz1=vbuz2
.label val = 4
//SEG41 [19] *((const byte*) print::SCREEN#0 + (byte) print::idx#0) ← (byte) print::val#0 [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] ) -- pbuc1_derefidx_vbuxx=vbuz1
lda val
ldy idx
sta SCREEN,y
sta SCREEN,x
jmp breturn
//SEG42 print::@return
breturn:
@ -592,28 +580,30 @@ print: {
}
REGISTER UPLIFT POTENTIAL REGISTERS
Potential registers zp ZP_BYTE:2 [ main::x#7 main::x#1 ] : zp ZP_BYTE:2 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:3 [ main::y#4 main::y#1 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:4 [ main::a#2 main::a#1 ] : zp ZP_BYTE:4 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:5 [ main::val1#0 ] : zp ZP_BYTE:5 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:6 [ print::idx#0 ] : zp ZP_BYTE:6 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:7 [ print::val#0 ] : zp ZP_BYTE:7 , reg byte a , reg byte x , reg byte y ,
Statement [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) always clobbers reg byte a
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::y#4 main::y#1 ]
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:3 [ main::a#2 main::a#1 ]
Statement [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) always clobbers reg byte y
Statement [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) always clobbers reg byte a
Statement [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) always clobbers reg byte y
Potential registers reg byte y [ main::x#7 main::x#1 ] : reg byte y ,
Potential registers zp ZP_BYTE:2 [ main::y#4 main::y#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y ,
Potential registers zp ZP_BYTE:3 [ main::a#2 main::a#1 ] : zp ZP_BYTE:3 , reg byte x , reg byte y ,
Potential registers reg byte a [ main::val1#0 ] : reg byte a ,
Potential registers reg byte x [ print::idx#0 ] : reg byte x ,
Potential registers zp ZP_BYTE:4 [ print::val#0 ] : zp ZP_BYTE:4 , reg byte a , reg byte x , reg byte y ,
REGISTER UPLIFT SCOPES
Uplift Scope [main] 2,102.1: zp ZP_BYTE:4 [ main::a#2 main::a#1 ] 1,001: zp ZP_BYTE:5 [ main::val1#0 ] 301.88: zp ZP_BYTE:3 [ main::y#4 main::y#1 ] 109.5: zp ZP_BYTE:2 [ main::x#7 main::x#1 ]
Uplift Scope [print] 1,003: zp ZP_BYTE:7 [ print::val#0 ] 501.5: zp ZP_BYTE:6 [ print::idx#0 ]
Uplift Scope [main] 2,102.1: zp ZP_BYTE:3 [ main::a#2 main::a#1 ] 1,001: reg byte a [ main::val1#0 ] 301.88: zp ZP_BYTE:2 [ main::y#4 main::y#1 ] 109.5: reg byte y [ main::x#7 main::x#1 ]
Uplift Scope [print] 1,003: zp ZP_BYTE:4 [ print::val#0 ] 501.5: reg byte x [ print::idx#0 ]
Uplift Scope []
Uplifting [main] best 47453 combination reg byte x [ main::a#2 main::a#1 ] reg byte y [ main::val1#0 ] zp ZP_BYTE:3 [ main::y#4 main::y#1 ] zp ZP_BYTE:2 [ main::x#7 main::x#1 ]
Uplifting [print] best 44452 combination reg byte y [ print::val#0 ] zp ZP_BYTE:6 [ print::idx#0 ]
Uplifting [] best 44452 combination
Attempting to uplift remaining variables inzp ZP_BYTE:6 [ print::idx#0 ]
Uplifting [print] best 44452 combination zp ZP_BYTE:6 [ print::idx#0 ]
Attempting to uplift remaining variables inzp ZP_BYTE:3 [ main::y#4 main::y#1 ]
Uplifting [main] best 44452 combination zp ZP_BYTE:3 [ main::y#4 main::y#1 ]
Attempting to uplift remaining variables inzp ZP_BYTE:2 [ main::x#7 main::x#1 ]
Uplifting [main] best 44452 combination zp ZP_BYTE:2 [ main::x#7 main::x#1 ]
