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https://github.com/byteworksinc/ORCALib.git
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Add floating-point number classification functions.
These are the internal routines used by the fpclassify() macro.
This commit is contained in:
Stephen Heumann
parent
07959d32eb
commit
98cfd4e831
4
make
4
make
@ -19,7 +19,7 @@ if {#} == 0
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unset exit
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end
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for i in cc ctype string stdlib time setjmp orca fcntl vars toolglue signal int64 fenv fpextra
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for i in cc ctype string stdlib time setjmp orca fcntl vars toolglue signal int64 fenv fpextra math2
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Newer obj/{i}.a {i}.asm
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if {Status} != 0
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set exit on
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@ -40,7 +40,7 @@ delete orcalib
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set list vars.a assert.a cc.a setjmp.a ctype.a string.a stdlib.a
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set list {list} time.a signal.a toolglue.a orca.a fcntl.a stdio.a int64.a
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set list {list} fenv.a fpextra.a
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set list {list} fenv.a fpextra.a math2.a
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for i in {list}
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echo makelib orcalib +obj/{i}
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makelib orcalib +obj/{i}
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130
math2.asm
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130
math2.asm
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@ -0,0 +1,130 @@
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keep obj/math2
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mcopy math2.macros
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case on
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****************************************************************
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*
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* Math2 - additional math routines
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*
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* This code provides additional functions from <math.h>
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* (including internal helper functions used by macros),
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* supplementing the ones in SysFloat.
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*
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****************************************************************
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math2 private dummy segment
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end
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****************************************************************
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*
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* int __fpclassifyf(float x);
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*
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* Classify a float value
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*
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* Inputs:
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* val - the number to classify
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*
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* Outputs:
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* one of the FP_* classification values
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*
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****************************************************************
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*
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__fpclassifyf start
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csubroutine (10:val),0
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tdc
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clc
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adc #val
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ldy #0
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phy
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pha
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phy
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pha
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phy
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pha
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FX2S
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FCLASSS
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txa
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and #$00FF
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cmp #$00FC
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bne lb1
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inc a
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lb1 sta val
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creturn 2:val
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end
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****************************************************************
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*
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* int __fpclassifyd(double x);
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*
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* Classify a double value
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*
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* Inputs:
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* val - the number to classify
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*
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* Outputs:
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* one of the FP_* classification values
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*
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****************************************************************
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*
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__fpclassifyd start
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csubroutine (10:val),0
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tdc
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clc
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adc #val
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ldy #0
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phy
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pha
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phy
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pha
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phy
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pha
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FX2D
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FCLASSD
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txa
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and #$00FF
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cmp #$00FC
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bne lb1
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inc a
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lb1 sta val
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creturn 2:val
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end
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****************************************************************
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*
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* int __fpclassifyl(long double x);
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*
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* Classify a long double value
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*
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* Inputs:
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* val - the number to classify
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*
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* Outputs:
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* one of the FP_* classification values
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*
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****************************************************************
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*
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__fpclassifyl start
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csubroutine (10:val),0
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tdc
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clc
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adc #val
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pea 0
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pha
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FCLASSX
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txa
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and #$00FF
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cmp #$00FC
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bne lb1
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inc a
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lb1 sta val
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creturn 2:val
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end
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123
math2.macros
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123
math2.macros
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@ -0,0 +1,123 @@
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MACRO
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&lab csubroutine &parms,&work
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&lab anop
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aif c:&work,.a
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lclc &work
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&work setc 0
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.a
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gbla &totallen
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gbla &worklen
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&worklen seta &work
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&totallen seta 0
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aif c:&parms=0,.e
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lclc &len
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lclc &p
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lcla &i
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&i seta 1
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.b
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&p setc &parms(&i)
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&len amid &p,2,1
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aif "&len"=":",.c
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&len amid &p,1,2
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&p amid &p,4,l:&p-3
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ago .d
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.c
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&len amid &p,1,1
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&p amid &p,3,l:&p-2
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.d
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&p equ &totallen+4+&work
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&totallen seta &totallen+&len
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&i seta &i+1
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aif &i<=c:&parms,^b
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.e
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tsc
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aif &work=0,.f
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sec
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sbc #&work
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tcs
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.f
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phd
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tcd
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mend
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MACRO
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&lab creturn &r
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&lab anop
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lclc &len
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aif c:&r,.a
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lclc &r
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&r setc 0
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&len setc 0
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ago .h
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.a
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&len amid &r,2,1
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aif "&len"=":",.b
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&len amid &r,1,2
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&r amid &r,4,l:&r-3
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ago .c
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.b
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&len amid &r,1,1
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&r amid &r,3,l:&r-2
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.c
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aif &len<>2,.d
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ldy &r
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ago .h
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.d
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aif &len<>4,.e
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ldx &r+2
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ldy &r
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ago .h
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.e
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aif &len<>10,.g
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ldy #&r
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ldx #^&r
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ago .h
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.g
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mnote 'Not a valid return length',16
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mexit
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.h
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aif &totallen=0,.i
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lda &worklen+2
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sta &worklen+&totallen+2
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lda &worklen+1
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sta &worklen+&totallen+1
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.i
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pld
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tsc
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clc
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adc #&worklen+&totallen
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tcs
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aif &len=0,.j
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tya
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.j
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rtl
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mend
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MACRO
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&LAB FCLASSS
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&LAB PEA $021C
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LDX #$090A
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JSL $E10000
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MEND
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MACRO
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&LAB FCLASSD
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&LAB PEA $011C
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LDX #$090A
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JSL $E10000
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MEND
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MACRO
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&LAB FCLASSX
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&LAB PEA $001C
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LDX #$090A
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JSL $E10000
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MEND
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MACRO
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&LAB FX2S
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&LAB PEA $0210
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LDX #$090A
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JSL $E10000
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MEND
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MACRO
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&LAB FX2D
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&LAB PEA $0110
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LDX #$090A
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JSL $E10000
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MEND
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