PrintMem and bug fixes

8 files changed, 250 insertions, 132 deletions

diff --git a/cmpen472hw6_McDonnell/Sources/main.asm b/cmpen472hw6_McDonnell/Sources/main.asm
index 923c8b9..62592ce 100644
--- a/cmpen472hw6_McDonnell/Sources/main.asm
+++ b/cmpen472hw6_McDonnell/Sources/main.asm
@@ -77,9 +77,13 @@ Counter     dc.w        $0036           ; X register count number for time Delay
 
 LEVEL       dc.b        $0005           ; Light Level that the LED should be
 
-buffer      ds.b        $000F           ; Array of 16 bytes to read a string
-            dc.b        NULL
-lenBuf      dc.w        $000F           ; Length of str array
+buffer      ds.b        $0010           ; Array of 16 bytes to read a string
+            dc.b        NULL            ; NULL terminated
+lenBuf      dc.w        $0010           ; Length of buffer array
+
+buffer2     ds.b        $0010           ; Array of 16 bytes for reading and reversal
+            dc.b        NULL            ; NULL terminated
+lenBuf2     dc.w        $0010           ; length of buffer2
 * There is a second Data Section at the end of the file.
 *
 **************************************************************************
@@ -127,6 +131,9 @@ mainLoop
             ldaa        #LF
             jsr         putchar
             
+            ldx         #Counter
+            jsr         PrintMem
+            
             bra         mainLoop
             
             ldx         #msg            ; Load the address of msg into X
@@ -172,6 +179,61 @@ twReadLoop  jsr         getchar         ; Read Character from Serial
 
 CheckInput
             rts                         ; Return to caller
+            
+            
+PrintMem
+            pshy                        ; Save Y to the Stack
+            pshd                        ; Save D to the Stack
+            exg         x,d             ; Copy Address from X to D to print
+            ldy         #buffer         ; Load the address of buffer into Y
+            jsr         PrintHexWord    ; Print the Address in Hex
+            exg         d,x             ; Copy Address from D to X
+            ldaa        #'='            ; Load the '=' character into A
+            jsr         putchar         ; Print the character to the seriel
+            ldaa        #'>'            ; Load the  '>' character into A
+            jsr         putchar         ; Print the character to the seriel
+            ldd         x               ; Load data from address in X into D
+            ldx         #buffer         ; Load the address of the buffer into X
+            ldy         lenBuf          ; Load the length of the buffer into Y
+            jsr         Zeros           ; Fill the buffer with Zeros
+            jsr         PrintBinaryWord ; Print the binary word to the seriel
+            psha                        ; Save A to the stack
+            ldaa        #' '            ; Load Space character into A
+            jsr         putchar         ; Print Space character to the seriel
+            jsr         putchar         ; Print Space character to the seriel
+            pula                        ; Restore A from the stack
+            ldy         #buffer         ; Load the address of the buffer into Y
+            jsr         PrintHexWord    ; Prin the hex representation of the word to seriel
+            psha                        ; Save A to the stack
+            ldaa        #' '            ; Load Space character into A
+            jsr         putchar         ; Print Space character to the seriel
+            jsr         putchar         ; Print Space character to the seriel
+            pula                        ; Restore A from the stack
+            ldx         #buffer         ; Load the address of the buffer into X
+            ldy         lenBuf          ; Load the length of the buffer into Y
+            jsr         Zeros           ; Fill the buffer with Zeros
+            ldy         #buffer         ; Load the address of the buffer into Y
+            jsr         PrintDecimalWord; Prin the decimal representation of the word to seriel
+            ldaa        #CR             ; Load the carriage return character into A
+            jsr         putchar         ; Print the character to seriel
+            ldaa        #LF             ; Load the line feed character into A
+            jsr         putchar         ; Print the character to seriel
+            puld                        ; Restore D from the stack
+            puly                        ; Restore Y from the stack
+            rts                         ; Return to caller
+            
+strrev
+            pshx                        ; Save X to the stack
+            pshy                        ; Save Y to the stack
+            psha                        ; Save A to the stack
+revLoop     ldaa        1,y-            ; Load Character from Y into A, decrement Y
+            beq         revDone         ; If Character is 0, exit loop
+            staa        1,x+            ; Save character in address in X, increment X
+            bra         revLoop         ; Loop back always
+revDone     pula                        ; Restore A from the stack
+            puly                        ; Restore Y from the stack
+            pulx                        ; Restore X from the stack
+            rts                         ; Return to caller
 