Coalescing zero page register [ zp ZP_BYTE:3 [ main::y#4 main::y#1 ] ] with [ zp ZP_BYTE:6 [ print::idx#0 ] ]
Uplifting [main] best 47460 combination zp ZP_BYTE:3 [ main::a#2 main::a#1 ] reg byte a [ main::val1#0 ] reg byte x [ main::y#4 main::y#1 ] reg byte y [ main::x#7 main::x#1 ]
Uplifting [print] best 44457 combination reg byte a [ print::val#0 ] reg byte x [ print::idx#0 ]
Uplifting [] best 44457 combination
Attempting to uplift remaining variables inzp ZP_BYTE:3 [ main::a#2 main::a#1 ]
Uplifting [main] best 44457 combination zp ZP_BYTE:3 [ main::a#2 main::a#1 ]
Allocated (was zp ZP_BYTE:3) zp ZP_BYTE:2 [ main::a#2 main::a#1 ]
ASSEMBLER BEFORE OPTIMIZATION
//SEG0 Basic Upstart
@ -639,13 +629,11 @@ bend_from_b2:
bend:
//SEG9 main
main: {
.label y = 3
.label x = 2
.label a = 2
//SEG10 [5] phi from main to main::@1 [phi:main->main::@1]
b1_from_main:
//SEG11 [5] phi (byte) main::x#7 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta x
//SEG11 [5] phi (byte) main::x#7 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuyy=vbuc1
ldy #0
jmp b1
//SEG12 [5] phi from main::@5 to main::@1 [phi:main::@5->main::@1]
b1_from_b5:
@ -655,9 +643,8 @@ main: {
b1:
//SEG15 [6] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
b2_from_b1:
//SEG16 [6] phi (byte) main::y#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuz1=vbuc1
lda #0
sta y
//SEG16 [6] phi (byte) main::y#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuxx=vbuc1
ldx #0
jmp b2
//SEG17 [6] phi from main::@4 to main::@2 [phi:main::@4->main::@2]
b2_from_b4:
@ -667,8 +654,9 @@ main: {
b2:
//SEG20 [7] phi from main::@2 to main::@3 [phi:main::@2->main::@3]
b3_from_b2:
//SEG21 [7] phi (byte) main::a#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@2->main::@3#0] -- vbuxx=vbuc1
ldx #0
//SEG21 [7] phi (byte) main::a#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@2->main::@3#0] -- vbuz1=vbuc1
lda #0
sta a
jmp b3
//SEG22 [7] phi from main::@7 to main::@3 [phi:main::@7->main::@3]
b3_from_b7:
@ -676,42 +664,40 @@ main: {
jmp b3
//SEG24 main::@3
b3:
//SEG25 [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) -- vbuyy=vbuxx_plus_vbuz1
txa
//SEG25 [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) -- vbuaa=vbuz1_plus_vbuyy
tya
clc
adc x
tay
adc a
//SEG26 [9] (byte) print::idx#0 ← (byte) main::y#4 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] )
// (byte) print::idx#0 = (byte) main::y#4 // register copy zp ZP_BYTE:3
// (byte) print::idx#0 = (byte) main::y#4 // register copy reg byte x
//SEG27 [10] (byte) print::val#0 ← (byte) main::val1#0 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] )
// (byte) print::val#0 = (byte) main::val1#0 // register copy reg byte y
// (byte) print::val#0 = (byte) main::val1#0 // register copy reg byte a
//SEG28 [11] call print param-assignment [ main::x#7 main::y#4 main::a#2 ] ( main:2 [ main::x#7 main::y#4 main::a#2 ] )
jsr print
jmp b7
//SEG29 main::@7
b7:
//SEG30 [12] (byte) main::a#1 ← ++ (byte) main::a#2 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuxx=_inc_vbuxx
inx
//SEG31 [13] if((byte) main::a#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@3 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuxx_neq_vbuc1_then_la1
cpx #$65
//SEG30 [12] (byte) main::a#1 ← ++ (byte) main::a#2 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuz1=_inc_vbuz1
inc a
