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/* macpcstr.c -- niftyapp library pascal/C combination strings |
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*/ |
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/* (C) Copyright 1995 by Carnegie Mellon University |
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* All Rights Reserved. |
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* |
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* Permission to use, copy, modify, distribute, and sell this software |
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* and its documentation for any purpose is hereby granted without |
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* fee, provided that the above copyright notice appear in all copies |
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* and that both that copyright notice and this permission notice |
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* appear in supporting documentation, and that the name of Carnegie |
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* Mellon University not be used in advertising or publicity |
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* pertaining to distribution of the software without specific, |
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* written prior permission. Carnegie Mellon University makes no |
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* representations about the suitability of this software for any |
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* purpose. It is provided "as is" without express or implied |
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* warranty. |
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* |
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* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO |
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
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* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE |
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* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN |
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
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* SOFTWARE. |
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*/ |
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/* (C) Copyright 1990, 1991 by Christopher J. Newman |
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* All Rights Reserved. |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and its |
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* documentation for any purpose is hereby granted without fee, provided that |
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* the above copyright notice appear in all copies and that both that |
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* copyright notice and this permission notice appear in supporting |
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* documentation, and that the name of Christopher J. Newman not be used in |
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* advertising or publicity pertaining to distribution of the software without |
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* specific, written prior permission. Christopher J. Newman makes no |
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* representations about the suitability of this software for any purpose. It |
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* is provided "as is" without express or implied warranty. |
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* |
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* CHRISTOPHER J. NEWMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT |
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* SHALL CHRISTOPHER J. NEWMAN BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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* |
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* Author: Christopher J. Newman |
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* Message: This is a nifty program. |
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* |
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* Created 9/1/88, Assembly Code 6/27/90 |
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*/ |
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|
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#ifdef THINK_C |
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typedef unsigned char PCstr; |
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|
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/* assembler function prototypes */ |
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void PtoPCstrcpy(void); |
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void CtoPCstrcpy(void); |
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void PCtoPCstrcpy(void); |
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void PtoPCstrncpy(void); |
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void CtoPCstrncpy(void); |
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void PtoPCstrcat(void); |
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void CtoPCstrcat(void); |
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PCstr *PtoPCstr(void); |
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PCstr *CtoPCstr(void); |
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void SetPlen(void); |
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PCstr *longtoPCstr(long); /* not in assembler */ |
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|
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void PtoPCstrcpy( /* PCstr *dest, *src */ ) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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clr.w d0 |
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move.b (a0),d0 |
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clr.b 1(a1,d0) |
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@loop: |
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move.b (a0)+,(a1)+ |
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dbf.w d0,@loop |
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} |
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} |
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|
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void CtoPCstrcpy( /* PCstr *dest, char *src */) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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addq.l #1,a1 |
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moveq.l #-1,d0 |
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@loop: |
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addq.w #1,d0 |
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move.b (a0)+,(a1)+ |
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bne.s @loop |
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movea.l 4(sp),a1 ; a1 = dest |
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move.b d0,(a1) |
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} |
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} |
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|
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void PCtoPCstrcpy( /* PCstr *dest, PCstr *src */) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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move.b (a0)+,(a1)+ |
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@loop: |
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move.b (a0)+,(a1)+ |
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bne.s @loop |
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} |
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} |
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|
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void PtoPCstrncpy( /* PCstr *dest, char *src, short n */) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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move.w 12(sp),d0 ; d0 = n |
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clr.w d1 |
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move.b (a0)+,d1 |
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cmp.w d0,d1 |
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bcc.s @skip |
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move.w d1,d0 |
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@skip: |
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move.b d0,(a1)+ |
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subq.w #1,d0 |
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bcs.s @exit |
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@loop: |
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move.b (a0)+,(a1)+ |
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dbf d0,@loop |
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@exit: |
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} |
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} |
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|
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void CtoPCstrncpy( /* PCstr *dest, char *src, short n */ ) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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addq.l #1,a1 |
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clr.w d1 |
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move.w 12(sp),d0 ; d0 = n |
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bra.s @skip |
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@loop: |
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addq.w #1,d1 |
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move.b (a0)+,(a1)+ |
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@skip: |
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dbeq.w d0,@loop |
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clr.b (a1) |
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movea.l 4(sp),a1 ; a1 = dest |
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subq.w #1,d1 |
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move.b d1,(a1) |
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} |
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} |
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|
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void PtoPCstrcat( /* PCstr *dest, char *src */ ) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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clr.w d0 |
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clr.w d1 |
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move.b (a0)+,d0 |
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move.b (a1),d1 |
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add.b d0,(a1) |
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lea.l 1(a1,d1),a1 |
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bra.s @skip |
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@loop: |
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move.b (a0)+,(a1)+ |
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@skip: |
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dbf.w d0,@loop |
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clr.b (a1) |
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} |
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} |
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|
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void CtoPCstrcat( /* PCstr *dest, char *src */ ) |
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{ |
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asm 68000 { |
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movea.l 8(sp),a0 ; a0 = src |
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movea.l 4(sp),a1 ; a1 = dest |
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clr.w d0 |
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move.b (a1),d0 |
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lea.l 1(a1,d0),a1 |
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subq.w #1,d0 |
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@loop: |
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addq.w #1,d0 |
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move.b (a0)+,(a1)+ |
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bne.s @loop |
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movea.l 4(sp),a1 ; a1 = dest |
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move.b d0,(a1) |
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} |
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} |
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|
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PCstr *PtoPCstr( /* char *str */ ) |
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{ |
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asm 68000 { |
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movea.l 4(sp),a0 ; a0 = str |
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clr.w d0 |
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move.b (a0),d0 |
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clr.b 1(a0,d0) |
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move.l a0,d0 |
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} |
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} |
