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https://github.com/irmen/prog8.git
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added some more missing assignment codegens (word * byte etc)
This commit is contained in:
Irmen de Jong
parent
94c30fc21e
commit
59c0e6ae32
@ -1197,4 +1197,22 @@ $counterVar .byte 0""")
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val assembly = asm.assembly.trimEnd().trimStart('\n')
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assemblyLines.add(assembly)
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}
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internal fun signExtendStackByte(valueDt: DataType) {
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// sign extend signed byte on stack to signed word
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when(valueDt) {
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DataType.UBYTE -> {
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out(" lda #0 | sta P8ESTACK_HI+1,x")
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}
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DataType.BYTE -> {
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out("""
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lda P8ESTACK_LO+1,x
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ora #$7f
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bmi +
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lda #0
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+ sta P8ESTACK_HI+1,x""")
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}
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else -> throw AssemblyError("need byte type")
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}
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}
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}
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@ -1013,15 +1013,7 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
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DataType.BYTE -> {
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when(typecast.type) {
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DataType.UBYTE, DataType.BYTE -> {}
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DataType.UWORD, DataType.WORD -> {
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// sign extend
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asmgen.out("""
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lda P8ESTACK_LO+1,x
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ora #$7f
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bmi +
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lda #0
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+ sta P8ESTACK_HI+1,x""")
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}
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DataType.UWORD, DataType.WORD -> asmgen.signExtendStackByte(DataType.BYTE)
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DataType.FLOAT -> asmgen.out(" jsr floats.stack_b2float")
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in PassByReferenceDatatypes -> throw AssemblyError("cannot cast to a pass-by-reference datatype")
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else -> throw AssemblyError("weird type")
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@ -1031,6 +1031,68 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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asmgen.translateExpression(value)
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val valueDt = value.inferType(program).typeOrElse(DataType.STRUCT)
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fun multiplyWord() {
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asmgen.out("""
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda $name
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ldy $name+1
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jsr math.multiply_words
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lda math.multiply_words.result
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sta $name
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lda math.multiply_words.result+1
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sta $name+1
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""")
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}
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fun divideWord() {
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if (dt == DataType.WORD) {
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asmgen.out("""
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lda $name
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ldy $name+1
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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jsr math.divmod_w_asm
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sta $name
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sty $name+1
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""")
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} else {
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asmgen.out("""
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lda $name
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ldy $name+1
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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jsr math.divmod_uw_asm
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sta $name
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sty $name+1
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""")
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}
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}
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fun remainderWord() {
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if(dt==DataType.WORD)
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throw AssemblyError("remainder of signed integers is not properly defined/implemented, use unsigned instead")
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asmgen.out("""
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lda $name
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ldy $name+1
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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jsr math.divmod_uw_asm
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lda P8ZP_SCRATCH_W2
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sta $name
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lda P8ZP_SCRATCH_W2+1
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sta $name+1
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""")
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}
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when(valueDt) {
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in ByteDatatypes -> {
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// the other variable is a BYTE type so optimize for that
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@ -1084,9 +1146,21 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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sbc P8ZP_SCRATCH_B1
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sta $name+1""")
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}
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"*" -> TODO("mul (u)word (u)byte")
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"/" -> TODO("div (u)word (u)byte")
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"%" -> TODO("(u)word remainder (u)byte")
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"*" -> {
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// stack contains (u) byte value, sign extend that and proceed with regular 16 bit operation
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asmgen.signExtendStackByte(valueDt)
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multiplyWord()
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}
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"/" -> {
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// stack contains (u) byte value, sign extend that and proceed with regular 16 bit operation
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asmgen.signExtendStackByte(valueDt)
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divideWord()
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}
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"%" -> {
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// stack contains (u) byte value, sign extend that and proceed with regular 16 bit operation
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asmgen.signExtendStackByte(valueDt)
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remainderWord()
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}
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"<<" -> {
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asmgen.translateExpression(value)
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asmgen.out("""
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@ -1137,65 +1211,9 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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// note: ** (power) operator requires floats.
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"+" -> asmgen.out(" lda $name | clc | adc P8ESTACK_LO+1,x | sta $name | lda $name+1 | adc P8ESTACK_HI+1,x | sta $name+1")
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"-" -> asmgen.out(" lda $name | sec | sbc P8ESTACK_LO+1,x | sta $name | lda $name+1 | sbc P8ESTACK_HI+1,x | sta $name+1")
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"*" -> {
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asmgen.out("""
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda $name
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ldy $name+1
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jsr math.multiply_words
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lda math.multiply_words.result
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sta $name
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lda math.multiply_words.result+1
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sta $name+1
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""")
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}
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"/" -> {
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if (dt == DataType.WORD) {
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asmgen.out("""
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lda $name
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ldy $name+1
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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jsr math.divmod_w_asm
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sta $name
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sty $name+1
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""")
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} else {
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asmgen.out("""
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lda $name
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ldy $name+1
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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jsr math.divmod_uw_asm
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sta $name
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sty $name+1
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""")
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}
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}
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"%" -> {
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if(dt==DataType.WORD)
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throw AssemblyError("remainder of signed integers is not properly defined/implemented, use unsigned instead")
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asmgen.out("""
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lda $name
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ldy $name+1
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda P8ESTACK_LO+1,x
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ldy P8ESTACK_HI+1,x
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jsr math.divmod_uw_asm
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lda P8ZP_SCRATCH_W2
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sta $name
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lda P8ZP_SCRATCH_W2+1
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sta $name+1
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""")
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}
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"*" -> multiplyWord()
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"/" -> divideWord()
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"%" -> remainderWord()
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"<<", ">>" -> throw AssemblyError("shift by a word value not supported, max is a byte")
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"&" -> asmgen.out(" lda $name | and P8ESTACK_LO+1,x | sta $name | lda $name+1 | and P8ESTACK_HI+1,x | sta $name+1")
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"^" -> asmgen.out(" lda $name | eor P8ESTACK_LO+1,x | sta $name | lda $name+1 | eor P8ESTACK_HI+1,x | sta $name+1")
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@ -1,6 +1,4 @@
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%import textio
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%zeropage basicsafe
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%option no_sysinit
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main {
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sub start() {
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@ -9,18 +7,11 @@ main {
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txt.print("\n--> TextElite conversion to Prog8 <--\n\n")
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galaxy.init(1)
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txt.print("\nstart!!!!")