//SEG31 [13] if((byte) main::a#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@3 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda a
cmp #$65
bne b3_from_b7
jmp b4
//SEG32 main::@4
b4:
//SEG33 [14] (byte) main::y#1 ← ++ (byte) main::y#4 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuz1=_inc_vbuz1
inc y
//SEG34 [15] if((byte) main::y#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@2 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda y
cmp #$65
//SEG33 [14] (byte) main::y#1 ← ++ (byte) main::y#4 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuxx=_inc_vbuxx
inx
//SEG34 [15] if((byte) main::y#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@2 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuxx_neq_vbuc1_then_la1
cpx #$65
bne b2_from_b4
jmp b5
//SEG35 main::@5
b5:
//SEG36 [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuz1=_inc_vbuz1
inc x
//SEG37 [17] if((byte) main::x#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@1 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda x
cmp #$65
//SEG36 [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuyy=_inc_vbuyy
iny
//SEG37 [17] if((byte) main::x#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@1 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuyy_neq_vbuc1_then_la1
cpy #$65
bne b1_from_b5
jmp breturn
//SEG38 main::@return
@ -722,11 +708,8 @@ main: {
//SEG40 print
print: {
.const SCREEN = $400
.label idx = 3
//SEG41 [19] *((const byte*) print::SCREEN#0 + (byte) print::idx#0) ← (byte) print::val#0 [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] ) -- pbuc1_derefidx_vbuz1=vbuyy
tya
ldy idx
sta SCREEN,y
//SEG41 [19] *((const byte*) print::SCREEN#0 + (byte) print::idx#0) ← (byte) print::val#0 [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] ) -- pbuc1_derefidx_vbuxx=vbuaa
sta SCREEN,x
jmp breturn
//SEG42 print::@return
breturn:
@ -786,34 +769,35 @@ FINAL SYMBOL TABLE
(label) main::@7
(label) main::@return
(byte) main::a
(byte) main::a#1 reg byte x 1501.5
(byte) main::a#2 reg byte x 600.5999999999999
(byte) main::a#1 a zp ZP_BYTE:2 1501.5
(byte) main::a#2 a zp ZP_BYTE:2 600.5999999999999
(byte) main::val1 !reg byte a
(byte) main::val1#0 !reg byte a reg byte y 1001.0
(byte) main::x
(byte) main::x#1 x zp ZP_BYTE:2 16.5
(byte) main::x#7 x zp ZP_BYTE:2 93.0
(byte) main::val1#0 !reg byte a 1001.0
(byte) main::x !reg byte y
(byte) main::x#1 !reg byte y 16.5
(byte) main::x#7 !reg byte y 93.0
(byte) main::y
(byte) main::y#1 y zp ZP_BYTE:3 151.5
(byte) main::y#4 y zp ZP_BYTE:3 150.375
(byte) main::y#1 reg byte x 151.5
(byte) main::y#4 reg byte x 150.375
(void()) print((byte) print::idx , (byte) print::val)
(label) print::@return
(byte*) print::SCREEN
(const byte*) print::SCREEN#0 SCREEN = ((byte*))(word/signed word/dword/signed dword) 1024
(byte) print::idx
(byte) print::idx#0 idx zp ZP_BYTE:3 501.5
(byte) print::idx !reg byte x
(byte) print::idx#0 !reg byte x 501.5
(byte) print::val
(byte) print::val#0 reg byte y 1003.0
(byte) print::val#0 reg byte a 1003.0
zp ZP_BYTE:2 [ main::x#7 main::x#1 ]
zp ZP_BYTE:3 [ main::y#4 main::y#1 print::idx#0 ]
reg byte x [ main::a#2 main::a#1 ]
reg byte y [ main::val1#0 ]
reg byte y [ print::val#0 ]
reg byte y [ main::x#7 main::x#1 ]
reg byte x [ main::y#4 main::y#1 ]
zp ZP_BYTE:2 [ main::a#2 main::a#1 ]
reg byte a [ main::val1#0 ]
reg byte x [ print::idx#0 ]
