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remove traces of ** operator

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This commit is contained in:
Irmen de Jong 2023-03-22 00:51:58 +01:00
parent 69f9102f2d
commit cc81d6fe82
3 changed files with 2 additions and 13 deletions
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11
codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AugmentableAssignmentAsmGen.kt
View File

@ -307,7 +307,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
asmgen.assignExpressionToVariable(value, "P8ZP_SCRATCH_B1", DataType.UBYTE)
val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
when (operator) {
// note: ** (power) operator requires floats.
"+" -> asmgen.out(" clc | adc P8ZP_SCRATCH_B1")
"-" -> asmgen.out(" sec | sbc P8ZP_SCRATCH_B1")
"*" -> asmgen.out(" ldy P8ZP_SCRATCH_B1 | jsr math.multiply_bytes")
@ -344,7 +343,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
when (operator) {
// note: ** (power) operator requires floats.
"+" -> asmgen.out(" clc | adc $otherName")
"-" -> asmgen.out(" sec | sbc $otherName")
"*" -> asmgen.out(" ldy $otherName | jsr math.multiply_bytes")
@ -378,7 +376,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
private fun inplaceModification_byte_litval_to_pointer(pointervar: PtIdentifier, operator: String, value: Int) {
when (operator) {
// note: ** (power) operator requires floats.
"+" -> {
val sourceName = asmgen.loadByteFromPointerIntoA(pointervar)
asmgen.out(" clc | adc #$value")
@ -448,7 +445,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
// this should be the last resort for code generation for this,
// because the value is evaluated onto the eval stack (=slow).
when (operator) {
// note: ** (power) operator requires floats.
"+" -> {
asmgen.assignExpressionToRegister(value, RegisterOrPair.A)
asmgen.out(" clc | adc $name | sta $name")
@ -542,7 +538,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
private fun inplaceModification_byte_variable_to_variable(name: String, dt: DataType, operator: String, ident: PtIdentifier) {
val otherName = asmgen.asmVariableName(ident)
when (operator) {
// note: ** (power) operator requires floats.
"+" -> asmgen.out(" lda $name | clc | adc $otherName | sta $name")
"-" -> asmgen.out(" lda $name | sec | sbc $otherName | sta $name")
"*" -> asmgen.out(" lda $name | ldy $otherName | jsr math.multiply_bytes | sta $name")
@ -618,7 +613,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
private fun inplaceModification_byte_litval_to_variable(name: String, dt: DataType, operator: String, value: Int) {
when (operator) {
// note: ** (power) operator requires floats.
"+" -> asmgen.out(" lda $name | clc | adc #$value | sta $name")
"-" -> asmgen.out(" lda $name | sec | sbc #$value | sta $name")
"*" -> {
@ -795,7 +789,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
private fun inplaceModification_word_litval_to_variable(name: String, dt: DataType, operator: String, value: Int) {
when (operator) {
// note: ** (power) operator requires floats.
"+" -> {
when {
value==0 -> {}
@ -1062,7 +1055,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
in ByteDatatypes -> {
// the other variable is a BYTE type so optimize for that
when (operator) {
// note: ** (power) operator requires floats.
"+" -> {
if(valueDt==DataType.UBYTE)
asmgen.out("""
@ -1225,7 +1217,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
in WordDatatypes -> {
// the value is a proper 16-bit word, so use both bytes of it.
when (operator) {
// note: ** (power) operator requires floats.
"+" -> asmgen.out(" lda $name | clc | adc $otherName | sta $name | lda $name+1 | adc $otherName+1 | sta $name+1")
"-" -> asmgen.out(" lda $name | sec | sbc $otherName | sta $name | lda $name+1 | sbc $otherName+1 | sta $name+1")
"*" -> {
@ -1359,7 +1350,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
in ByteDatatypes -> {
// the other variable is a BYTE type so optimize for that
when (operator) {
// note: ** (power) operator requires floats.
"+" -> {
asmgen.assignExpressionToVariable(value, "P8ZP_SCRATCH_B1", valueDt)
if(valueDt==DataType.UBYTE)
@ -1485,7 +1475,6 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
in WordDatatypes -> {
// the value is a proper 16-bit word, so use both bytes of it.
when (operator) {
// note: ** (power) operator requires floats.
"+" -> {
asmgen.assignExpressionToRegister(value, RegisterOrPair.AY)
asmgen.out(" clc | adc $name | sta $name | tya | adc $name+1 | sta $name+1")

2
docs/source/libraries.rst
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@ -255,7 +255,7 @@ sin(x)
sqrt(x)
Floating point Square root.
To do the reverse, squaring a floating point number, just write ``x*x`` or ``x**2``.
To do the reverse, squaring a floating point number, just write ``x*x``.
tan(x)
Tangent.

2
docs/source/syntaxreference.rst
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@ -487,7 +487,7 @@ assignment: ``=``
Sets the target on the LHS (left hand side) of the operator to the value of the expression on the RHS (right hand side).
Note that an assignment sometimes is not possible or supported.
augmented assignment: ``+=`` ``-=`` ``*=`` ``/=`` ``**=`` ``&=`` ``|=`` ``^=`` ``<<=`` ``>>=``
augmented assignment: ``+=`` ``-=`` ``*=`` ``/=`` ``&=`` ``|=`` ``^=`` ``<<=`` ``>>=``
This is syntactic sugar; ``aa += xx`` is equivalent to ``aa = aa + xx``
postfix increment and decrement: ``++`` ``--``