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remove some more dead code
This commit is contained in:
Irmen de Jong
parent
b4e1b42cec
commit
2a6b0f5db7
@ -28,29 +28,17 @@ class IntermediateProgram(val name: String, var loadAddress: Int, val heap: Heap
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val memoryPointers: MutableMap<String, Pair<Int, DataType>> = mutableMapOf(),
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val labels: MutableMap<String, Instruction> = mutableMapOf(), // names are fully scoped
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val force_output: Boolean)
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{
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val numVariables: Int
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get() { return variables.size }
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val numInstructions: Int
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get() { return instructions.filter { it.opcode!= Opcode.LINE }.size }
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val variablesMarkedForZeropage: MutableSet<String> = mutableSetOf() // TODO maybe this can be removed now we have ValueParameters
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}
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val allocatedZeropageVariables = mutableMapOf<String, Pair<Int, DataType>>()
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val blocks = mutableListOf<ProgramBlock>()
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val memory = mutableMapOf<Int, List<RuntimeValue>>()
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private lateinit var currentBlock: ProgramBlock
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val numVariables: Int
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get() = blocks.sumBy { it.numVariables }
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val numInstructions: Int
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get() = blocks.sumBy { it.numInstructions }
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fun allocateZeropage(zeropage: Zeropage) {
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// allocates all @zp marked variables on the zeropage (for all blocks, as long as there is space in the ZP)
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var notAllocated = 0
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for(block in blocks) {
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val zpVariables = block.variables.filter { it.scopedname in block.variablesMarkedForZeropage }
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val zpVariables = block.variables.filter { it.params.zp==ZeropageWish.REQUIRE_ZEROPAGE || it.params.zp==ZeropageWish.PREFER_ZEROPAGE }
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if (zpVariables.isNotEmpty()) {
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for (variable in zpVariables) {
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if(variable.params.zp==ZeropageWish.NOT_IN_ZEROPAGE || variable.params.memberOfStruct!=null)
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@ -433,10 +421,6 @@ class IntermediateProgram(val name: String, var loadAddress: Int, val heap: Heap
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else -> throw CompilerException("weird datatype")
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}
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currentBlock.variables.add(Variable(scopedname, value, valueparams))
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if(decl.zeropage==ZeropageWish.PREFER_ZEROPAGE)
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currentBlock.variablesMarkedForZeropage.add(scopedname)
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else if(decl.zeropage==ZeropageWish.REQUIRE_ZEROPAGE)
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TODO("REQUIRE_ZEROPAGE not yet implemented")
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}
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VarDeclType.MEMORY -> {
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// note that constants are all folded away, but assembly code may still refer to them
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@ -49,7 +49,6 @@ class AsmGen(private val options: CompilationOptions, private val program: Inter
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val newblocks = mutableListOf<IntermediateProgram.ProgramBlock>()
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for(block in program.blocks) {
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val newvars = block.variables.map { IntermediateProgram.Variable(symname(it.scopedname, block), it.value, it.params) }.toMutableList()
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val newvarsZeropaged = block.variablesMarkedForZeropage.map{symname(it, block)}.toMutableSet()
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val newlabels = block.labels.map { symname(it.key, block) to it.value}.toMap().toMutableMap()
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val newinstructions = block.instructions.asSequence().map {
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when {
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@ -70,8 +69,6 @@ class AsmGen(private val options: CompilationOptions, private val program: Inter
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newMempointers,
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newlabels,
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force_output = block.force_output)
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newblock.variablesMarkedForZeropage.clear()
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newblock.variablesMarkedForZeropage.addAll(newvarsZeropaged)
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newblocks.add(newblock)
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}
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program.blocks.clear()
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@ -253,7 +250,6 @@ class AsmGen(private val options: CompilationOptions, private val program: Inter
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val address = zeropage.allocate(sym, variable.value.type, null)
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out("${variable.scopedname} = $address\t; auto zp ${variable.value.type}")
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// make sure we add the var to the set of zpvars for this block
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blk.variablesMarkedForZeropage.add(variable.scopedname)
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program.allocatedZeropageVariables[sym] = Pair(address, variable.value.type)
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} catch (x: ZeropageDepletedError) {
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// leave it as it is.
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@ -310,8 +306,9 @@ class AsmGen(private val options: CompilationOptions, private val program: Inter
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out("; other variables sorted by type")
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val sortedVars = normalVars.sortedBy { it.value.type }
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for (variable in sortedVars) {
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if(variable.scopedname in block.variablesMarkedForZeropage)
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continue // skip the ones that belong in the zero page
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val sym = symname(block.name + "." + variable.scopedname, null)
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if(sym in program.allocatedZeropageVariables)
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continue // skip the ones that already belong in the zero page
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vardecl2asm(variable.scopedname, variable.value, variable.params)
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}
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}
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@ -7,11 +7,69 @@
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sub start() {
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word w1
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word w2
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word w3
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word w4
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word w5
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word w6
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word w7
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word w8
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word w9
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word w10
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word w11
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word w12
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word w13
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word w14
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word w15
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word w16
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word w17
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word w18
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word w19
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word @zp w20
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word @zp w21
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word w22
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word w23
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word w24
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word w25
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word w26
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word w27
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word w28
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word w29
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word w30
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ubyte[] blaat = 10 to 20
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for ubyte c in 'a' to 'z' {
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c64.CHROUT(blaat[c])
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}
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word q
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q=w26
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q+=w27
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q+=w28
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q+=w29
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q+=w30
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q+=w10
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q+=w11
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q+=w12
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q+=w13
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q+=w14
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q+=w15
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q+=w16
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q+=w17
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q+=w18
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q+=w19
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q+=w20
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q+=w21
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q+=w22
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q+=w23
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q+=w24
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q+=w25
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q+=w26
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q+=w27
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}
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}
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