IBM PC CONVERTIBLE Technical Reference page 246

OBB7 EB BA
OBB9
OBB9 C3
OBBA
JMP SHORT RES_LPO
RES_EXIT:
RET
RES_ERR_CHK ENDP
GO LOOK FOR MORE ERRORS
Diskette I/O Entry (DISKETIE-IO)
; *****************************************************
; DISKETTE I/O ENTRY POINT
; *****************************************************
;ORG OEC59H
OC59
ORG 00C59H
=
OC59 DISKETTE_IO EQU
OC59 E9 0000 JMP DSKLIO
Icon and Error Message Routine
(E_MSG)
OCSC
OC5C IE
OC5D 06
******************************************************************
ROUTINE-NAME: LMSG
FUNCTION: THIS ROUTINE DISPLAYS ICONS AND ERROR MESSAGES FOR POST
ENTRY CONDITIONS:
PURPOSE OF ENTRY: TO DISPLAY A POST ICON AND/OR ERROR MESSAGE
INPUT CONDITIONS: AX
=
ERROR CODE ; IF AH
=
0 THEN NO ERROR
CODE , ONLY AN ICON
ES:DI
=
POINTS TO AN ADDITIONAL ASCII ERROR
MESSAGE. IF 01
=
0 THEN NO MESSAGE
CL
=
I CON NUMBER TO 01 SPLAY
RESTRICTIONS: NONE
EXIT CONDITIONS:
NORMAL EXIT CONDITIONS:
ERROR EX IT COND IT IONS:
REGISTERS MODIFIED: AX,BX,CX,DX,BP,DI,SI
INTERNALL Y REFERENCED ROUTI NES: NONE
EXTERNALL Y REFERENCED ROUTI NES: STR_CON
******************************************************************
ASSUME CS: ROMCODE
ASSUME DS:XXDATA
ASSUME ES:NOTHING
LMSG PROC NEAR
PUSH OS SAVE SEGMENT REGS
PUSH ES
ROM BIOS 2-221