diff --git a/il65/astdefs.py b/il65/astdefs.py index c2f9e0583..b6ef739a8 100644 --- a/il65/astdefs.py +++ b/il65/astdefs.py @@ -164,6 +164,9 @@ class IntegerValue(Value): def __str__(self): return "".format(self.value, self.name) + def negative(self) -> 'IntegerValue': + return IntegerValue(-self.value, self.sourceref, datatype=self.datatype, name=self.name) + class FloatValue(Value): def __init__(self, value: float, sourceref: SourceRef, name: str = None) -> None: @@ -187,6 +190,9 @@ class FloatValue(Value): def __str__(self): return "".format(self.value, self.name) + def negative(self) -> 'FloatValue': + return FloatValue(-self.value, self.sourceref, name=self.name) + class StringValue(Value): def __init__(self, value: str, sourceref: SourceRef, name: str = None, constant: bool = False) -> None: @@ -419,21 +425,21 @@ class ReturnStmt(_AstNode): class InplaceIncrStmt(_AstNode): - def __init__(self, what: Value, howmuch: Union[None, int, float], byname: Optional[str], sourceref: SourceRef) -> None: + def __init__(self, what: Value, value: Union[IntegerValue, FloatValue], sourceref: SourceRef) -> None: super().__init__(sourceref) - assert howmuch is None or howmuch > 0 + assert value.constant + assert (value.value is None and value.name) or value.value > 0 self.what = what - self.howmuch = howmuch - self.float_var_name = byname + self.value = value class InplaceDecrStmt(_AstNode): - def __init__(self, what: Value, howmuch: Union[None, int, float], byname: Optional[str], sourceref: SourceRef) -> None: + def __init__(self, what: Value, value: Union[IntegerValue, FloatValue], sourceref: SourceRef) -> None: super().__init__(sourceref) - assert howmuch is None or howmuch > 0 + assert value.constant + assert (value.value is None and value.name) or value.value > 0 self.what = what - self.howmuch = howmuch - self.float_var_name = byname + self.value = value class IfCondition(_AstNode): diff --git a/il65/codegen.py b/il65/codegen.py index 6593aebfe..1b9f696ca 100644 --- a/il65/codegen.py +++ b/il65/codegen.py @@ -396,10 +396,13 @@ class CodeGenerator: self.previous_stmt_was_assignment = isinstance(stmt, AssignmentStmt) def generate_incr_or_decr(self, stmt: Union[InplaceIncrStmt, InplaceDecrStmt]) -> None: - assert (stmt.howmuch is None and stmt.float_var_name) or (stmt.howmuch > 0 and not stmt.float_var_name) - if stmt.what.datatype != DataType.FLOAT and stmt.howmuch > 0xff: + assert stmt.value.constant + assert (stmt.value.value is None and stmt.value.name) or stmt.value.value > 0 + if stmt.what.datatype != DataType.FLOAT and not stmt.value.name and stmt.value.value > 0xff: raise CodeError("only supports integer incr/decr by up to 255 for now") # XXX is_incr = isinstance(stmt, InplaceIncrStmt) + howmuch = stmt.value.value + value_str = stmt.value.name or str(howmuch) if isinstance(stmt.what, RegisterValue): reg = stmt.what.register # note: these operations below are all checked to be ok @@ -407,9 +410,9 @@ class CodeGenerator: if reg == 'A': # a += 1..255 self.p("\t\tclc") - self.p("\t\tadc #{:d}".format(stmt.howmuch)) + self.p("\t\tadc #" + value_str) elif reg in REGISTER_BYTES: - if stmt.howmuch == 1: + if howmuch == 1: # x/y += 1 self.p("\t\tin{:s}".format(reg.lower())) else: @@ -417,25 +420,25 @@ class CodeGenerator: self.p("\t\tpha") self.p("\t\tt{:s}a".format(reg.lower())) self.p("\t\tclc") - self.p("\t\tadc #{:d}".format(stmt.howmuch)) + self.p("\t\tadc #" + value_str) self.p("\t\tta{:s}".format(reg.lower())) self.p("\t\tpla") elif reg == "AX": # AX += 1..255 self.p("\t\tclc") - self.p("\t\tadc #{:d}".format(stmt.howmuch)) + self.p("\t\tadc #" + value_str) self.p("\t\tbcc +") self.p("\t\tinx") self.p("+") elif reg == "AY": # AY += 1..255 self.p("\t\tclc") - self.p("\t\tadc #{:d}".format(stmt.howmuch)) + self.p("\t\tadc # " + value_str) self.p("\t\tbcc +") self.p("\t\tiny") self.p("+") elif reg == "XY": - if stmt.howmuch == 1: + if howmuch == 1: # XY += 1 self.p("\t\tinx") self.p("\t\tbne +") @@ -446,7 +449,7 @@ class CodeGenerator: self.p("\t\tpha") self.p("\t\ttxa") self.p("\t\tclc") - self.p("\t\tadc #{:d}".format(stmt.howmuch)) + self.p("\t\tadc #" + value_str) self.p("\t\ttax") self.p("\t\tbcc +") self.p("\t\tiny") @@ -457,9 +460,9 @@ class CodeGenerator: if reg == 'A': # a -= 1..255 self.p("\t\tsec") - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) + self.p("\t\tsbc #" + value_str) elif reg in REGISTER_BYTES: - if stmt.howmuch == 1: + if howmuch == 1: # x/y -= 1 self.p("\t\tde{:s}".format(reg.lower())) else: @@ -467,25 +470,25 @@ class CodeGenerator: self.p("\t\tpha") self.p("\t\tt{:s}a".format(reg.lower())) self.p("\t\tsec") - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) + self.p("\t\tsbc #" + value_str) self.p("\t\tta{:s}".format(reg.lower())) self.p("\t\tpla") elif reg == "AX": # AX -= 1..255 self.p("\t\tsec") - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) + self.p("\t\tsbc #" + value_str) self.p("\t\tbcs +") self.p("\t\tdex") self.p("+") elif reg == "AY": # AY -= 1..255 self.p("\t\tsec") - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) + self.p("\t\tsbc #" + value_str) self.p("\t\tbcs +") self.p("\t\tdey") self.p("+") elif reg == "XY": - if stmt.howmuch == 1: + if howmuch == 1: # XY -= 1 self.p("\t\tcpx #0") self.p("\t\tbne +") @@ -496,7 +499,7 @@ class CodeGenerator: self.p("\t\tpha") self.p("\t\ttxa") self.p("\t\tsec") - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) + self.p("\t\tsbc #" + value_str) self.p("\t\ttax") self.p("\t\tbcs +") self.p("\t\tdey") @@ -507,86 +510,86 @@ class CodeGenerator: what = stmt.what if isinstance(what, IndirectValue): if isinstance(what.value, IntegerValue): - r_str = what.value.name or Parser.to_hex(what.value.value) + what_str = what.value.name or Parser.to_hex(what.value.value) else: raise CodeError("invalid incr indirect type", what.value) else: - r_str = what.name or Parser.to_hex(what.address) + what_str = what.name or Parser.to_hex(what.address) if what.datatype == DataType.BYTE: - if stmt.howmuch == 1: - self.p("\t\t{:s} {:s}".format("inc" if is_incr else "dec", r_str)) + if howmuch == 1: + self.p("\t\t{:s} {:s}".format("inc" if is_incr else "dec", what_str)) else: self.p("\t\tpha") - self.p("\t\tlda " + r_str) + self.p("\t\tlda " + what_str) if is_incr: self.p("\t\tclc") - self.p("\t\tadc #{:d}".format(stmt.howmuch)) + self.p("\t\tadc #" + value_str) else: self.p("\t\tsec") - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) - self.p("\t\tsta " + r_str) + self.p("\t\tsbc #" + value_str) + self.p("\t\tsta " + what_str) self.p("\t\tpla") elif what.datatype == DataType.WORD: - if stmt.howmuch == 1: + if howmuch == 1: # mem.word +=/-= 1 if is_incr: - self.p("\t\tinc " + r_str) + self.p("\t\tinc " + what_str) self.p("\t\tbne +") - self.p("\t\tinc {:s}+1".format(r_str)) + self.p("\t\tinc {:s}+1".format(what_str)) self.p("+") else: self.p("\t\tpha") - self.p("\t\tlda " + r_str) + self.p("\t\tlda " + what_str) self.p("\t\tbne +") - self.p("\t\tdec {:s}+1".format(r_str)) - self.p("+\t\tdec " + r_str) + self.p("\t\tdec {:s}+1".format(what_str)) + self.p("+\t\tdec " + what_str) self.p("\t\tpla") else: # mem.word +=/-= 2..255 if is_incr: self.p("\t\tpha") self.p("\t\tclc") - self.p("\t\tlda " + r_str) - self.p("\t\tadc #{:d}".format(stmt.howmuch)) - self.p("\t\tsta " + r_str) + self.p("\t\tlda " + what_str) + self.p("\t\tadc #" + value_str) + self.p("\t\tsta " + what_str) self.p("\t\tbcc +") - self.p("\t\tinc {:s}+1".format(r_str)) + self.p("\t\tinc {:s}+1".format(what_str)) self.p("+\t\tpla") else: self.p("\t\tpha") self.p("\t\tsec") - self.p("\t\tlda " + r_str) - self.p("\t\tsbc #{:d}".format(stmt.howmuch)) - self.p("\t\tsta " + r_str) + self.p("\t\tlda " + what_str) + self.p("\t\tsbc #" + value_str) + self.p("\t\tsta " + what_str) self.p("\t\tbcs +") - self.p("\t\tdec {:s}+1".format(r_str)) + self.p("\t\tdec {:s}+1".format(what_str)) self.p("+\t\tpla") elif what.datatype == DataType.FLOAT: - if stmt.howmuch == 1.0: + if howmuch == 1.0: # special case for +/-1 with self.preserving_registers({'A', 'X', 'Y'}, loads_a_within=True): - self.p("\t\tldx #<" + r_str) - self.p("\t\tldy #>" + r_str) + self.p("\t\tldx #<" + what_str) + self.p("\t\tldy #>" + what_str) if is_incr: - self.p("\t\tjsr il65_lib.float_add_one") + self.p("\t\tjsr c64flt.float_add_one") else: - self.p("\t\tjsr il65_lib.float_sub_one") - elif stmt.float_var_name: + self.p("\t\tjsr c64flt.float_sub_one") + elif stmt.value.name: with self.preserving_registers({'A', 'X', 'Y'}, loads_a_within=True): - self.p("\t\tlda #<" + stmt.float_var_name) + self.p("\t\tlda #<" + stmt.value.name) self.p("\t\tsta c64.SCRATCH_ZPWORD1") - self.p("\t\tlda #>" + stmt.float_var_name) + self.p("\t\tlda #>" + stmt.value.name) self.p("\t\tsta c64.SCRATCH_ZPWORD1+1") - self.p("\t\tldx #<" + r_str) - self.p("\t\tldy #>" + r_str) + self.p("\t\tldx #<" + what_str) + self.p("\t\tldy #>" + what_str) if is_incr: - self.p("\t\tjsr il65_lib.float_add_SW1_to_XY") + self.p("\t\tjsr c64flt.float_add_SW1_to_XY") else: - self.p("\t\tjsr il65_lib.float_sub_SW1_from_XY") + self.p("\t\tjsr c64flt.float_sub_SW1_from_XY") else: raise CodeError("incr/decr missing float constant definition") else: - raise CodeError("cannot in/decrement memory of type " + str(what.datatype), stmt.howmuch) + raise CodeError("cannot in/decrement memory of type " + str(what.datatype), howmuch) else: raise CodeError("cannot in/decrement " + str(stmt.what)) @@ -1536,7 +1539,7 @@ class CodeGenerator: # assigning a register to a float requires c64 ROM routines if r_register in REGISTER_WORDS: def do_rom_calls(): - self.p("\t\tjsr c64.GIVUAYF") # uword AY -> fac1 + self.p("\t\tjsr c64flt.GIVUAYF") # uword AY -> fac1 self.p("\t\tldx #<" + lv_string) self.p("\t\tldy #>" + lv_string) self.p("\t\tjsr c64.FTOMEMXY") # fac1 -> memory XY @@ -1772,7 +1775,7 @@ class CodeGenerator: self.p("\t\tsta c64.SCRATCH_ZPWORD1+1") self.p("\t\tldx #<" + l_str) self.p("\t\tldy #>" + l_str) - self.p("\t\tjsr il65_lib.copy_mflt") + self.p("\t\tjsr c64flt.copy_mflt") elif rvalue.datatype == DataType.BYTE: with self.preserving_registers({'A', 'X', 'Y'}): self.p("\t\tldy " + r_str) @@ -1784,7 +1787,7 @@ class CodeGenerator: with self.preserving_registers({'A', 'X', 'Y'}, loads_a_within=True): self.p("\t\tlda " + r_str) self.p("\t\tldy {:s}+1".format(r_str)) - self.p("\t\tjsr c64.GIVUAYF") # uword AY -> fac1 + self.p("\t\tjsr c64flt.GIVUAYF") # uword AY -> fac1 self.p("\t\tldx #<" + l_str) self.p("\t\tldy #>" + l_str) self.p("\t\tjsr c64.FTOMEMXY") # fac1 -> memory XY diff --git a/il65/parse.py b/il65/parse.py index 57471ce7a..2b7843995 100644 --- a/il65/parse.py +++ b/il65/parse.py @@ -254,10 +254,11 @@ class Parser: def desugar_immediate_floats(stmt: _AstNode, containing_block: Block) -> None: if isinstance(stmt, (InplaceIncrStmt, InplaceDecrStmt)): - if stmt.howmuch is None: - assert stmt.float_var_name + howmuch = stmt.value.value + if howmuch is None: + assert stmt.value.name return - if stmt.howmuch in (0, 1): + if howmuch in (0, 1) or type(howmuch) is int: return # 1 is special cased in the code generator rom_floats = { 1: "c64.FL_FONE", @@ -276,24 +277,24 @@ class Parser: 1.0 / math.log(2): "c64.FL_LOGEB2", } for fv, name in rom_floats.items(): - if math.isclose(stmt.howmuch, fv, rel_tol=0, abs_tol=1e-9): + if math.isclose(howmuch, fv, rel_tol=0, abs_tol=1e-9): # use one of the constants available in ROM - stmt.float_var_name = name + stmt.value.name = name return - if stmt.howmuch in self._immediate_floats: + if howmuch in self._immediate_floats: # reuse previously defined float constant - blockname, floatvar_name = self._immediate_floats[stmt.howmuch] + blockname, floatvar_name = self._immediate_floats[howmuch] if blockname: - stmt.float_var_name = blockname + '.' + floatvar_name + stmt.value.name = blockname + '.' + floatvar_name else: - stmt.float_var_name = floatvar_name + stmt.value.name = floatvar_name else: # define new float variable to hold the incr/decr value # note: not a constant, because we need the MFLT bytes floatvar_name = "il65_float_{:d}".format(id(stmt)) - containing_block.symbols.define_variable(floatvar_name, stmt.sourceref, DataType.FLOAT, value=stmt.howmuch) - self._immediate_floats[stmt.howmuch] = (containing_block.name, floatvar_name) - stmt.float_var_name = floatvar_name + containing_block.symbols.define_variable(floatvar_name, stmt.sourceref, DataType.FLOAT, value=howmuch) + self._immediate_floats[howmuch] = (containing_block.name, floatvar_name) + stmt.value.name = floatvar_name for block in self.result.blocks: self.cur_block = block @@ -826,9 +827,10 @@ class Parser: what = self.parse_expression(line[:-2].rstrip()) if isinstance(what, IntegerValue): raise self.PError("cannot in/decrement a constant value") + one_value = IntegerValue(1, self.sourceref) if incr: - return InplaceIncrStmt(what, 1, None, self.sourceref) - return InplaceDecrStmt(what, 1, None, self.sourceref) + return InplaceIncrStmt(what, one_value, self.sourceref) + return InplaceDecrStmt(what, one_value, self.sourceref) else: # perhaps it is an augmented assignment statement match = re.fullmatch(r"(?P\S+)\s*(?P\+=|-=|\*=|/=|%=|//=|\*\*=|&=|\|=|\^=|>>=|<<=)\s*(?P\S.*)", line) @@ -967,27 +969,24 @@ class Parser: if truncated: r_value = IntegerValue(int(value), self.sourceref, datatype=l_value.datatype, name=r_value.name) if operator in ("+=", "-="): - # see if we can simplify this to inplace incr/decr statement + # see if we can simplify this to inplace incr/decr statement (only int/float constant values) if r_value.constant: + if not isinstance(r_value, (IntegerValue, FloatValue)): + raise self.PError("incr/decr requires constant int or float, not " + r_value.__class__.