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https://github.com/irmen/prog8.git
synced 2024-07-23 00:29:09 +00:00
refactor byte '==', '!=', '<' and '>' codegen
This commit is contained in:
Irmen de Jong
parent
bf23ad78e6
commit
38e40084f1
@ -403,6 +403,16 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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}
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private fun translateByteLessJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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fun code(sbcOperand: String) {
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asmgen.out("""
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sec
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sbc $sbcOperand
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bvc +
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eor #$80
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+ bpl $jumpIfFalseLabel""")
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}
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if(rightConstVal!=null) {
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if(leftConstVal!=null) {
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if(rightConstVal>=leftConstVal)
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@ -411,29 +421,27 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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} else {
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if (left is IdentifierReference) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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if(rightConstVal.number.toInt()!=0)
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asmgen.out("""
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sec
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sbc #${rightConstVal.number}
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bvc +
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eor #$80
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+ bpl $jumpIfFalseLabel""")
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return if(rightConstVal.number.toInt()!=0)
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code("#${rightConstVal.number}")
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else
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asmgen.out(" bpl $jumpIfFalseLabel")
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return
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}
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}
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}
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if(byteJumpForSimpleRightOperands(left, right, ::code))
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return
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asmgen.assignExpressionToVariable(right, "P8ZP_SCRATCH_B1", DataType.UBYTE, null)
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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return code("P8ZP_SCRATCH_B1")
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}
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private fun byteJumpForSimpleRightOperands(left: Expression, right: Expression, code: (String)->Unit): Boolean {
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if(right is IdentifierReference) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out("""
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sec
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sbc ${asmgen.asmVariableName(right)}
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bvc +
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eor #$80
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+ bpl $jumpIfFalseLabel""")
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return
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code(asmgen.asmVariableName(right))
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return true
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}
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var memread = right as? DirectMemoryRead
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if(memread==null && right is TypecastExpression)
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@ -442,24 +450,11 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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val address = memread.addressExpression as? NumericLiteralValue
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if(address!=null) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out("""
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sec
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sbc ${address.number.toHex()}
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bvc +
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eor #$80
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+ bpl $jumpIfFalseLabel""")
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return
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code(address.number.toHex())
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return true
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}
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}
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asmgen.assignExpressionToVariable(right, "P8ZP_SCRATCH_B1", DataType.UBYTE, null)
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out("""
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sec
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sbc P8ZP_SCRATCH_B1
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bvc +
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eor #$80
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+ bpl $jumpIfFalseLabel""")
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return false
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}
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private fun translateUwordLessJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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@ -565,6 +560,18 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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}
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private fun translateByteGreaterJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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fun code(sbcOperand: String) {
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asmgen.out("""
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clc
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sbc $sbcOperand
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bvc +
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eor #$80
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+ bpl +
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bmi $jumpIfFalseLabel
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+""")
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}
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if(rightConstVal!=null) {
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if(leftConstVal!=null) {
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if(rightConstVal<=leftConstVal)
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@ -573,63 +580,20 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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} else {
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if (left is IdentifierReference) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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if(rightConstVal.number.toInt()!=0)
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asmgen.out("""
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clc
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sbc #${rightConstVal.number}
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bvc +
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eor #$80
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+ bpl +
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bmi $jumpIfFalseLabel
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+""")
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return if(rightConstVal.number.toInt()!=0)
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code("#${rightConstVal.number}")
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else
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asmgen.out(" bmi $jumpIfFalseLabel | beq $jumpIfFalseLabel")
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return
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}
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}
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}
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if(right is IdentifierReference) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out("""
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clc
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sbc ${asmgen.asmVariableName(right)}
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bvc +
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eor #$80
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+ bpl +
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bmi $jumpIfFalseLabel
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+""")
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if(byteJumpForSimpleRightOperands(left, right, ::code))
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return
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}
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var memread = right as? DirectMemoryRead
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if(memread==null && right is TypecastExpression)
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memread = right.expression as? DirectMemoryRead
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if(memread!=null) {
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val address = memread.addressExpression as? NumericLiteralValue
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if(address!=null) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out("""
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clc
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sbc ${address.number.toHex()}
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bvc +
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eor #$80
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+ bpl +
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bmi $jumpIfFalseLabel
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+""")
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return
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}
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}