reg byte a [ print::val#0 ]
FINAL ASSEMBLER
Score: 25453
Score: 31458
//SEG0 Basic Upstart
.pc = $801 "Basic"
@ -830,61 +814,57 @@ Score: 25453
//SEG8 @end
//SEG9 main
main: {
.label y = 3
.label x = 2
.label a = 2
//SEG10 [5] phi from main to main::@1 [phi:main->main::@1]
//SEG11 [5] phi (byte) main::x#7 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta x
//SEG11 [5] phi (byte) main::x#7 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vbuyy=vbuc1
ldy #0
//SEG12 [5] phi from main::@5 to main::@1 [phi:main::@5->main::@1]
//SEG13 [5] phi (byte) main::x#7 = (byte) main::x#1 [phi:main::@5->main::@1#0] -- register_copy
//SEG14 main::@1
b1:
//SEG15 [6] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
//SEG16 [6] phi (byte) main::y#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuz1=vbuc1
lda #0
sta y
//SEG16 [6] phi (byte) main::y#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuxx=vbuc1
ldx #0
//SEG17 [6] phi from main::@4 to main::@2 [phi:main::@4->main::@2]
//SEG18 [6] phi (byte) main::y#4 = (byte) main::y#1 [phi:main::@4->main::@2#0] -- register_copy
//SEG19 main::@2
b2:
//SEG20 [7] phi from main::@2 to main::@3 [phi:main::@2->main::@3]
//SEG21 [7] phi (byte) main::a#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@2->main::@3#0] -- vbuxx=vbuc1
ldx #0
//SEG21 [7] phi (byte) main::a#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@2->main::@3#0] -- vbuz1=vbuc1
lda #0
sta a
//SEG22 [7] phi from main::@7 to main::@3 [phi:main::@7->main::@3]
//SEG23 [7] phi (byte) main::a#2 = (byte) main::a#1 [phi:main::@7->main::@3#0] -- register_copy
//SEG24 main::@3
b3:
//SEG25 [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) -- vbuyy=vbuxx_plus_vbuz1
txa
//SEG25 [8] (byte) main::val1#0 ← (byte) main::a#2 + (byte) main::x#7 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 ] ) -- vbuaa=vbuz1_plus_vbuyy
tya
clc
adc x
tay
adc a
//SEG26 [9] (byte) print::idx#0 ← (byte) main::y#4 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 main::val1#0 print::idx#0 ] )
// (byte) print::idx#0 = (byte) main::y#4 // register copy zp ZP_BYTE:3
// (byte) print::idx#0 = (byte) main::y#4 // register copy reg byte x
//SEG27 [10] (byte) print::val#0 ← (byte) main::val1#0 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] ( main:2 [ main::x#7 main::y#4 main::a#2 print::idx#0 print::val#0 ] )
// (byte) print::val#0 = (byte) main::val1#0 // register copy reg byte y
// (byte) print::val#0 = (byte) main::val1#0 // register copy reg byte a
//SEG28 [11] call print param-assignment [ main::x#7 main::y#4 main::a#2 ] ( main:2 [ main::x#7 main::y#4 main::a#2 ] )
jsr print
//SEG29 main::@7
//SEG30 [12] (byte) main::a#1 ← ++ (byte) main::a#2 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuxx=_inc_vbuxx
inx
//SEG31 [13] if((byte) main::a#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@3 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuxx_neq_vbuc1_then_la1
cpx #$65
//SEG30 [12] (byte) main::a#1 ← ++ (byte) main::a#2 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuz1=_inc_vbuz1
inc a
//SEG31 [13] if((byte) main::a#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@3 [ main::x#7 main::y#4 main::a#1 ] ( main:2 [ main::x#7 main::y#4 main::a#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda a
cmp #$65
bne b3
//SEG32 main::@4
