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; @(#)_read.s   1.4 90/10/14 21:57:32, AMD
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; Copyright 1990 Advanced Micro Devices, Inc.
;
; This software is the property of Advanced Micro Devices, Inc  (AMD)  which
; specifically  grants the user the right to modify, use and distribute this
; software provided this notice is not removed or altered.  All other rights
; are reserved by AMD.
;
; AMD MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS
; SOFTWARE.  IN NO EVENT SHALL AMD BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
; DAMAGES IN CONNECTION WITH OR ARISING FROM THE FURNISHING, PERFORMANCE, OR
; USE OF THIS SOFTWARE.
;
; So that all may benefit from your experience, please report  any  problems
; or  suggestions about this software to the 29K Technical Support Center at
; 800-29-29-AMD (800-292-9263) in the USA, or 0800-89-1131  in  the  UK,  or
; 0031-11-1129 in Japan, toll free.  The direct dial number is 512-462-4118.
;
; Advanced Micro Devices, Inc.
; 29K Support Products
; Mail Stop 573
; 5900 E. Ben White Blvd.
; Austin, TX 78741
; 800-292-9263
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; _read.s
;       int nread = _read( int fd, char *buf, int count );
;
        .file   "_read.s"
        .include "sys/sysmac.h"
        .text
        .word   0x00050000              ; Debugger tag word
        .global __read
;; syscalls used now --         .global _read

__read:
;; syscalls used now -- _read:
        .ifdef  _BSD_OS
;               BSD version - uses readv const tav,HIF_call @ asneq V_SYSCALL,gr1,gr1 @ jmpti tav,lr0 @ const tpc,_errno @ consth tpc,_errno @ store 0,0,tav,tpc @ jmpi lr0 @ constn v0,-1
        sub     msp, msp, 8
        store   0, 0, lr3, msp
        add     tav, msp, 4
        add     lr3, msp, 0
        store   0, 0, lr4, tav
        const   lr4, 1
        const tav,HIF_readv @ asneq V_SYSCALL,gr1,gr1
        jmpti   tav, lr0
        add     msp, msp, 8
        const tpc,_errno @ consth tpc,_errno @ store 0,0,tav,tpc @ jmpi lr0 @ constn v0,-1
        .else
        const tav,HIF_read @ asneq V_SYSCALL,gr1,gr1 @ jmpti tav,lr0 @ const tpc,_errno @ consth tpc,_errno @ store 0,0,tav,tpc @ jmpi lr0 @ constn v0,-1
        .endif
        .end