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extgfx.s
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1991-06-08
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55 lines
opt l+,o+,ow-
*
* extgfx.s version 8.1 - © Copyright 1990 Jaba Development
*
* Author : Jan van den Baard
* Assembler : Devpac vesion 2.14
*
incdir 'sys:devpac_inc/'
include 'mymacros.i'
include 'intuition/intuition.i'
include 'exec/memory.i'
include 'graphics/graphics_lib.i'
include 'intuition/intuition_lib.i'
include 'exec/exec_lib.i'
XREF _GfxBase
XREF DoBuf
XREF StrLen
XDEF FormatText
FormatText: movem.l a2-a6,-(sp)
move.l a2,a4 ; arguments to a4
move.l a1,a3 ; format string to a3
move.l a0,a2 ; rastport to a2
move.l (_SysBase).w,a6
move.l #512,d0 ; 512 bytes MAXIMUM
moveq #MEMF_PUBLIC,d1
libcall AllocMem ; allocate buffer
move.l d0,a5
beq.s NoMem ; buffer allocation failed
movem.l a2-a3,-(sp) ; save registers
move.l a3,a0
move.l a4,a1
move.l #DoBuf,a2
move.l a5,a3
libcall RawDoFmt ; format the string
movem.l (sp)+,a2-a3 ; restore registers
move.l _GfxBase,a6
move.l a5,a0
bsr StrLen
move.l d0,-(sp)
move.l a5,a0 ; string in a0
move.l a2,a1 ; rastport in a1
libcall Text ; print the string
move.l (_SysBase).w,a6
move.l a5,a1
move.l #512,d0 ; free the buffer
libcall FreeMem
move.l (sp)+,d0
bra.s EndFT
NoMem: cldat d0
EndFT: movem.l (sp)+,a2-a6
rts