2004-02-15 20:46:45 +00:00
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/*
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*
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* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
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*
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2005-05-22 21:11:05 +00:00
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* Some parts from libgcc routines for 68000 w/o floating-point hardware.
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* Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
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*
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2004-02-15 20:46:45 +00:00
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*/
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2005-05-22 21:11:05 +00:00
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.chip 68000
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.align 2
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.globl __mulsi3
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__mulsi3:
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movew %sp@(4), %d0 /* x0 -> %d0 */
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muluw %sp@(10), %d0 /* x0*y1 */
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movew %sp@(6), %d1 /* x1 -> %d1 */
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muluw %sp@(8), %d1 /* x1*y0 */
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addl %d1, %d0
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swap %d0
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clrw %d0
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movew %sp@(6), %d1 /* x1 -> %d1 */
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muluw %sp@(10), %d1 /* x1*y1 */
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addl %d1, %d0
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rts
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.globl __udivsi3
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__udivsi3:
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movel %d2, %sp@-
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movel %sp@(12), %d1 /* %d1 = divisor */
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movel %sp@(8), %d0 /* %d0 = dividend */
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cmpl #0x10000, %d1 /* divisor >= 2 ^ 16 ? */
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jcc __udivsi3L3 /* then try next algorithm */
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movel %d0, %d2
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clrw %d2
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swap %d2
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divu %d1, %d2 /* high quotient in lower word */
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movew %d2, %d0 /* save high quotient */
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swap %d0
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movew %sp@(10), %d2 /* get low dividend + high rest */
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divu %d1, %d2 /* low quotient */
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movew %d2, %d0
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jra __udivsi3L6
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__udivsi3L3: movel %d1, %d2 /* use %d2 as divisor backup */
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__udivsi3L4: lsrl #1, %d1 /* shift divisor */
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lsrl #1, %d0 /* shift dividend */
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cmpl #0x10000, %d1 /* still divisor >= 2 ^ 16 ? */
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jcc __udivsi3L4
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divu %d1, %d0 /* now we have 16-bit divisor */
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andl #0xffff, %d0 /* mask out divisor, ignore remainder */
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/* Multiply the 16-bit tentative quotient with the 32-bit divisor. Because of
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the operand ranges, this might give a 33-bit product. If this product is
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greater than the dividend, the tentative quotient was too large. */
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movel %d2, %d1
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mulu %d0, %d1 /* low part, 32 bits */
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swap %d2
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mulu %d0, %d2 /* high part, at most 17 bits */
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swap %d2 /* align high part with low part */
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tstw %d2 /* high part 17 bits? */
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jne __udivsi3L5 /* if 17 bits, quotient was too large */
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addl %d2, %d1 /* add parts */
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jcs __udivsi3L5 /* if sum is 33 bits, quotient was too large */
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cmpl %sp@(8), %d1 /* compare the sum with the dividend */
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jls __udivsi3L6 /* if sum > dividend, quotient was too large */
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__udivsi3L5: subql #1, %d0 /* adjust quotient */
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__udivsi3L6: movel %sp@+, %d2
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rts
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.globl __divsi3
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__divsi3:
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movel %d2, %sp@-
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moveq #1, %d2 /* sign of result stored in %d2 (=1 or =-1) */
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movel %sp@(12), %d1 /* %d1 = divisor */
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jpl __divsi3L1
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negl %d1
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negb %d2 /* change sign because divisor <0 */
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__divsi3L1: movel %sp@(8), %d0 /* %d0 = dividend */
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jpl __divsi3L2
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negl %d0