__name__) if operator == "+=": - if r_value.value > 0: # type: ignore - return InplaceIncrStmt(l_value, r_value.value, None, self.sourceref) - elif r_value.value < 0: # type: ignore - return InplaceDecrStmt(l_value, -r_value.value, None, self.sourceref) + if r_value.value > 0: + return InplaceIncrStmt(l_value, r_value, self.sourceref) + elif r_value.value < 0: + return InplaceDecrStmt(l_value, r_value.negative(), self.sourceref) else: self.print_warning("incr with zero, ignored") else: - if r_value.value > 0: # type: ignore - return InplaceDecrStmt(l_value, r_value.value, None, self.sourceref) - elif r_value.value < 0: # type: ignore - return InplaceIncrStmt(l_value, -r_value.value, None, self.sourceref) + if r_value.value > 0: + return InplaceDecrStmt(l_value, r_value, self.sourceref) + elif r_value.value < 0: + return InplaceIncrStmt(l_value, r_value.negative(), self.sourceref) else: self.print_warning("decr with zero, ignored") - else: - if r_value.name: - if operator == "+=": - return InplaceIncrStmt(l_value, None, r_value.name, self.sourceref) - return InplaceDecrStmt(l_value, None, r_value.name, self.sourceref) return AugmentedAssignmentStmt(l_value, operator, r_value, self.sourceref) def parse_return(self, line: str) -> ReturnStmt: @@ -1404,7 +1403,9 @@ class Optimizer: # some symbols are used by the emitted assembly code from the code generator, # and should never be removed or the assembler will fail # @todo make this dynamic - never_remove = {"c64.GIVUAYF", "c64.FREADUY", "c64.FTOMEMXY", "c64.FADD", "c64.FSUB"} + never_remove = {"c64.FREADUY", "c64.FTOMEMXY", "c64.FADD", "c64.FSUB", + "c64flt.GIVUAYF", "c64flt.copy_mflt", "c64flt.float_add_one", "c64flt.float_sub_one", + "c64flt.float_add_SW1_to_XY", "c64flt.float_sub_SW1_from_XY"} discarded = [] for sub in list(block.symbols.iter_subroutines()): usages = self.parsed.subroutine_usage[(sub.blockname, sub.name)] diff --git a/lib/c64lib.ill b/lib/c64lib.ill index 093948ec5..123b0929d 100644 --- a/lib/c64lib.ill +++ b/lib/c64lib.ill @@ -115,17 +115,17 @@ sub MOVAF () -> (A?, X?) = $bc0c ; copy fac1 to fac2 (rounded) sub MOVEF () -> (A?, X?) = $bc0f ; copy fac1 to fac2 sub FTOMEMXY (mflpt: XY) -> (A?, Y?) = $bbd4 ; store fac1 to memory X/Y as 5-byte mflpt sub FTOSWORDYA () -> (Y, A, X?) = $b1aa ; fac1-> signed word in Y/A (might throw ILLEGAL QUANTITY) - ; use c64.FTOSWRDAY to get A/Y output (lo/hi switched to normal order) + ; use c64flt.FTOSWRDAY to get A/Y output (lo/hi switched to normal order) sub GETADR () -> (Y, A, X?) = $b7f7 ; fac1 -> unsigned word in Y/A (might throw ILLEGAL QUANTITY) - ; (result also in $14/15) use c64.GETADRAY to get A/Y output (lo/hi switched to normal order) + ; (result also in $14/15) use c64flt.GETADRAY to get A/Y output (lo/hi switched to normal order) sub QINT () -> (?) = $bc9b ; fac1 -> 4-byte signed integer in 98-101 ($62-$65), with the MSB FIRST. sub AYINT () -> (?) = $b1bf ; fac1-> signed word in 100-101 ($64-$65) MSB FIRST. (might throw ILLEGAL QUANTITY) sub GIVAYF (lo: Y, hi: A) -> (?) = $b391 ; signed word in Y/A -> float in fac1 - ; use c64.GIVAYFAY to use A/Y input (lo/hi switched to normal order) -; there is also c64.GIVUAYF - unsigned word in A/Y (lo/hi) to fac1 -; there is also c64.FREADS32 that reads from 98-101 ($62-$65) MSB FIRST -; there is also c64.FREADUS32 that reads from 98-101 ($62-$65) MSB FIRST -; there is also c64.FREADS24AXY that reads signed int24 into fac1 from A/X/Y (lo/mid/hi bytes) + ; use c64flt.GIVAYFAY to use A/Y input (lo/hi switched to normal order) +; there is also c64flt.GIVUAYF - unsigned word in A/Y (lo/hi) to fac1 +; there is also c64flt.FREADS32 that reads from 98-101 ($62-$65) MSB FIRST +; there is also c64flt.FREADUS32 that reads from 98-101 ($62-$65) MSB FIRST +; there is also c64flt.FREADS24AXY that reads signed int24 into fac1 from A/X/Y (lo/mid/hi bytes) sub FREADUY (ubyte: Y) -> (?) = $b3a2 ; 8 bit unsigned Y -> float in fac1 sub FREADSA (sbyte: A) -> (?) = $bc3c ; 8 bit signed A -> float in fac1 sub FREADSTR (len: A) -> (?) = $b7b5 ; str -> fac1, $22/23 must point to string, A=string length @@ -259,6 +259,14 @@ sub init_system () -> (?) { } } + +} ; ------ end of block c64 + + +~ c64flt { + ; ---- this block contains C-64 floating point related functions ---- + + sub FREADS32 () -> (?) { ; ---- fac1 = signed int32 from $62-$65 big endian (MSB FIRST) asm { @@ -342,7 +350,99 @@ sub GETADRAY () -> (AY, X?) { } -} ; ------ end of block c64 +sub copy_mflt (source: XY) -> (A?, Y?) { + ; ---- copy a 5 byte MFLT floating point variable to another place + ; input: X/Y = source address, c64.SCRATCH_ZPWORD1 = destination address + asm { + stx c64.SCRATCH_ZP1 + sty c64.SCRATCH_ZPWORD1+1 + ldy #0 + lda (c64.SCRATCH_ZP1),y + sta (c64.SCRATCH_ZPWORD1),y + iny + lda (c64.SCRATCH_ZP1),y + sta (c64.SCRATCH_ZPWORD1),y + iny + lda (c64.SCRATCH_ZP1),y + sta (c64.SCRATCH_ZPWORD1),y + iny + lda (c64.SCRATCH_ZP1),y + sta (c64.SCRATCH_ZPWORD1),y + iny + lda (c64.SCRATCH_ZP1),y + sta (c64.SCRATCH_ZPWORD1),y + ldy c64.SCRATCH_ZPWORD1+1 + rts + } +} + +sub float_add_one (mflt: XY) -> (?) { + ; ---- add 1 to the MFLT pointed to by X/Y. Clobbers A, X, Y + asm { + stx c64.SCRATCH_ZP1 + sty c64.SCRATCH_ZP2 + txa + jsr c64.MOVFM ; fac1 = float XY + lda #c64.FL_FONE + jsr c64.FADD ; fac1 += 1 + ldx c64.SCRATCH_ZP1 + ldy c64.SCRATCH_ZP2 + jmp c64.FTOMEMXY ; float XY = fac1 + } +} + +sub float_sub_one (mflt: XY) -> (?) { + ; ---- subtract 1 from the MFLT pointed to by X/Y. Clobbers A, X, Y + asm { + stx c64.SCRATCH_ZP1 + sty c64.SCRATCH_ZP2 + lda #c64.FL_FONE + jsr c64.MOVFM ; fac1 = 1 + txa + ldy c64.SCRATCH_ZP2 + jsr c64.FSUB ; fac1 = float XY - 1 + ldx c64.SCRATCH_ZP1 + ldy c64.SCRATCH_ZP2 + jmp c64.FTOMEMXY ; float XY = fac1 + } +} + +sub float_add_SW1_to_XY (mflt: XY) -> (?) { + ; ---- add MFLT pointed to by SCRATCH_ZPWORD1 to the MFLT pointed to by X/Y. Clobbers A, X, Y + asm { + stx c64.SCRATCH_ZP1 + sty c64.SCRATCH_ZP2 + txa + jsr c64.MOVFM ; fac1 = float XY + lda c64.SCRATCH_ZPWORD1 + ldy c64.SCRATCH_ZPWORD1+1 + jsr c64.FADD ; fac1 += SCRATCH_ZPWORD1 + ldx c64.SCRATCH_ZP1 + ldy c64.SCRATCH_ZP2 + jmp c64.FTOMEMXY ; float XY = fac1 + } +} + +sub float_sub_SW1_from_XY (mflt: XY) -> (?) { + ; ---- subtract MFLT pointed to by SCRATCH_ZPWORD1 from the MFLT pointed to by X/Y. Clobbers A, X, Y + asm { + stx c64.SCRATCH_ZP1 + sty c64.SCRATCH_ZP2 + lda c64.SCRATCH_ZPWORD1 + ldy c64.SCRATCH_ZPWORD1+1 + jsr c64.MOVFM ; fac1 = SCRATCH_ZPWORD1 + txa + ldy c64.SCRATCH_ZP2 + jsr c64.FSUB ; fac1 = float XY - SCRATCH_ZPWORD1 + ldx c64.SCRATCH_ZP1 + ldy c64.SCRATCH_ZP2 + jmp c64.FTOMEMXY ; float XY = fac1 + } +} + +} ; ------ end of block c64flt @@ -391,32 +491,10 @@ sub scroll_left_full (alsocolors: SC) -> (A?, X?, Y?) { ldx #0 ldy #38 - - lda c64.Colors + 40*0 + 1,x - sta c64.Colors + 40*0,x - lda c64.Colors + 40*1 + 1,x - sta c64.Colors + 40*1,x - lda c64.Colors + 40*2 + 1,x - sta c64.Colors + 40*2,x - lda c64.Colors + 40*3 + 1,x - sta c64.Colors + 40*3,x - lda c64.Colors + 40*4 + 1,x - sta c64.Colors + 40*4,x - lda c64.Colors + 40*5 + 1,x - sta c64.Colors + 40*5,x - lda c64.Colors + 40*6 + 1,x - sta c64.Colors + 40*6,x - lda c64.Colors + 40*7 + 1,x - sta c64.Colors + 40*7,x - lda c64.Colors + 40*8 + 1,x - sta c64.Colors + 40*8,x - lda c64.Colors + 40*9 + 1,x - sta c64.Colors + 40*9,x - lda c64.Colors + 40*10 + 1,x - sta c64.Colors + 40*10,x - lda c64.Colors + 40*11 + 1,x - sta c64.Colors + 40*11,x - lda c64.Colors + 40*12 + 1,x - sta c64.Colors + 40*12,x + .for row=0, row<=12, row+=1 + lda c64.Colors + 40*row + 1,x + sta c64.Colors + 40*row,x + .next inx dey bpl - @@ -424,30 +502,10 @@ sub scroll_left_full (alsocolors: SC) -> (A?, X?, Y?) { ldx #0 ldy #38 - - lda c64.Colors + 40*13 + 1,x - sta c64.Colors + 40*13,x - lda c64.Colors + 40*14 + 1,x - sta c64.Colors + 40*14,x - lda c64.Colors + 40*15 + 1,x - sta c64.Colors + 40*15,x - lda c64.Colors + 40*16 + 1,x - sta c64.Colors + 40*16,x - lda c64.Colors + 40*17 + 1,x - sta c64.Colors + 40*17,x - lda c64.Colors + 40*18 + 1,x - sta c64.Colors + 40*18,x - lda c64.Colors + 40*19 + 1,x - sta c64.Colors + 40*19,x - lda c64.Colors + 40*20 + 1,x - sta c64.Colors + 40*20,x - lda c64.Colors + 40*21 + 1,x - sta c64.Colors + 40*21,x - lda c64.Colors + 40*22 + 1,x - sta c64.Colors + 40*22,x - lda c64.Colors + 40*23 + 1,x - sta c64.Colors + 40*23,x - lda c64.Colors + 40*24 + 1,x - sta c64.Colors + 40*24,x + .for row=13, row<=24, row+=1 + lda c64.Colors + 40*row + 1,x + sta c64.Colors + 40*row,x + .next inx dey bpl - @@ -456,32 +514,10 @@ _scroll_screen ldx #0 ldy #38 - - lda c64.Screen + 40*0 + 1,x - sta c64.Screen + 40*0,x - lda c64.Screen + 40*1 + 1,x - sta c64.Screen + 40*1,x - lda c64.Screen + 40*2 + 1,x - sta c64.Screen + 40*2,x - lda c64.Screen + 40*3 + 1,x - sta c64.Screen + 40*3,x - lda c64.Screen + 40*4 + 1,x - sta c64.Screen + 40*4,x - lda c64.Screen + 40*5 + 1,x - sta c64.Screen + 40*5,x - lda c64.Screen + 40*6 + 1,x - sta c64.Screen + 40*6,x - lda c64.Screen + 40*7 + 1,x - sta c64.Screen + 40*7,x - lda c64.Screen + 40*8 + 1,x - sta c64.Screen + 40*8,x - lda c64.Screen + 40*9 + 1,x - sta c64.Screen + 40*9,x - lda c64.Screen + 40*10 + 1,x - sta c64.Screen + 40*10,x - lda c64.Screen + 40*11 + 1,x - sta c64.Screen + 40*11,x - lda c64.Screen + 40*12 + 1,x - sta c64.Screen + 40*12,x + .for row=0, row<=12, row+=1 + lda c64.Screen + 40*row + 1,x + sta c64.Screen + 40*row,x + .next inx dey bpl - @@ -489,33 +525,14 @@ _scroll_screen ldx #0 ldy #38 - - lda c64.Screen + 40*13 + 1,x - sta c64.Screen + 40*13,x - lda c64.Screen + 40*14 + 1,x - sta c64.Screen + 40*14,x - lda c64.Screen + 40*15 + 1,x - sta c64.Screen + 40*15,x - lda c64.Screen + 40*16 + 1,x - sta