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https://github.com/irmen/prog8.git
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rest of optimizations following simplification of array indexer
This commit is contained in:
Irmen de Jong
parent
82a28bb555
commit
1a36302cf1
@ -208,17 +208,6 @@ pop_float_fac2 .proc
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jmp CONUPK
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.pend
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pop_float_to_indexed_var .proc
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; -- pop the float on the stack, to the memory in the array at A/Y indexed by the byte on stack
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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jsr prog8_lib.pop_index_times_5
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jsr prog8_lib.add_a_to_zpword
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lda P8ZP_SCRATCH_W1
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ldy P8ZP_SCRATCH_W1+1
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jmp pop_float
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.pend
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copy_float .proc
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; -- copies the 5 bytes of the mflt value pointed to by SCRATCH_ZPWORD1,
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; into the 5 bytes pointed to by A/Y. Clobbers A,Y.
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@ -707,13 +696,12 @@ sign_f .proc
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set_0_array_float .proc
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; -- set a float in an array to zero (index on stack, array in SCRATCH_ZPWORD1)
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inx
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lda P8ESTACK_LO,x
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; -- set a float in an array to zero (index in A, array in P8ZP_SCRATCH_W1)
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sta P8ZP_SCRATCH_B1
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asl a
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asl a
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clc
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adc P8ESTACK_LO,x
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adc P8ZP_SCRATCH_B1
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tay
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lda #0
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sta (P8ZP_SCRATCH_W1),y
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@ -730,13 +718,12 @@ set_0_array_float .proc
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set_array_float .proc
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; -- set a float in an array to a value (index on stack, float in SCRATCH_ZPWORD1, array in SCRATCH_ZPWORD2)
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inx
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lda P8ESTACK_LO,x
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; -- set a float in an array to a value (index in A, float in P8ZP_SCRATCH_W1, array in P8ZP_SCRATCH_W2)
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sta P8ZP_SCRATCH_B1
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asl a
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asl a
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clc
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adc P8ESTACK_LO,x
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adc P8ZP_SCRATCH_B1
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adc P8ZP_SCRATCH_W2
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ldy P8ZP_SCRATCH_W2+1
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bcc +
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@ -40,16 +40,6 @@ add_a_to_zpword .proc
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+ rts
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.pend
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pop_index_times_5 .proc
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inx
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lda P8ESTACK_LO,x
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asl a
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asl a
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clc
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adc P8ESTACK_LO,x
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rts
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.pend
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neg_b .proc
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lda #0
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sec
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@ -311,7 +311,7 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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adc #<${target.asmVarname}
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bcc +
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iny
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+ jsr floats.pop_float""")
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+ jsr floats.pop_float""")
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}
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else -> throw AssemblyError("weird dt")
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}
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@ -529,15 +529,23 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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""")
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}
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TargetStorageKind.ARRAY -> {
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// TODO optimize this (array indexer is just a simple number or variable), but the situation doesn't occur very often ****************************************
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// if(target.constArrayIndexValue!=null) {
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// TODO("const index ${target.constArrayIndexValue}")
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// } else if(target.array!!.arrayspec.index is IdentifierReference) {
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// TODO("array[var] ${target.constArrayIndexValue}")
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// }
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asmgen.out(" lda #<$sourceName | ldy #>$sourceName | jsr floats.push_float")
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asmgen.translateExpression(target.array!!.indexer)
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asmgen.out(" lda #<${target.asmVarname} | ldy #>${target.asmVarname} | jsr floats.pop_float_to_indexed_var")
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asmgen.out("""
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lda #<$sourceName
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ldy #>$sourceName
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sta P8ZP_SCRATCH_W1
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sty P8ZP_SCRATCH_W1+1
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lda #<${target.asmVarname}
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ldy #>${target.asmVarname}
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sta P8ZP_SCRATCH_W2
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sty P8ZP_SCRATCH_W2+1""")
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if(target.array!!.indexer.indexNum!=null) {
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val index = target.array.indexer.constIndex()!!