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negb %d2
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__divsi3L2: movel %d1, %sp@-
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movel %d0, %sp@-
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bsr __udivsi3 /* divide abs(dividend) by abs(divisor) */
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addql #8, %sp
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tstb %d2
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jpl __divsi3L3
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negl %d0
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__divsi3L3: movel %sp@+, %d2
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rts
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.globl __umodsi3
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__umodsi3:
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movel %sp@(8), %d1 /* %d1 = divisor */
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movel %sp@(4), %d0 /* %d0 = dividend */
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movel %d1, %sp@-
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movel %d0, %sp@-
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bsr __udivsi3
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addql #8, %sp
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movel %sp@(8), %d1 /* %d1 = divisor */
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movel %d1, %sp@-
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movel %d0, %sp@-
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bsr __mulsi3 /* %d0 = (a/b)*b */
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addql #8, %sp
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movel %sp@(4), %d1 /* %d1 = dividend */
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subl %d0, %d1 /* %d1 = a - (a/b)*b */
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movel %d1, %d0
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rts
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.globl __modsi3
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__modsi3:
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movel %sp@(8), %d1 /* %d1 = divisor */
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movel %sp@(4), %d0 /* %d0 = dividend */
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movel %d1, %sp@-
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movel %d0, %sp@-
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bsr __divsi3
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addql #8, %sp
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movel %sp@(8), %d1 /* %d1 = divisor */
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movel %d1, %sp@-
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movel %d0, %sp@-
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bsr __mulsi3 /* %d0 = (a/b)*b */
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addql #8, %sp
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movel %sp@(4), %d1 /* %d1 = dividend */
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subl %d0, %d1 /* %d1 = a - (a/b)*b */
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movel %d1, %d0
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rts
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2004-02-15 20:46:45 +00:00
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/* #include <ConditionalMacros.h>
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* #include <Quickdraw.h>
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*/
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.globl glue_display_properties
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.type glue_display_properties,@function
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/*
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* void
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* glue_display_properties(unsigned long *base, unsigned long *row_bytes,
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* unsigned long *width, unsigned long *height,
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2004-02-21 01:47:02 +00:00
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* unsigned long *depth, unsigned long* video)
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2004-02-15 20:46:45 +00:00
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*/
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glue_display_properties:
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/*
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* GDHandle hdl;
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* volatile PixMapPtr pm;
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*/
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link.w %a6,#-4
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movm.l #0x3c,-(%sp)
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2004-02-21 01:47:02 +00:00
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move.l 28(%a6),%a3 /* unsigned long *video */
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move.l 12(%a6),%a5 /* unsigned long *row_bytes */
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move.l 24(%a6),%a4 /* unsigned long *depth */
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2004-02-15 20:46:45 +00:00
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/* hdl = LMGetMainDevice(); */
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move.l 0x08A4,%a0
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/* if (hdl == NULL || (**hdl).gdPMap == NULL)
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* return;
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*/
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2005-05-17 23:28:33 +00:00
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cmpa.l #0, %a0
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2004-02-15 20:46:45 +00:00
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jbeq .exit
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move.l (%a0),%a0
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tst.l 22(%a0)
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jbeq .exit
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/* pm = *(**hdl).gdPMap; */
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move.l 22(%a0),%a0
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/* if (pm->baseAddr == NULL)
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* return;