c64.Screen + 40*16,x - lda c64.Screen + 40*17 + 1,x - sta c64.Screen + 40*17,x - lda c64.Screen + 40*18 + 1,x - sta c64.Screen + 40*18,x - lda c64.Screen + 40*19 + 1,x - sta c64.Screen + 40*19,x - lda c64.Screen + 40*20 + 1,x - sta c64.Screen + 40*20,x - lda c64.Screen + 40*21 + 1,x - sta c64.Screen + 40*21,x - lda c64.Screen + 40*22 + 1,x - sta c64.Screen + 40*22,x - lda c64.Screen + 40*23 + 1,x - sta c64.Screen + 40*23,x - lda c64.Screen + 40*24 + 1,x - sta c64.Screen + 40*24,x + .for row=13, row<=24, row+=1 + lda c64.Screen + 40*row + 1,x + sta c64.Screen + 40*row,x + .next inx dey bpl - + rts } } @@ -532,124 +549,41 @@ sub scroll_right_full (alsocolors: SC) -> (A?, X?) { + ldx #38 - - lda c64.Colors + 40*0,x - sta c64.Colors + 40*0 + 1,x - lda c64.Colors + 40*1,x - sta c64.Colors + 40*1 + 1,x - lda c64.Colors + 40*2,x - sta c64.Colors + 40*2 + 1,x - lda c64.Colors + 40*3,x - sta c64.Colors + 40*3 + 1,x - lda c64.Colors + 40*4,x - sta c64.Colors + 40*4 + 1,x - lda c64.Colors + 40*5,x - sta c64.Colors + 40*5 + 1,x - lda c64.Colors + 40*6,x - sta c64.Colors + 40*6 + 1,x - lda c64.Colors + 40*7,x - sta c64.Colors + 40*7 + 1,x - lda c64.Colors + 40*8,x - sta c64.Colors + 40*8 + 1,x - lda c64.Colors + 40*9,x - sta c64.Colors + 40*9 + 1,x - lda c64.Colors + 40*10,x - sta c64.Colors + 40*10 + 1,x - lda c64.Colors + 40*11,x - sta c64.Colors + 40*11 + 1,x - lda c64.Colors + 40*12,x - sta c64.Colors + 40*12 + 1,x + .for row=0, row<=12, row+=1 + lda c64.Colors + 40*row + 0,x + sta c64.Colors + 40*row + 1,x + .next dex bpl - ldx #38 - - lda c64.Colors + 40*13,x - sta c64.Colors + 40*13 + 1,x - lda c64.Colors + 40*14,x - sta c64.Colors + 40*14 + 1,x - lda c64.Colors + 40*15,x - sta c64.Colors + 40*15 + 1,x - lda c64.Colors + 40*16,x - sta c64.Colors + 40*16 + 1,x - lda c64.Colors + 40*17,x - sta c64.Colors + 40*17 + 1,x - lda c64.Colors + 40*18,x - sta c64.Colors + 40*18 + 1,x - lda c64.Colors + 40*19,x - sta c64.Colors + 40*19 + 1,x - lda c64.Colors + 40*20,x - sta c64.Colors + 40*20 + 1,x - lda c64.Colors + 40*21,x - sta c64.Colors + 40*21 + 1,x - lda c64.Colors + 40*22,x - sta c64.Colors + 40*22 + 1,x - lda c64.Colors + 40*23,x - sta c64.Colors + 40*23 + 1,x - lda c64.Colors + 40*24,x - sta c64.Colors + 40*24 + 1,x + .for row=13, row<=24, row+=1 + lda c64.Colors + 40*row,x + sta c64.Colors + 40*row + 1,x + .next dex bpl - _scroll_screen ldx #38 - - lda c64.Screen + 40*0,x - sta c64.Screen + 40*0 + 1,x - lda c64.Screen + 40*1,x - sta c64.Screen + 40*1 + 1,x - lda c64.Screen + 40*2,x - sta c64.Screen + 40*2 + 1,x - lda c64.Screen + 40*3,x - sta c64.Screen + 40*3 + 1,x - lda c64.Screen + 40*4,x - sta c64.Screen + 40*4 + 1,x - lda c64.Screen + 40*5,x - sta c64.Screen + 40*5 + 1,x - lda c64.Screen + 40*6,x - sta c64.Screen + 40*6 + 1,x - lda c64.Screen + 40*7,x - sta c64.Screen + 40*7 + 1,x - lda c64.Screen + 40*8,x - sta c64.Screen + 40*8 + 1,x - lda c64.Screen + 40*9,x - sta c64.Screen + 40*9 + 1,x - lda c64.Screen + 40*10,x - sta c64.Screen + 40*10 + 1,x - lda c64.Screen + 40*11,x - sta c64.Screen + 40*11 + 1,x - lda c64.Screen + 40*12,x - sta c64.Screen + 40*12 + 1,x + .for row=0, row<=12, row+=1 + lda c64.Screen + 40*row + 0,x + sta c64.Screen + 40*row + 1,x + .next dex bpl - ldx #38 - - lda c64.Screen + 40*13,x - sta c64.Screen + 40*13 + 1,x - lda c64.Screen + 40*14,x - sta c64.Screen + 40*14 + 1,x - lda c64.Screen + 40*15,x - sta c64.Screen + 40*15 + 1,x - lda c64.Screen + 40*16,x - sta c64.Screen + 40*16 + 1,x - lda c64.Screen + 40*17,x - sta c64.Screen + 40*17 + 1,x - lda c64.Screen + 40*18,x - sta c64.Screen + 40*18 + 1,x - lda c64.Screen + 40*19,x - sta c64.Screen + 40*19 + 1,x - lda c64.Screen + 40*20,x - sta c64.Screen + 40*20 + 1,x - lda c64.Screen + 40*21,x - sta c64.Screen + 40*21 + 1,x - lda c64.Screen + 40*22,x - sta c64.Screen + 40*22 + 1,x - lda c64.Screen + 40*23,x - sta c64.Screen + 40*23 + 1,x - lda c64.Screen + 40*24,x - sta c64.Screen + 40*24 + 1,x + .for row=13, row<=24, row+=1 + lda c64.Screen + 40*row,x + sta c64.Screen + 40*row + 1,x + .next dex bpl - + rts } } @@ -666,118 +600,38 @@ sub scroll_up_full (alsocolors: SC) -> (A?, X?) { + ldx #39 - - lda c64.Colors + 40*1,x - sta c64.Colors + 40*0,x - lda c64.Colors + 40*2,x - sta c64.Colors + 40*1,x - lda c64.Colors + 40*3,x - sta c64.Colors + 40*2,x - lda c64.Colors + 40*4,x - sta c64.Colors + 40*3,x - lda c64.Colors + 40*5,x - sta c64.Colors + 40*4,x - lda c64.Colors + 40*6,x - sta c64.Colors + 40*5,x - lda c64.Colors + 40*7,x - sta c64.Colors + 40*6,x - lda c64.Colors + 40*8,x - sta c64.Colors + 40*7,x - lda c64.Colors + 40*9,x - sta c64.Colors + 40*8,x - lda c64.Colors + 40*10,x - sta c64.Colors + 40*9,x - lda