TITLE	"Z3MSGD - Z3lib 4.0"
;================================================================
;   The Libraries, Version 4, (C) 1989 by Alpha Systems Corp.
;----------------------------------------------------------------
; Author  : Harold F. Bower
;		Derived from Z3MSGD.Z80 Ver 1.1 by Richard Conn
; Date    : 2 May 92
; Version : 1.3
; Module  : Z3MSGD
; Abstract: This module contains the routine PUTREG which sets
;	the specified message register to the specified value
; Revision:
;  1.3 -  2 May 92 - Abort if No ENV/Message Buffer.		HFB
;  1.2 - 15 Mar 87 - Original Ver 4 release.			HFB
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

;  Module Entry Points

	PUBLIC		PUTREG

;  External References

	EXT		GETMSG, @PUT1

	.Z80
	CSEG
;===============================================================
; NAME - PUTREG
; Entry:  B - Contains the number of the specified register
;	  A - Contains the value to place in "B" register
; Exit : - None, the register value is set
; Uses : - None
; Special Requirements: None
;===============================================================

PUTREG:	PUSH	HL		;save HL
	PUSH	DE		;save DE
	PUSH	AF		;save value
	CALL	GETMSG		;get ptr to messages
	JR	Z,PUTRER	;1.3 ..exit if No ENV/Message Buffer
	LD	DE,30H		;offset to registers
	ADD	HL,DE
	LD	E,B		;get register number for 16-bit add
	JP	@PUT1		; ..Offset and save byte

PUTRER:	POP	AF		;1.3 Restore Regs
	POP	DE		;1.3
	POP	HL		;1.3
	RET			;1.3 ..return to caller

	END