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*/
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move.l (%a0),-4(%a6)
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move.l -4(%a6),%a0
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tst.l (%a0)
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jbeq .exit
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2004-02-21 01:47:02 +00:00
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/* *video = (unsigned char *)pm->baseAddr; */
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2004-02-15 20:46:45 +00:00
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move.l -4(%a6),%a0
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move.l (%a0),(%a3)
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/* *row_bytes = pm->rowBytes & 0x3fff; */
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move.l -4(%a6),%a0
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move.w 4(%a0),%d0
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and.l #16383,%d0
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move.l %d0,(%a5)
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/* *width = pm->bounds.right - pm->bounds.left; */
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move.l -4(%a6),%a0
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move.w 12(%a0),%a2
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move.l -4(%a6),%a1
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move.l 16(%a6),%a0
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sub.w 8(%a1),%a2
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move.l %a2,(%a0)
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/* *height = pm->bounds.bottom - pm->bounds.top; */
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move.l -4(%a6),%a0
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move.w 10(%a0),%a2
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move.l -4(%a6),%a1
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move.l 20(%a6),%a0
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sub.w 6(%a1),%a2
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move.l %a2,(%a0)
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/* *depth = pm->pixelSize; */
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move.l -4(%a6),%a0
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move.w 32(%a0),%a0
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move.l %a0,(%a4)
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/* if (*depth == 15) *depth = 16; */
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moveq.l #15,%d0
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cmp.l %a0,%d0
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jbne .not_15
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moveq.l #16,%d0
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move.l %d0,(%a4)
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.not_15:
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2004-02-21 01:47:02 +00:00
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/* (*base) = (*video) */
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move.l (%a3),%d0
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move.l 8(%a6),%a3 /* unsigned long *base */
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move.l %d0,(%a3)
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/* (*base) = (*video) + pm->bounds.top * *row_bytes; */
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2004-02-15 20:46:45 +00:00
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move.l -4(%a6),%a0
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move.w 6(%a0),%d0
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2005-05-17 23:28:33 +00:00
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/* add 68000 support,
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*
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* row_bytes can be stored on a short
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*
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*/
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move.l (%a5), %d1
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2005-05-22 21:11:05 +00:00
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muls.w %d1, %d0
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2005-05-17 23:28:33 +00:00
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2004-02-15 20:46:45 +00:00
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add.l %d0,(%a3)
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/* (*base) += pm->bounds.left * ((*depth) >> 3); */
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move.l -4(%a6),%a0
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move.w 8(%a0),%d1
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move.l (%a4),%d0
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lsr.l #3,%d0
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2005-05-17 23:28:33 +00:00
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/* add 68000 support,
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*
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* NOTE: depth can be stored on a short
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*
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*/
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2005-05-22 21:11:05 +00:00
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muls.w %d0, %d1
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2005-05-17 23:28:33 +00:00
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2004-02-15 20:46:45 +00:00
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add.l %d1,(%a3)
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.exit:
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movm.l (%sp)+,#0x3c00
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unlk %a6
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rts
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/* OSErr Gestalt(OSType selector, long * response) */
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.global Gestalt
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Gestalt:
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link %fp, #0
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move.l 8(%fp), %d0
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dc.w 0xA1AD /* Gestalt */
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move.l 12(%fp), %a1
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move.l %a0, %a1@
