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;***
;rterr.inc - Runtime Error Messages
;
; Copyright (c) 1988-1990, Microsoft Corporation. All rights reserved.
;
;Purpose:
; This file contains all of the fatal C library runtime error
; messages and a macro that allows routines to easily set up
; the message format.
;
;*******************************************************************************


;
; --- Runtime Error Constants ---
; [NOTE: These must be 3-char strings (see _RTERR macro).]
;

_RT_STACK equ <000> ; stack overflow
_RT_NULLPTR equ <001> ; null pointer assignment
_RT_FLOAT equ <002> ; floating point not loaded
_RT_INTDIV equ <003> ; integer divide by 0
; <004>
;--- The following 3 EXEC message must be in order (see DOS exec code) ---
_RT_EXECMEM equ <005> ; not enough memory on exec
_RT_EXECFORM equ <006> ; bad format on exec
_RT_EXECENV equ <007> ; bad environment on exec
;---
_RT_SPACEARG equ <008> ; not enough space for arguments
_RT_SPACEENV equ <009> ; not enough space for environment
_RT_ABORT equ <010> ; Abnormal program termination
; <011>
_RT_NPTR equ <012> ; illegal near pointer use
_RT_FPTR equ <013> ; illegal far pointer use
_RT_BREAK equ <014> ; control-BREAK encountered (QC 1.0 only)
_RT_INT equ <015> ; unexpected interrupt (QC 1.0 only)
_RT_THREAD equ <016> ; not enough space for thread data
_RT_LOCK equ <017> ; unexpected multi-thread lock error
_RT_HEAP equ <018> ; unexpected heap error
_RT_CRNL equ <252> ; \r\n
_RT_BANNER equ <255> ; runtime error (banner)

;
; The 3 EXEC messages must be in order for DOS (see DOS exec code).
;

.ERRE (_RT_EXECFORM EQ _RT_EXECMEM+1)
.ERRE (_RT_EXECENV EQ _RT_EXECFORM+1)

;
; --- Message types ---
; [See _RTERR macro description for info on these types.]
;

_RT_STANDARD equ 1
_RT_STRING equ 2
_RT_DOLLAR equ 3


;***
; _RTERR - Macro to generate runtime error message data entries
;
;Purpose:
;
; Generate the appropriate data format for
; various types of runtime error messages.
;
; Standard C library error numbers have the format:
;
; R6
;
; where:
; R = Error occurred at runtime
; 6 = C library routine error series
; = 3-digit code indicating the error that occurred
;
;Entry:
; errnum = runtime error number (one of the above parameters)
; errmsg = ascii string with error message in it
; msgtype = message type:
; _RT_STANDARD = standard 'R6' message format
; _RT_STRING = simply store the supplied string
; _RT_DOLLAR = terminate message with '$'
; (for use with DOS EXEC messages)
;
;Exit:
; Allocate storage as follows:
;
; _RT_STANDARD:
; dw
; db 'R6',13,10,'- ',13,10,0
;
; _RT_STRING:
; dw
; db '',0
;
; _RT_DOLLAR:
; dw
; db 13,10,'run-time error '
; db 'R6',13,10,'- ',13,10,'$',0
;
;Exceptions:
;
;*******************************************************************************


;
; Form the message data as follows:
; (1) Store the error number
; (2) Form the appropriate ascii message (based on message type)
; (3) Terminate message with a null char
;
; [To get masm to store the ascii value of the error number, prepend a
; '%' char to the errnum arg and call a second macro to build the string.]
;

_RTERR MACRO errnum, errmsg, msgtype
_RTERR1 %&errnum, , msgtype
ENDM

_RTERR1 MACRO errnum, errmsg, msgtype
dw errnum
IF (msgtype EQ _RT_STANDARD)
db 'R6&errnum',13,10,'- ',&errmsg,13,10
ELSEIF (msgtype EQ _RT_STRING)
db &errmsg
ELSEIF (msgtype EQ _RT_DOLLAR)
db 13,10,'run-time error '
db 'R6&errnum',13,10,'- ',&errmsg,13,10,'$'
ELSE
%OUT Unknown _RTERR option
.ERR
ENDIF
db 0
ENDM