Simple 8086 Assembly String Array and Printing - arrays

Question

I have to write a program for my Assembly class that allows the user to enter his/her full name and the program then utilizes and array to store the characters and print them in the following order: "LastName", "Middle"(Optional and can have more than one middle name" "First". I have gotten my program to almost do this except it prints out a '$' at the start of the Last name. I have tried incrementing the index (bx) but then it gives me a garbled output. I am fairly new to assembly so please bear with me. I am thinking my macros might be interfering with my output when I increment the index. Also please bear with my formatting. I can never transfer code correctly. Thanks in Advance!
Here is my code:
;This Program Reads in a user's full name and prints out the results in the format
'Lastname', 'Middle'(Optional), First using an array.
include pcmac.inc
.MODEL SMALL
.586 ;Allows Pentium instructions. Must come after .MODEL
.STACK 100h
.DATA
MAXBUF EQU 100
GetBuf DB MAXBUF
GetCnt DB ?
CharStr DB MAXBUF DUP (?)
Message DB 'Enter your full name',10,13,'$'
Message2 DB 'Here is your name in the correct format', 10,13,'$'
Count DB 0
.CODE
Array PROC
_Begin
_PutStr Message
_GetStr GetBuf
mov bl, GetCnt
sub bh,bh
FindLast:
cmp [CharStr+bx],32
je SeperateLast
dec bx
inc Count ;Counter to record how long the lastname is
jmp FindLast
SeperateLast:
mov [CharStr+bx],'$'
_PutStr Message2
jmp Printlast
FirstName:
_PutCh ',',32 ;Add comma and space for readability
_PutStr CharStr ;Print up to the inputted dollar sign
_PutCh 10,13
jmp Done
Printlast:
cmp Count,0
je FirstName
_PutCh[CharStr+bx] ;Print Last Name Character by Character
inc bx
dec Count
jmp Printlast
Done:
_Exit 0
Array ENDP
END Array

Answer 1

From what I can see in your code, you seem to be properly finding the last name. Since the space before the last name represents the end of the First and Middle name it makes sense to replace the space with the $ sign just before the last name. Since BX is the offset of the dollar sign you just put in, you should increment BX by one to skip over it. You then need to decrement the Count variable by 1 as well.
This code:
mov [CharStr+bx],'$'
_PutStr Message2
jmp Printlast
Should probably be something like:
mov [CharStr+bx],'$'
inc bx
dec Count
_PutStr Message2
jmp Printlast