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asmgen.assignExpressionToVariable(right, "P8ZP_SCRATCH_B1", DataType.UBYTE, null)
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out("""
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clc
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sbc P8ZP_SCRATCH_B1
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bvc +
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eor #$80
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+ bpl +
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bmi $jumpIfFalseLabel
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+""")
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return code("P8ZP_SCRATCH_B1")
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}
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private fun translateUwordGreaterJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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@ -995,6 +959,10 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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}
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private fun translateByteEqualsJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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fun code(cmpOperand: String) {
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asmgen.out(" cmp $cmpOperand | bne $jumpIfFalseLabel")
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}
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if(rightConstVal!=null) {
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if(leftConstVal!=null) {
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if(rightConstVal!=leftConstVal)
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@ -1002,40 +970,24 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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return
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} else {
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if (left is IdentifierReference) {
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val name = asmgen.asmVariableName(left)
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if(rightConstVal.number.toInt()!=0)
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asmgen.out(" lda $name | cmp #${rightConstVal.number} | bne $jumpIfFalseLabel")
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else
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asmgen.out(" lda $name | bne $jumpIfFalseLabel")
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return
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}
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else if (left is DirectMemoryRead) {
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translateDirectMemReadExpression(left, false)
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if(rightConstVal.number.toInt()!=0)
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asmgen.out(" cmp #${rightConstVal.number} | bne $jumpIfFalseLabel")
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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return if(rightConstVal.number.toInt()!=0)
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code("#${rightConstVal.number}")
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else
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asmgen.out(" bne $jumpIfFalseLabel")
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}
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if (left is DirectMemoryRead) {
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translateDirectMemReadExpression(left, false)
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return if(rightConstVal.number.toInt()!=0)
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code("#${rightConstVal.number}")
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else
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asmgen.out(" bne $jumpIfFalseLabel")
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return
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}
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}
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}
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if(right is IdentifierReference) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out(" cmp ${asmgen.asmVariableName(right)} | bne $jumpIfFalseLabel")
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if(byteJumpForSimpleRightOperands(left, right, ::code))
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return
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}
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var memread = right as? DirectMemoryRead
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if(memread==null && right is TypecastExpression)
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memread = right.expression as? DirectMemoryRead
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if(memread!=null) {
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val address = memread.addressExpression as? NumericLiteralValue
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if(address!=null) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out(" cmp ${address.number.toHex()} | bne $jumpIfFalseLabel")
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return
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}
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}
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asmgen.assignExpressionToVariable(right, "P8ZP_SCRATCH_B1", DataType.UBYTE, null)
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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@ -1043,6 +995,11 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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}
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private fun translateByteNotEqualsJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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fun code(cmpOperand: String) {
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asmgen.out(" cmp $cmpOperand | beq $jumpIfFalseLabel")
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}
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if(rightConstVal!=null) {
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if(leftConstVal!=null) {
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if(rightConstVal==leftConstVal)
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@ -1050,44 +1007,28 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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return
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} else {
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if (left is IdentifierReference) {
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val name = asmgen.asmVariableName(left)
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if(rightConstVal.number.toInt()!=0)
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asmgen.out(" lda $name | cmp #${rightConstVal.number} | beq $jumpIfFalseLabel")
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else
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asmgen.out(" lda $name | beq $jumpIfFalseLabel")
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return
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}
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else if (left is DirectMemoryRead) {
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translateDirectMemReadExpression(left, false)
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if(rightConstVal.number.toInt()!=0)
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asmgen.out(" cmp #${rightConstVal.number} | beq $jumpIfFalseLabel")
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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return if(rightConstVal.number.toInt()!=0)
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code("#${rightConstVal.number}")
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else
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asmgen.out(" beq $jumpIfFalseLabel")
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}
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if (left is DirectMemoryRead) {
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translateDirectMemReadExpression(left, false)
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return if(rightConstVal.number.toInt()!=0)
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code("#${rightConstVal.number}")
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else
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asmgen.out(" beq $jumpIfFalseLabel")
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return
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}
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}
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}
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if(right is IdentifierReference) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out(" cmp ${asmgen.asmVariableName(right)} | beq $jumpIfFalseLabel")
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if(byteJumpForSimpleRightOperands(left, right, ::code))
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return
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}
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var memread = right as? DirectMemoryRead
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if(memread==null && right is TypecastExpression)
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memread = right.expression as? DirectMemoryRead
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if(memread!=null) {
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val address = memread.addressExpression as? NumericLiteralValue
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if(address!=null) {
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out(" cmp ${address.number.toHex()} | beq $jumpIfFalseLabel")
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return
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}
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}
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asmgen.assignExpressionToVariable(right, "P8ZP_SCRATCH_B1", DataType.UBYTE, null)
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asmgen.assignExpressionToRegister(left, RegisterOrPair.A)
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asmgen.out(" cmp P8ZP_SCRATCH_B1 | beq $jumpIfFalseLabel")
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return code("P8ZP_SCRATCH_B1")
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}
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private fun translateWordEqualsJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
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