//SEG33 [14] (byte) main::y#1 ← ++ (byte) main::y#4 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuz1=_inc_vbuz1
inc y
//SEG34 [15] if((byte) main::y#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@2 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda y
cmp #$65
//SEG33 [14] (byte) main::y#1 ← ++ (byte) main::y#4 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuxx=_inc_vbuxx
inx
//SEG34 [15] if((byte) main::y#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@2 [ main::x#7 main::y#1 ] ( main:2 [ main::x#7 main::y#1 ] ) -- vbuxx_neq_vbuc1_then_la1
cpx #$65
bne b2
//SEG35 main::@5
//SEG36 [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuz1=_inc_vbuz1
inc x
//SEG37 [17] if((byte) main::x#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@1 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuz1_neq_vbuc1_then_la1
lda x
cmp #$65
//SEG36 [16] (byte) main::x#1 ← ++ (byte) main::x#7 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuyy=_inc_vbuyy
iny
//SEG37 [17] if((byte) main::x#1!=(byte/signed byte/word/signed word/dword/signed dword) 101) goto main::@1 [ main::x#1 ] ( main:2 [ main::x#1 ] ) -- vbuyy_neq_vbuc1_then_la1
cpy #$65
bne b1
//SEG38 main::@return
//SEG39 [18] return [ ] ( main:2 [ ] )
@ -893,11 +873,8 @@ main: {
//SEG40 print
print: {
.const SCREEN = $400
.label idx = 3
//SEG41 [19] *((const byte*) print::SCREEN#0 + (byte) print::idx#0) ← (byte) print::val#0 [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] ) -- pbuc1_derefidx_vbuz1=vbuyy
tya
ldy idx
sta SCREEN,y
//SEG41 [19] *((const byte*) print::SCREEN#0 + (byte) print::idx#0) ← (byte) print::val#0 [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] ) -- pbuc1_derefidx_vbuxx=vbuaa
sta SCREEN,x
//SEG42 print::@return
//SEG43 [20] return [ ] ( main:2::print:11 [ main::x#7 main::y#4 main::a#2 ] )
rts

33
src/test/java/dk/camelot64/kickc/test/ref/var-register.sym
View File

@ -10,27 +10,28 @@
(label) main::@7
(label) main::@return
(byte) main::a
(byte) main::a#1 reg byte x 1501.5
(byte) main::a#2 reg byte x 600.5999999999999
(byte) main::a#1 a zp ZP_BYTE:2 1501.5
(byte) main::a#2 a zp ZP_BYTE:2 600.5999999999999
(byte) main::val1 !reg byte a
(byte) main::val1#0 !reg byte a reg byte y 1001.0
(byte) main::x
(byte) main::x#1 x zp ZP_BYTE:2 16.5
(byte) main::x#7 x zp ZP_BYTE:2 93.0
(byte) main::val1#0 !reg byte a 1001.0
(byte) main::x !reg byte y
(byte) main::x#1 !reg byte y 16.5
(byte) main::x#7 !reg byte y 93.0
(byte) main::y
(byte) main::y#1 y zp ZP_BYTE:3 151.5
(byte) main::y#4 y zp ZP_BYTE:3 150.375
(byte) main::y#1 reg byte x 151.5
(byte) main::y#4 reg byte x 150.375
(void()) print((byte) print::idx , (byte) print::val)
(label) print::@return
(byte*) print::SCREEN
(const byte*) print::SCREEN#0 SCREEN = ((byte*))(word/signed word/dword/signed dword) 1024
(byte) print::idx
(byte) print::idx#0 idx zp ZP_BYTE:3 501.5
(byte) print::idx !reg byte x
(byte) print::idx#0 !reg byte x 501.5
(byte) print::val
(byte) print::val#0 reg byte y 1003.0
(byte) print::val#0 reg byte a 1003.0
zp ZP_BYTE:2 [ main::x#7 main::x#1 ]
zp ZP_BYTE:3 [ main::y#4 main::y#1 print::idx#0 ]
reg byte x [ main::a#2 main::a#1 ]
reg byte y [ main::val1#0 ]
reg byte y [ print::val#0 ]
reg byte y [ main::x#7 main::x#1 ]
reg byte x [ main::y#4 main::y#1 ]
zp ZP_BYTE:2 [ main::a#2 main::a#1 ]
reg byte a [ main::val1#0 ]
reg byte x [ print::idx#0 ]
reg byte a [ print::val#0 ]