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unlk %fp
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rts
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2004-02-24 22:30:14 +00:00
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/* void ReadLocation(MachineLocation * loc) */
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.global ReadLocation
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ReadLocation:
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link %fp, #0
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move.l 8(%fp), %a0
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move.l #0x000C00E4, %d0 /* ReadLocation */
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dc.w 0xA051 /* ReadXPRam */
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unlk %fp
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rts
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2004-05-25 19:30:23 +00:00
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2004-05-25 20:14:08 +00:00
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/* void* NewPtr(unsigned long byteCount) */
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2004-05-25 19:30:23 +00:00
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.global NewPtr
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NewPtr:
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link %fp, #0
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move.l 8(%fp), %d0
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dc.w 0xA11E /* NewPtr */
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move.l %a0, %d0
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unlk %fp
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rts
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/* void DisposePtr(void* ptr) */
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|
|
.global DisposePtr
|
|
|
|
|
DisposePtr:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %a0
|
|
|
|
|
dc.w 0xA01F /* DisposePtr */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
2004-05-26 21:32:13 +00:00
|
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|
2004-06-18 15:37:08 +00:00
|
|
|
/* OSErr PBReadSync(ParamBlockRec_t* paramBlock) */
|
2004-05-26 21:32:13 +00:00
|
|
|
|
|
|
|
|
.global PBReadSync
|
|
|
|
|
PBReadSync:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %a0
|
|
|
|
|
dc.w 0xA002 /* PBReadSync */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
2004-06-18 15:37:08 +00:00
|
|
|
|
2004-06-21 22:41:30 +00:00
|
|
|
/* OSErr PBWriteSync(ParamBlockRec_t* paramBlock) */
|
|
|
|
|
|
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|
|
|
.global PBWriteSync
|
|
|
|
|
PBWriteSync:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %a0
|
|
|
|
|
dc.w 0xA003 /* PBWriteSync */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
2004-06-18 15:37:08 +00:00
|
|
|
/* OSErr PBOpenSync(ParmBlkPtr paramBlock) */
|
|
|
|
|
|
|
|
|
|
.global PBOpenSync
|
|
|
|
|
PBOpenSync:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %a0
|
|
|
|
|
dc.w 0xA000 /* PBOpenSync */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr PBCloseSync(ParmBlkPtr paramBlock) */
|
|
|
|
|
|
|
|
|
|
.global PBCloseSync
|
|
|
|
|
PBCloseSync:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %a0
|
|
|
|
|
dc.w 0xA001 /* PBCloseSync */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr PBControlSync(ParmBlkPtr paramBlock) */
|
|
|
|
|
|
|
|
|
|
.global PBControlSync
|
|
|
|
|
PBControlSync:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %a0
|
|
|
|
|
dc.w 0xA004 /* PBControlSync */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
2004-08-18 23:17:17 +00:00
|
|
|
/* void SysError(short errorCode) */
|
|
|
|
|
|
|
|
|
|
.global SysError
|
|
|
|
|
SysError:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %d0
|
|
|
|
|
dc.w 0xA9C9 /* SysError */
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
2004-12-01 00:11:36 +00:00
|
|
|
|
|
|
|
|
#if defined(SCSI_SUPPORT)
|
|
|
|
|
|
|
|
|
|
/* SCSI support */
|
|
|
|
|
|
|
|
|
|
.equ _SCSIReset, 0x0000
|
|
|
|
|
.equ _SCSIGet, 0x0001
|
|
|
|
|
.equ _SCSISelect, 0x0002
|
|
|
|
|
.equ _SCSICmd, 0x0003
|
|
|
|
|
.equ _SCSIComplete, 0x0004
|
|
|
|
|
.equ _SCSIRead, 0x0005
|
|
|
|
|
.equ _SCSIWrite, 0x0006
|
|
|
|
|
|
|
|
|
|
.macro SCSIDispatch selector
|
|
|
|
|
move.w #\selector, -(%sp)
|
|
|
|
|
dc.w 0xA815 /* _SCSIDispatch */
|
|
|
|
|
move.w (%sp)+, %d0
|
|
|
|
|
ext.l %d0
|
|
|
|
|
.endm
|
|
|
|
|
|
|
|
|
|
/* OSErr SCSIReset(void) */
|
|
|
|
|
|
|
|
|
|
.global SCSIReset
|
|
|
|
|
SCSIReset:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
clr.w -(%sp)
|
|
|
|
|
SCSIDispatch(_SCSIReset)
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr SCSIGet(void) */
|
|
|
|
|
|
|
|
|
|
.global SCSIGet
|
|
|
|
|
SCSIGet:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
clr.w -(%sp)
|
|
|
|
|
SCSIDispatch(_SCSIGet)
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr SCSISelect(short targetID) */
|
|
|
|
|
|
|
|
|
|
.global SCSISelect
|
|
|
|
|
SCSISelect:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %d0 /* targetID */
|
|
|
|
|
clr.w -(%sp)
|
|
|
|
|
move.w %d0, -(%sp)
|
|
|
|
|
SCSIDispatch(_SCSISelect)
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr SCSICmd(void* buffer, short count) */
|
|
|
|
|
|
|
|
|
|
.global SCSICmd
|
|
|
|
|
SCSICmd:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %d0 /* buffer */
|
|
|
|
|
move.l 12(%fp), %d1 /* count */
|
|
|
|
|
clr.w -(%sp)
|
|
|
|
|
move.l %d0, -(%sp) /* buffer */
|
|
|
|
|
move.w %d1, -(%sp) /* count */
|
|
|
|
|
SCSIDispatch(_SCSICmd)
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr SCSIRead(void *tibPtr) */
|
|
|
|
|
|
|
|
|
|
.global SCSIRead
|
|
|
|
|
SCSIRead:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l 8(%fp), %d0 /* tibPtr */
|
|
|
|
|
clr.w -(%sp)
|
|
|
|
|
move.l %d0, -(%sp)
|
|
|
|
|
SCSIDispatch(_SCSIRead)
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
/* OSErr SCSIComplete(short *stat, short *message, unsigned long wait)*/
|
|
|
|
|
|
|
|
|
|
.global SCSIComplete
|
|
|
|
|
SCSIComplete:
|
|
|
|
|
link %fp, #0
|
|
|
|
|
move.l %d0, -(%sp)
|
|
|
|
|
move.l 8(%fp), %d0 /* stat */
|
|
|
|
|
move.l 12(%fp), %d1 /* message */
|
|
|
|
|
move.l 16(%fp), %d2 /* wait */
|
|
|
|
|
clr.w -(%sp)
|
|
|
|
|
move.l %d0, -(%sp)
|
|
|
|
|
move.l %d1, -(%sp)
|
|
|
|
|
move.l %d2, -(%sp)
|
|
|
|
|
SCSIDispatch(_SCSIComplete)
|
|
|
|
|
unlk %fp
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
#endif /* SCSI_SUPPORT */
|
