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Support 64-bit decimal constants in code.
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Stephen Heumann
parent
d66f6b27b7
commit
2e29390e8e
48
Scanner.asm
48
Scanner.asm
@ -53,6 +53,54 @@ lb2 iny next character
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return 4:val
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end
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****************************************************************
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*
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* Convertsll - Convert a string to a long long integer
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*
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* Inputs:
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* qval - pointer to location to save value
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* str - pointer to the string
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*
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* Outputs:
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* Saves the value to [qval].
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*
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* Notes:
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* Assumes the string is valid.
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*
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****************************************************************
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*
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Convertsll start scanner
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disp equ 0 displacement into the string
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count equ 2 number of characters remaining to read
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subroutine (4:qval,4:str),4
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lda [str] set count to length of string
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and #$00FF
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sta count
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lda #1 start reading from character 1
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sta disp
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ph8 #0 initialize the number to zero
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bra lb1a
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lb1 ph8 #10 multiply by 10
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jsl ~UMUL8
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lb1a pea $0000
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pea $0000
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pea $0000
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ldy disp
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lda [str],Y add in the new digit
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and #$000F
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pha
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jsl ~ADD8
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lb2 inc disp next character
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dec count
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bne lb1
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pl8 [qval] save the value
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return
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end
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****************************************************************
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*
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* KeyPress - Has a key been pressed?
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107
Scanner.macros
107
Scanner.macros
@ -529,3 +529,110 @@
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dc i4'&p'
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~restm
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mend
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macro
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&l ph8 &n1
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lclc &c
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&l anop
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&c amid &n1,1,1
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aif s:longa=1,.a
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rep #%00100000
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.a
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aif "&c"="#",.d
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aif "&c"="[",.b
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aif "&c"<>"{",.c
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&c amid &n1,l:&n1,1
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aif "&c"<>"}",.g
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&n1 amid &n1,2,l:&n1-2
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&n1 setc (&n1)
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.b
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ldy #6
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~&SYSCNT lda &n1,y
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pha
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dey
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dey
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bpl ~&SYSCNT
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ago .e
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.c
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aif "&c"<>"<",.c1
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pei &n1+6
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pei &n1+4
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pei &n1+2
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pei &n1
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ago .e
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.c1
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ldx #6
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~&SYSCNT lda &n1,x
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pha
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dex
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dex
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bpl ~&SYSCNT
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ago .e
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.d
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&n1 amid &n1,2,l:&n1-1
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pea +(&n1)|-48
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pea +(&n1)|-32
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pea +(&n1)|-16
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pea &n1
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.e
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aif s:longa=1,.f
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sep #%00100000
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.f
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mexit
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.g
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mnote "Missing closing '}'",16
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mend
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macro
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&l pl8 &n1
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lclc &c
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&l anop
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aif s:longa=1,.a
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rep #%00100000
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.a
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&c amid &n1,1,1
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aif "&c"<>"{",.b
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&c amid &n1,l:&n1,1
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aif "&c"<>"}",.f
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&n1 amid &n1,2,l:&n1-2
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pla
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sta (&n1)
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ldy #2
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pla
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sta (&n1),y
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ldy #4
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pla
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sta (&n1),y
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ldy #6
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pla
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sta (&n1),y
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ago .d
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.b
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aif "&c"<>"[",.c
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pla
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sta &n1
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ldy #2
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pla
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sta &n1,y
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ldy #4
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pla
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sta &n1,y
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ldy #6
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pla
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sta &n1,y
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ago .d
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.c
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pla
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sta &n1
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pla
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sta &n1+2
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pla
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sta &n1+4
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pla
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sta &n1+6
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.d
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aif s:longa=1,.e
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sep #%00100000
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.e
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mexit
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.f
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mnote "Missing closing '}'",16
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mend
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16
Scanner.pas
16
Scanner.pas
@ -414,6 +414,11 @@ function Convertsl(var str: pString): longint; extern;
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{ Return the integer equivalent of the string. Assumes a valid }
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{ 4-byte integer string; supports unsigned values. }
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procedure Convertsll(var qval: longlong; var str: pString); extern;
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{ Save the integer equivalent of the string to qval. Assumes a }
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{ valid 8-byte integer string; supports unsigned values. }
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procedure SetDateTime; extern;
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@ -3356,22 +3361,21 @@ else if numString[1] <> '0' then begin {convert a decimal integer}
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or (not unsigned and (stringIndex = 10) and (numString > '2147483647'))
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or (unsigned and (stringIndex = 10) and (numString > '4294967295')) then
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isLongLong := true;
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if (stringIndex > 10) or {TODO increase limits}
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((stringIndex = 10) and (numString > '4294967295')) then begin
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if (not unsigned and ((stringIndex > 19) or
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((stringIndex = 19) and (numString > '9223372036854775807')))) or
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(unsigned and ((stringIndex > 20) or
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((stringIndex = 20) and (numString > '18446744073709551615')))) then begin
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numString := '0';
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if flagOverflows then
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FlagError(6);
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end; {if}
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if isLongLong then begin
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token.class := longlongConstant;
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token.qval.hi := 0;
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token.qval.lo := Convertsl(numString); {TODO support full 64-bit range}
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Convertsll(token.qval, numString);
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if unsigned then
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token.kind := ulonglongConst
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else begin
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token.kind := longlongConst;
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if token.qval.hi < 0 then
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FlagError(6);
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end; {else}
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end {if}
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else if isLong then begin
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