c64.Colors + 40*11,x - sta c64.Colors + 40*10,x - lda c64.Colors + 40*12,x - sta c64.Colors + 40*11,x + .for row=1, row<=11, row+=1 + lda c64.Colors + 40*row,x + sta c64.Colors + 40*(row-1),x + .next dex bpl - ldx #39 - - lda c64.Colors + 40*13,x - sta c64.Colors + 40*12,x - lda c64.Colors + 40*14,x - sta c64.Colors + 40*13,x - lda c64.Colors + 40*15,x - sta c64.Colors + 40*14,x - lda c64.Colors + 40*16,x - sta c64.Colors + 40*15,x - lda c64.Colors + 40*17,x - sta c64.Colors + 40*16,x - lda c64.Colors + 40*18,x - sta c64.Colors + 40*17,x - lda c64.Colors + 40*19,x - sta c64.Colors + 40*18,x - lda c64.Colors + 40*20,x - sta c64.Colors + 40*19,x - lda c64.Colors + 40*21,x - sta c64.Colors + 40*20,x - lda c64.Colors + 40*22,x - sta c64.Colors + 40*21,x - lda c64.Colors + 40*23,x - sta c64.Colors + 40*22,x - lda c64.Colors + 40*24,x - sta c64.Colors + 40*23,x + .for row=12, row<=24, row+=1 + lda c64.Colors + 40*row,x + sta c64.Colors + 40*(row-1),x + .next dex bpl - _scroll_screen ldx #39 - - lda c64.Screen + 40*1,x - sta c64.Screen + 40*0,x - lda c64.Screen + 40*2,x - sta c64.Screen + 40*1,x - lda c64.Screen + 40*3,x - sta c64.Screen + 40*2,x - lda c64.Screen + 40*4,x - sta c64.Screen + 40*3,x - lda c64.Screen + 40*5,x - sta c64.Screen + 40*4,x - lda c64.Screen + 40*6,x - sta c64.Screen + 40*5,x - lda c64.Screen + 40*7,x - sta c64.Screen + 40*6,x - lda c64.Screen + 40*8,x - sta c64.Screen + 40*7,x - lda c64.Screen + 40*9,x - sta c64.Screen + 40*8,x - lda c64.Screen + 40*10,x - sta c64.Screen + 40*9,x - lda c64.Screen + 40*11,x - sta c64.Screen + 40*10,x - lda c64.Screen + 40*12,x - sta c64.Screen + 40*11,x + .for row=1, row<=11, row+=1 + lda c64.Screen + 40*row,x + sta c64.Screen + 40*(row-1),x + .next dex bpl - ldx #39 - - lda c64.Screen + 40*13,x - sta c64.Screen + 40*12,x - lda c64.Screen + 40*14,x - sta c64.Screen + 40*13,x - lda c64.Screen + 40*15,x - sta c64.Screen + 40*14,x - lda c64.Screen + 40*16,x - sta c64.Screen + 40*15,x - lda c64.Screen + 40*17,x - sta c64.Screen + 40*16,x - lda c64.Screen + 40*18,x - sta c64.Screen + 40*17,x - lda c64.Screen + 40*19,x - sta c64.Screen + 40*18,x - lda c64.Screen + 40*20,x - sta c64.Screen + 40*19,x - lda c64.Screen + 40*21,x - sta c64.Screen + 40*20,x - lda c64.Screen + 40*22,x - sta c64.Screen + 40*21,x - lda c64.Screen + 40*23,x - sta c64.Screen + 40*22,x - lda c64.Screen + 40*24,x - sta c64.Screen + 40*23,x + .for row=12, row<=24, row+=1 + lda c64.Screen + 40*row,x + sta c64.Screen + 40*(row-1),x + .next dex bpl - @@ -797,122 +651,38 @@ sub scroll_down_full (alsocolors: SC) -> (A?, X?) { + ldx #39 - - lda c64.Colors + 40*23,x - sta c64.Colors + 40*24,x - lda c64.Colors + 40*22,x - sta c64.Colors + 40*23,x - lda c64.Colors + 40*21,x - sta c64.Colors + 40*22,x - lda c64.Colors + 40*20,x - sta c64.Colors + 40*21,x - lda c64.Colors + 40*19,x - sta c64.Colors + 40*20,x - lda c64.Colors + 40*18,x - sta c64.Colors + 40*19,x - lda c64.Colors + 40*17,x - sta c64.Colors + 40*18,x - lda c64.Colors + 40*16,x - sta c64.Colors + 40*17,x - lda c64.Colors + 40*15,x - sta c64.Colors + 40*16,x - lda c64.Colors + 40*14,x - sta c64.Colors + 40*15,x - lda c64.Colors + 40*13,x - sta c64.Colors + 40*14,x - lda c64.Colors + 40*12,x - sta c64.Colors + 40*13,x - + .for row=23, row>=12, row-=1 + lda c64.Colors + 40*row,x + sta c64.Colors + 40*(row+1),x + .next dex bpl - ldx #39 - - lda c64.Colors + 40*11,x - sta c64.Colors + 40*12,x - lda c64.Colors + 40*10,x - sta c64.Colors + 40*11,x - lda c64.Colors + 40*9,x - sta c64.Colors + 40*10,x - lda c64.Colors + 40*8,x - sta c64.Colors + 40*9,x - lda c64.Colors + 40*7,x - sta c64.Colors + 40*8,x - lda c64.Colors + 40*6,x - sta c64.Colors + 40*7,x - lda c64.Colors + 40*5,x - sta c64.Colors + 40*6,x - lda c64.Colors + 40*4,x - sta c64.Colors + 40*5,x - lda c64.Colors + 40*3,x - sta c64.Colors + 40*4,x - lda c64.Colors + 40*2,x - sta c64.Colors + 40*3,x - lda c64.Colors + 40*1,x - sta c64.Colors + 40*2,x - lda c64.Colors + 40*0,x - sta c64.Colors + 40*1,x - + .for row=11, row>=0, row-=1 + lda c64.Colors + 40*row,x + sta c64.Colors + 40*(row+1),x + .next dex bpl - _scroll_screen ldx #39 - - lda c64.Screen + 40*23,x - sta c64.Screen + 40*24,x - lda c64.Screen + 40*22,x - sta c64.Screen + 40*23,x - lda c64.Screen + 40*21,x - sta c64.Screen + 40*22,x - lda c64.Screen + 40*20,x - sta c64.Screen + 40*21,x - lda c64.Screen + 40*19,x - sta c64.Screen + 40*20,x - lda c64.Screen + 40*18,x - sta c64.Screen + 40*19,x - lda c64.Screen + 40*17,x - sta c64.Screen + 40*18,x - lda c64.Screen + 40*16,x - sta c64.Screen + 40*17,x - lda c64.Screen + 40*15,x - sta c64.Screen + 40*16,x - lda c64.Screen + 40*14,x - sta c64.Screen + 40*15,x - lda