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asmgen.out(" lda #$index")
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} else {
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val asmvarname = asmgen.asmVariableName(target.array.indexer.indexVar!!)
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asmgen.out(" lda $asmvarname")
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}
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asmgen.out(" jsr floats.set_array_float")
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}
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TargetStorageKind.MEMORY -> throw AssemblyError("can't assign float to mem byte")
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TargetStorageKind.REGISTER -> throw AssemblyError("can't assign float to register")
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@ -824,18 +832,8 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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throw AssemblyError("no asm gen for assign word $word to memory ${target.memory}")
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}
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TargetStorageKind.ARRAY -> {
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// TODO optimize this (array indexer is just a simple number or variable), but the situation doesn't occur very often ****************************************
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// if(target.constArrayIndexValue!=null) {
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// TODO("const index ${target.constArrayIndexValue}")
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// } else if(target.array!!.arrayspec.index is IdentifierReference) {
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// TODO("array[var] ${target.constArrayIndexValue}")
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// }
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asmgen.translateExpression(target.array!!.indexer)
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asmgen.loadScaledArrayIndexIntoRegister(target.array!!, DataType.UWORD, CpuRegister.Y)
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asmgen.out("""
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inx
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lda P8ESTACK_LO,x
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asl a
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tay
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lda #<${word.toHex()}
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sta ${target.asmVarname},y
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lda #>${word.toHex()}
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@ -931,13 +929,13 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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sta ${target.asmVarname}+$indexValue+4
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""")
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} else {
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// TODO optimize this (don't use stack eval) as the indexer is only a simple variable ****************************************
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asmgen.translateExpression(target.array.indexer.indexVar!!)
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val asmvarname = asmgen.asmVariableName(target.array.indexer.indexVar!!)
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asmgen.out("""
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lda #<${target.asmVarname}
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sta P8ZP_SCRATCH_W1
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lda #>${target.asmVarname}
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sta P8ZP_SCRATCH_W1+1
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lda $asmvarname
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jsr floats.set_0_array_float
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""")
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}
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@ -984,8 +982,7 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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sta $arrayVarName+$indexValue+4
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""")
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} else {
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// TODO optimize this (don't use stack eval) as the indexer is only a simple variable ****************************************
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asmgen.translateExpression(target.array.indexer.indexVar!!)
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val asmvarname = asmgen.asmVariableName(target.array.indexer.indexVar!!)
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asmgen.out("""
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lda #<${constFloat}
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sta P8ZP_SCRATCH_W1
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@ -995,6 +992,7 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
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sta P8ZP_SCRATCH_W2
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lda #>${arrayVarName}
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sta P8ZP_SCRATCH_W2+1
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lda $asmvarname
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jsr floats.set_array_float
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""")
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}
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@ -7,25 +7,27 @@ main {
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sub start() {
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uword vv = $1111
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uword vv2
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vv2 = vv2+(vv/2)
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vv2 = vv2+(vv - 1)
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vv2 = vv2+(vv + $0200)
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vv2 = vv2+(vv - $0400)
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txt.print_uw(vv2)
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txt.chrout('\n')
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uword[] array = [1, 2, 3]
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uword fzero = 0.0
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uword fnine = 9999
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array[0] = 0
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ubyte ii = 1
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array[ii] = 0
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word ww = -$1111
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word ww2 = 0
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ww2 = ww2 + ww + $0200
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ww2 = ww2 +ww - $0400
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txt.print_w(ww2)
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txt.chrout('\n')
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ww2= ww2 + ww + -$0200
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ww2= ww2 + ww - -$0400
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txt.print_w(ww2)
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txt.chrout('\n')
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uword ff
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for ii in 0 to len(array)-1 {
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txt.print_uw(array[ii])
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txt.chrout('\n')
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}
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array[0] = 9
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ii = 1
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array[ii] = 9
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for ii in 0 to len(array)-1 {
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txt.print_uw(array[ii])
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txt.chrout('\n')
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}
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testX()
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}
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