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55 lines
2.0 KiB
ArmAsm
55 lines
2.0 KiB
ArmAsm
; @(#)_read.s 1.4 90/10/14 21:57:32, AMD
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; Copyright 1990 Advanced Micro Devices, Inc.
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;
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; This software is the property of Advanced Micro Devices, Inc (AMD) which
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; specifically grants the user the right to modify, use and distribute this
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; software provided this notice is not removed or altered. All other rights
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; are reserved by AMD.
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;
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; AMD MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS
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; SOFTWARE. IN NO EVENT SHALL AMD BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
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; DAMAGES IN CONNECTION WITH OR ARISING FROM THE FURNISHING, PERFORMANCE, OR
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; USE OF THIS SOFTWARE.
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;
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; So that all may benefit from your experience, please report any problems
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; or suggestions about this software to the 29K Technical Support Center at
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; 800-29-29-AMD (800-292-9263) in the USA, or 0800-89-1131 in the UK, or
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; 0031-11-1129 in Japan, toll free. The direct dial number is 512-462-4118.
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;
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; Advanced Micro Devices, Inc.
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; 29K Support Products
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; Mail Stop 573
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; 5900 E. Ben White Blvd.
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; Austin, TX 78741
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; 800-292-9263
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; _read.s
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; int nread = _read( int fd, char *buf, int count );
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;
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.file "_read.s"
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.include "sys/sysmac.h"
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.text
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.word 0x00050000 ; Debugger tag word
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.global __read
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;; syscalls used now -- .global _read
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__read:
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;; syscalls used now -- _read:
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.ifdef _BSD_OS
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; 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
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sub msp, msp, 8
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store 0, 0, lr3, msp
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add tav, msp, 4
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add lr3, msp, 0
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store 0, 0, lr4, tav
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const lr4, 1
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const tav,HIF_readv @ asneq V_SYSCALL,gr1,gr1
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jmpti tav, lr0
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add msp, msp, 8
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const tpc,_errno @ consth tpc,_errno @ store 0,0,tav,tpc @ jmpi lr0 @ constn v0,-1
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.else
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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
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.endif
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.end
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