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float init optimization in asm
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Irmen de Jong
parent
9424387803
commit
76aeb06c97
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@ -654,13 +654,13 @@ private class StatementTranslator(private val prog: IntermediateProgram,
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DataType.STR, DataType.STR_P, DataType.STR_S, DataType.STR_PS -> {
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if(lv.heapId==null)
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throw CompilerException("string should have been moved into heap ${lv.position}")
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prog.instr(Opcode.PUSH_ADDR_HEAPVAR, callLabel = "@todo-string-varname?") // XXX push address of string
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TODO("push address of string with PUSH_ADDR_HEAPVAR")
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}
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DataType.ARRAY_UB, DataType.ARRAY_UW, DataType.ARRAY_F,
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DataType.ARRAY_B, DataType.ARRAY_W -> {
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if(lv.heapId==null)
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throw CompilerException("array should have been moved into heap ${lv.position}")
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prog.instr(Opcode.PUSH_WORD, Value(lv.type, lv.heapId)) // XXX push address of array
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TODO("push address of array with PUSH_WORD")
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}
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}
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}
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@ -37,6 +37,7 @@ fun optimizeSameAssignments(linesByFourteen: List<List<IndexedValue<String>>>):
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// optimize sequential assignments of the same value to various targets (bytes, words, floats)
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// the float one is the one that requires 2*7=14 lines of code to check...
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// @todo a better place to do this is in the Compiler instead and work on opcodes, and never even create the inefficient asm...
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val removeLines = mutableListOf<Int>()
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for (pair in linesByFourteen) {
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@ -71,7 +72,28 @@ fun optimizeSameAssignments(linesByFourteen: List<List<IndexedValue<String>>>):
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}
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}
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// @todo check float initializations.
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if(first.startsWith("lda") && second.startsWith("ldy") && third.startsWith("sta") && fourth.startsWith("sty") &&
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fifth.startsWith("lda") && sixth.startsWith("ldy") && seventh.startsWith("jsr c64flt.copy_float")) {
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val nineth = pair[8].value.trimStart()
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val tenth = pair[9].value.trimStart()
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val eleventh = pair[10].value.trimStart()
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val twelveth = pair[11].value.trimStart()
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val thirteenth = pair[12].value.trimStart()
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val fourteenth = pair[13].value.trimStart()
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if(eighth.startsWith("lda") && nineth.startsWith("ldy") && tenth.startsWith("sta") && eleventh.startsWith("sty") &&
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twelveth.startsWith("lda") && thirteenth.startsWith("ldy") && fourteenth.startsWith("jsr c64flt.copy_float")) {
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if(first.substring(4) == eighth.substring(4) && second.substring(4)==nineth.substring(4)) {
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// identical float init
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removeLines.add(pair[7].index)
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removeLines.add(pair[8].index)
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removeLines.add(pair[9].index)
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removeLines.add(pair[10].index)
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}
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}
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}
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}
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return removeLines
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}
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131
examples/test.p8
131
examples/test.p8
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@ -5,37 +5,112 @@
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sub start() {
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ubyte ub
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byte b
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word w
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uword uw
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ubyte ub1
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ubyte ub2
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ubyte ub3
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ubyte ub4
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byte b1
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byte b2
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byte b3
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byte b4
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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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uword uw1
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uword uw2
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uword uw3
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uword uw4
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float f1
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float f2
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float f3
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float f4
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memory ubyte mub1 = $c000
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memory ubyte mub2 = $c000
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memory ubyte mub3 = $c000
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memory ubyte mub4 = $c000
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memory byte mb1 = $c000
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memory byte mb2 = $c000
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memory byte mb3 = $c000
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memory byte mb4 = $c000
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memory word mw1 = $c000
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memory word mw2 = $c000
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memory word mw3 = $c000
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memory word mw4 = $c000
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memory uword muw1 = $c000
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memory uword muw2 = $c000
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memory uword muw3 = $c000
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memory uword muw4 = $c000
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memory float mf1 = $c010
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memory float mf2 = $c020
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memory float mf3 = $c030
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memory float mf4 = $c040
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ub1 = $11
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ub2 = $11
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ub3 = $11
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mub1 = $11
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mub2 = $11
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mub3 = $11
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ub4 = $44
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mub4 = $44
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ubyte[2] uba
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byte[2] ba
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word[2] wa
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uword[2] uwa
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str s
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str_p sp
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str_s ss
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str_ps sps
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b1=$11
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b2=$11
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b3=$11
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mb1=$11
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mb2=$11
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mb3=$11
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b4=$44
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mb4=$44
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s = ub as str
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sp = ub as str_p
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ss = ub as str_s
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sps = ub as str_ps
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s = b as str
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sp = b as str_p
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ss = b as str_s
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sps = b as str_ps
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s = w as str
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sp = w as str_p
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ss = w as str_s
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sps = w as str_ps
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s = uw as str
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sp = uw as str_p
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ss = uw as str_s
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sps = uw as str_ps
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w1=$1111
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w2=$1111
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w3=$1111
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mw1=$1111
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mw2=$1111
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mw3=$1111
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w4=$4444
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mw4=$4444
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uw1=$1111
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uw2=$1111
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uw3=$1111
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muw1=$1111
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muw2=$1111
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muw3=$1111
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uw4=$4444
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muw4=$4444
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f1 = 12.11
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f1 = 13.11
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f1 = 14.11
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f1 = 15.11
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f1 = 11.11
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f2 = 11.11
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f3 = 11.11
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mf1 = 11.11
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mf2 = 11.11
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mf3 = 11.11
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f4 = 44.44
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mf4 = 44.44
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c64flt.print_f(f1)
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c64.CHROUT('\n')
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c64flt.print_f(f2)
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c64.CHROUT('\n')
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c64flt.print_f(f3)
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c64.CHROUT('\n')
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c64flt.print_f(f4)
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c64.CHROUT('\n')
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c64flt.print_f(mf1)
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c64.CHROUT('\n')
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c64flt.print_f(mf2)
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c64.CHROUT('\n')
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c64flt.print_f(mf3)
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c64.CHROUT('\n')
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c64flt.print_f(mf4)
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c64.CHROUT('\n')
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}
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