c64.Screen + 40*13,x - sta c64.Screen + 40*14,x - lda c64.Screen + 40*12,x - sta c64.Screen + 40*13,x - + .for row=23, row>=12, row-=1 + lda c64.Screen + 40*row,x + sta c64.Screen + 40*(row+1),x + .next dex bpl - ldx #39 - - lda c64.Screen + 40*11,x - sta c64.Screen + 40*12,x - lda c64.Screen + 40*10,x - sta c64.Screen + 40*11,x - lda c64.Screen + 40*9,x - sta c64.Screen + 40*10,x - lda c64.Screen + 40*8,x - sta c64.Screen + 40*9,x - lda c64.Screen + 40*7,x - sta c64.Screen + 40*8,x - lda c64.Screen + 40*6,x - sta c64.Screen + 40*7,x - lda c64.Screen + 40*5,x - sta c64.Screen + 40*6,x - lda c64.Screen + 40*4,x - sta c64.Screen + 40*5,x - lda c64.Screen + 40*3,x - sta c64.Screen + 40*4,x - lda c64.Screen + 40*2,x - sta c64.Screen + 40*3,x - lda c64.Screen + 40*1,x - sta c64.Screen + 40*2,x - lda c64.Screen + 40*0,x - sta c64.Screen + 40*1,x - + .for row=11, row>=0, row-=1 + lda c64.Screen + 40*row,x + sta c64.Screen + 40*(row+1),x + .next dex bpl - diff --git a/lib/il65lib.ill b/lib/il65lib.ill index ab86b3838..a0f01759b 100644 --- a/lib/il65lib.ill +++ b/lib/il65lib.ill @@ -95,89 +95,4 @@ jsr_indirect_XY jmp (SCRATCH_ZP1) } - - - asm { - -; ---- copy a 5 byte MFLT floating point variable to another place -; input: X/Y = source address, SCRATCH_ZPWORD1 = destination address -copy_mflt stx SCRATCH_ZP1 - sty SCRATCH_ZPWORD1+1 - ldy #0 - lda (SCRATCH_ZP1),y - sta (SCRATCH_ZPWORD1),y - iny - lda (SCRATCH_ZP1),y - sta (SCRATCH_ZPWORD1),y - iny - lda (SCRATCH_ZP1),y - sta (SCRATCH_ZPWORD1),y - iny - lda (SCRATCH_ZP1),y - sta (SCRATCH_ZPWORD1),y - iny - lda (SCRATCH_ZP1),y - sta (SCRATCH_ZPWORD1),y - ldy SCRATCH_ZPWORD1+1 - rts - } - - asm { - -; ---- add 1 to the MFLT pointed to by X/Y. Clobbers A, X, Y -float_add_one - stx SCRATCH_ZP1 - sty SCRATCH_ZP2 - txa - jsr c64.MOVFM ; fac1 = float XY - lda #c64.FL_FONE - jsr c64.FADD ; fac1 += 1 - ldx SCRATCH_ZP1 - ldy SCRATCH_ZP2 - jmp c64.FTOMEMXY ; float XY = fac1 - -; ---- subtract 1 from the MFLT pointed to by X/Y. Clobbers A, X, Y -float_sub_one - stx SCRATCH_ZP1 - sty SCRATCH_ZP2 - lda #c64.FL_FONE - jsr c64.MOVFM ; fac1 = 1 - txa - ldy SCRATCH_ZP2 - jsr c64.FSUB ; fac1 = float XY - 1 - ldx SCRATCH_ZP1 - ldy SCRATCH_ZP2 - jmp c64.FTOMEMXY ; float XY = fac1 - - -; ---- add MFLT pointed to by SCRATCH_ZPWORD1 to the MFLT pointed to by X/Y. Clobbers A, X, Y -float_add_SW1_to_XY - stx SCRATCH_ZP1 - sty SCRATCH_ZP2 - txa - jsr c64.MOVFM ; fac1 = float XY - lda SCRATCH_ZPWORD1 - ldy SCRATCH_ZPWORD1+1 - jsr c64.FADD ; fac1 += SCRATCH_ZPWORD1 - ldx SCRATCH_ZP1 - ldy SCRATCH_ZP2 - jmp c64.FTOMEMXY ; float XY = fac1 - - -; ---- subtract MFLT pointed to by SCRATCH_ZPWORD1 from the MFLT pointed to by X/Y. Clobbers A, X, Y -float_sub_SW1_from_XY - stx SCRATCH_ZP1 - sty SCRATCH_ZP2 - lda SCRATCH_ZPWORD1 - ldy SCRATCH_ZPWORD1+1 - jsr c64.MOVFM ; fac1 = SCRATCH_ZPWORD1 - txa - ldy SCRATCH_ZP2 - jsr c64.FSUB ; fac1 = float XY - SCRATCH_ZPWORD1 - ldx SCRATCH_ZP1 - ldy SCRATCH_ZP2 - jmp c64.FTOMEMXY ; float XY = fac1 - } } diff --git a/testsource/floats.ill b/testsource/floats.ill index d47207b45..cecf61451 100644 --- a/testsource/floats.ill +++ b/testsource/floats.ill @@ -59,6 +59,15 @@ start some_address = 4123.2342342222 [$c000.word] = # flt_pi + my_float ++ + my_float += 1 + my_float += 0.5 + my_float += 999.222 + my_float -- + my_float -= 1 + my_float -= 0.5 + my_float -= 999.222 + ; print some floating points from source and compare them with ROM printflt(#flt_pi) diff --git a/testsource/numbergame.ill b/testsource/numbergame.ill index 2b01a9420..17c6374fc 100644 --- a/testsource/numbergame.ill +++ b/testsource/numbergame.ill @@ -15,8 +15,6 @@ import "c64lib" start c64.init_system() - c64.VMCSB += 2 - c64.VMCSB *= 2 A = c64.VMCSB A |= 2 ; @todo c64.VMCSB |= 2 c64.VMCSB = A @@ -37,7 +35,7 @@ start c64.MUL10() c64.FADDH() c64.FADDH() - AY = c64.GETADRAY() + AY = c64flt.GETADRAY() secretnumber = A c64scr.print_string("I am thinking of a number from 1 to 100!You'll have to guess it!\n") @@ -58,7 +56,7 @@ ask_guess c64.CHROUT('\n') [$22.word] = guess c64.FREADSTR(A) - AY = c64.GETADRAY() + AY = c64flt.GETADRAY() A -= secretnumber ; @todo condition so we can do if guess > secretnumber.... if_zero goto correct_guess if_gt goto too_high diff --git a/todo.ill b/todo.ill index 57cc8d29e..73990beda 100644 --- a/todo.ill +++ b/todo.ill @@ -5,7 +5,16 @@ output prg,basic import "c64lib" ~ main { + const num = 44 + var var1 =22 + var .word wvar1 = 22 start + var1 ++ + var1 += num + X++ + X+=num + + asm { ldy #200 - lda #81 @@ -42,7 +51,7 @@ start loop A=c64.GETIN() if_not goto loop - c64scr.scroll_down_full(1) + c64scr.scroll_right_full(1) goto loop c64.CHROUT(A) goto loop