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galaxy.debug_seed()
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galaxy.generate_planet(galaxy.numforLave)
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planet.display(false)
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; repeat 5 {
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; planet.set_seed(rndw(), rndw())
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; planet.name = planet.random_name()
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; planet.display(false)
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; txt.chrout('\n')
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; }
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txt.print("\nEnter to exit: ")
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void c64.CHRIN()
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}
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asmsub testX() {
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@ -42,11 +33,10 @@ _saveX .byte 0
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galaxy {
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const uword GALSIZE = 256
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; seed for first galaxy:
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const uword base0 = $5A4A
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const uword base0 = $5A4A ; seeds for the first galaxy
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const uword base1 = $0248
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const uword base2 = $B753
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const ubyte numforLave = 7 ; Lave is 7th generated planet in galaxy one
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const ubyte numforLave = 7 ; Lave is 7th generated planet in galaxy one
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const ubyte numforZaonce = 129
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const ubyte numforDiso = 147
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const ubyte numforRied = 46
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@ -98,12 +88,39 @@ galaxy {
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txt.chrout('\n')
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}
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sub generate_planet_properties() {
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; create the planet's characteristics
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planet.x = msb(seed[1])
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planet.y = msb(seed[0])
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planet.govtype = lsb(seed[1]) >> 3 & 7 ; bits 3,4 &5 of w1
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planet.economy = msb(seed[0]) & 7 ; bits 8,9 &A of w0
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if planet.govtype <= 1
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planet.economy = (planet.economy | 2)
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planet.techlevel = (msb(seed[1]) & 3) + (planet.economy ^ 7)
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planet.techlevel += planet.govtype >> 1
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if planet.govtype & 1
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planet.techlevel++
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planet.population = 4 * planet.techlevel + planet.economy
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planet.population += planet.govtype + 1
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planet.productivity = ((planet.economy ^ 7) + 3) * (planet.govtype + 4)
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planet.productivity *= planet.population * 8
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planet.radius = mkword((msb(seed[2]) & 15) + 11, planet.x)
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;planet.radius = 256 * (((seed[2] >> 8) & 15) + 11) + planet.x ; TODO why not the same answer??
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; TODO make this work: planet.goatsoup_seed = [seed[1] & $FF, seed[1] >> 8, seed[2] & $FF, seed[2] >> 8]
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planet.goatsoup_seed[0] = lsb(seed[1])
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planet.goatsoup_seed[1] = msb(seed[1])
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planet.goatsoup_seed[2] = lsb(seed[2])
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planet.goatsoup_seed[3] = msb(seed[2])
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}
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sub generate_planet(ubyte planetnum) {
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ubyte pair1
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ubyte pair2
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ubyte pair3
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ubyte pair4
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repeat planetnum+1 {
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generate_planet_properties()
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; Always four iterations of random number
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pair1 = (msb(seed[2]) & 31) * 2
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tweakseed()
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@ -115,20 +132,9 @@ galaxy {
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tweakseed()
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}
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debug_seed()
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txt.print("generating planet #")
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txt.print_ub(planetnum)
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txt.print("\npairs:")
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txt.print_ub(pair1)
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txt.chrout(',')
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txt.print_ub(pair2)
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txt.chrout(',')
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txt.print_ub(pair3)
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txt.chrout(',')
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txt.print_ub(pair4)
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txt.chrout('\n')
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; debug_seed()
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; create the planet's name
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ubyte ni = 0
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if pairs[pair1] != '.' {
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planet.name[ni] = pairs[pair1]
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@ -241,8 +247,8 @@ planet {
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ubyte govtype
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ubyte techlevel
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ubyte population
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ubyte productivity
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ubyte radius
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uword productivity
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uword radius
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; todo: species
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sub set_seed(uword s1, uword s2) {
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@ -404,9 +410,9 @@ planet {
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txt.print("\nTech Level: ")
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txt.print_ub(techlevel+1)
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txt.print("\nTurnover: ")
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txt.print_ub(productivity)
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txt.print("\nRadius:")
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txt.print_ub(radius)
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txt.print_uw(productivity)
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txt.print("\nRadius: ")
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txt.print_uw(radius)
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txt.print("\nPopulation: ")
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txt.print_ub(population >> 3)
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txt.print(" Billion\n")
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