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|
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PCstr *CtoPCstr( /* char *str */) |
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{ |
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asm 68000 { |
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movea.l 4(sp),a0 ; a0 = str |
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move.b (a0)+,d0 |
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lea.l (a0),a1 |
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@loop: |
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move.b (a1),d1 |
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move.b d0,(a1)+ |
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move.b d1,d0 |
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bne.s @loop |
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move.b d0,(a1) |
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suba.l a0,a1 |
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move.l a1,d0 |
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move.b d0,-(a0) |
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move.l a0,d0 |
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} |
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} |
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|
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void SetPlen( /* PCstr *pcstr */ ) |
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{ |
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asm 68000 { |
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movea.l 4(sp),a0 ; a0 = str |
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lea.l 1(a0),a1 |
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moveq.l #-1,d0 |
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@loop: |
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addq.w #1,d0 |
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@skip: |
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tst.b (a1)+ |
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bne.s @loop |
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move.b d0,(a0) |
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} |
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} |
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#else |
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/* C function prototypes in mac_napp.h */ |
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#include "macnapp.h" |
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|
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void PtoPCstrcpy(dest, src) |
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register PCstr *dest; |
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register char *src; |
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{ |
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register short i; |
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|
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i = Pstrlen(src); |
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C(dest)[i] = '\0'; |
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do { |
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*dest++ = *src++; |
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} while (i--); |
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} |
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|
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void CtoPCstrcpy(dest, src) |
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register PCstr *dest; |
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register char *src; |
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{ |
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register short i; |
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register char *cpy; |
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|
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cpy = C(dest); |
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for (i = 0; *cpy++ = *src++; i++); |
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*dest = i; |
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} |
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|
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void PCtoPCstrcpy(dest, src) |
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register PCstr *dest; |
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register PCstr *src; |
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{ |
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*dest++ = *src++; |
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while (*dest++ = *src++); |
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} |
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|
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void PtoPCstrncpy(PCstr *dest, char *src, short n) |
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{ |
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if (Pstrlen(src) < n) n = Pstrlen(src); |
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*dest++ = n; |
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src++; |
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while (n--) *dest++ = *src++; |
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*dest++ = '\0'; |
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} |
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|
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void CtoPCstrncpy(PCstr *dest, char *src, short n) |
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{ |
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register char *tmp; |
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register short i; |
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|
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tmp = C(dest); |
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for (i = 0; n-- && (*tmp++ = *src++); i++); |
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*tmp = '\0'; |
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*dest = i; |
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} |
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|
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void PtoPCstrcat(dest, src) |
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register PCstr *dest; |
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register char *src; |
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{ |
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register short i; |
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register short j; |
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|
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i = *dest; |
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*dest += (j = (unsigned char) *src++); |
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dest += i + 1; |
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while (j--) *dest++ = *src++; |
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*dest = '\0'; |
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} |
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|
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void CtoPCstrcat(dest, src) |
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register PCstr *dest; |
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register char *src; |
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{ |
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register short i; |
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register char *tmp; |
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|
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tmp = (char *) dest + (i = *dest) + 1; |
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while (*tmp++ = *src++) i++; |
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*dest = i; |
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} |
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|
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PCstr *PtoPCstr(str) |
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register char *str; |
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{ |
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SetClen((PCstr*) str); |
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|
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return ((PCstr*) str); |
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} |
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|
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PCstr *CtoPCstr(str) |
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register char *str; |
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{ |
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register PCstr i; |
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register char c, d; |
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register char *tmp; |
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|
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i = 0; |
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tmp = str; |
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tmp++; |
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c = *tmp++; |
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do { |
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d = *tmp; |
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*tmp++ = c; |
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i++; |
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} while (c = d); |
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(*(PCstr*)str) = i; |
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|
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return ((PCstr*) str); |
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} |
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|
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void SetPlen(pcstr) |
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register PCstr *pcstr; |
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{ |
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register short i = -1; |
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register char *len = C(pcstr); |
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|
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do { |
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i++; |
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} while (*len++); |
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|
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*pcstr = i; |
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} |
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#endif |
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|
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/* simple procedure to convert decimal number of |
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* less than 20 digits to a PC string. |
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* Compiling with 68020 option makes this quite a bit more efficient. |
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*/ |
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PCstr *longtoPCstr(i) |
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register long i; |
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{ |
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static PCstr sbuf[21]; |
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register Boolean negflag; |
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register unsigned long val, ten = 10; |
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register PCstr *pos = sbuf + sizeof (sbuf) - 1; |
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register PCstr *posst; |
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|
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*pos = '\0'; |
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posst = --pos; |
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negflag = false; |
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val = i; |
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if (i < 0) { |
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negflag = true; |
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val = -i; |
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} |
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do { |
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*pos = (unsigned short) (val % ten) + '0'; |
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pos--; |
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} while (val /= ten); |
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if (negflag) { |
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*pos = '-'; |
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pos--; |
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} |
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*pos = posst - pos; |
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|
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return (pos); |
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} |
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