 ;*************************************************************************
 ; PrintBinaryWord subroutine
@@ -227,47 +289,43 @@ PrintHexWord
             pshx                        ; Save X to the stack
             pshd                        ; Save D (A:B) to the stack
             pshy                        ; Save Y to the stack
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            ldx         #5              ; Load 5 into X since we have at most 4 digits
-hPrintLoop  dex                         ; Decrement X by 1
-            beq         hPrintDone      ; If X == 0, exit Loop
-            pshx                        ; Save X to the stack
-            ldx         #16             ; Load 16 in X for division
+hPrintLoop  ldx         #16             ; Load 16 in X for division
             idiv                        ; Divide D / 16 to get Hex Digit
-            cpd         #0              ; Compare D to 0
-            beq         hPrintDone      ; If D == 0, exit loop
-            cmpb        #$0A            ; Compare A to $0A
+            cpx         #0              ; Compare X to 0
+            beq         hCheck          ; If X == 0, branch to check D is zero
+hDNotZero   cmpb        #$0A            ; Compare A to $0A
             blt         hex10           ; If B < $A, branch to hex10
             addb        #'A'            ; Add 'A' to B to get ASCII Character
             subb        #$0A            ; Subtract $A to adjust characters
-            stab        1,-y            ; Save character from B to Y
+            stab        1,+y            ; Save character from B to Y
             exg         X,D             ; Swap values in X and D
-            pulx                        ; Restore Count from stack to X
             bra         hPrintLoop      ; loop to hPrintLoop
 hex10       addb        #'0'            ; Add '0' to B to get ASCII Character
-            stab        1,-y            ; Save character from B to Y
+            stab        1,+y            ; Save character from B to Y
             exg         X,D             ; Swap values in X and D
-            pulx                        ; Restore Count from stack to X
             bra         hPrintLoop      ; Loop to hPrintLoop
-hPrintDone  ldaa        #'$'            ; Load '$' into A
-            jsr         putchar         ; Print '$' to denote Hex Number
-            exg         Y,X             ; Move Address from Y to X
+hCheck      cpd         #0              ; Compare D to 0
+            bne         hDNotZero       ; If D != 0, branch back to hDNotZero
+hPrintDone  ldaa        #'$'            ; Load '$' into 
+            staa        1,+y            ; Save '$' into buffer in Y to denote Hex
+            ldx         #buffer2        ; Load the address of buffer2 in X
+            jsr         strrev          ; Reverse string in Y in buffer in X
             jsr         WriteString     ; Jump to write string to write the number
+            ldy         lenBuf2         ; Load the length of buffer2 into Y
+            ldx         #buffer2        ; Load the address of buffer2 into X
+            jsr         Zeros           ; Fill buffer2 with zeros
             puly                        ; Restore Y from the stack
             puld                        ; Restore D (A:B) from the stack
             pulx                        ; Restore X from the stack
             rts                         ; Return to caller
             
 ;*************************************************************************
-; PrintHexWord subroutine
+; PrintDecimalWord subroutine
 ;
 ; This subroutine will print a given word of data to the serial in binary.
 ;
 ; Input:                   1 word of data in register D, Buffer Address in Y
-; Output:                  Hexadecimal representation of the data on the serial console
+; Output:                  Decimal representation of the data on the serial console
 ; Registers in use:        Y for the address of the buffer, X to count the number of bits 
 ;                          written and for division, D for the input, A for characters.
 ; Memory locations in use: Memory addresses for serial.
@@ -279,26 +337,22 @@ PrintDecimalWord
             pshx                        ; Save X to the stack
             pshd                        ; Save D (A:B) to the stack
             pshy                        ; Save Y to the stack
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            ldx         #6              ; Load 5 into X since we have at most 5 digits
-dPrintLoop  dex                         ; Decrement X by 1
-            beq         dPrintDone      ; If X == 0, exit Loop
-            pshx                        ; Save X to the stack
-            ldx         #10             ; Load 10 in X for division
-            idiv                        ; Divide D / 16 to get Hex Digit
-            cpd         #0              ; Compare D to 0
-            beq         dPrintDone      ; If D == 0, exit loop
-            addb        #'0'            ; Add '0' to B to get ASCII Character
-            stab        1,-y            ; Save character from B to Y
+dPrintLoop  ldx         #10             ; Load 10 in X for division
+            idiv                        ; Divide D / 10 to get Hex Digit
+            cpx         #0              ; Compare X to 0
+            beq         dCheck          ; If X == 0, branch to check D is zero
+dDNotZero   addb        #'0'            ; Add '0' to B to get ASCII Character
+            stab        1,+y            ; Save character from B to Y
             exg         X,D             ; Swap values in X and D
-            pulx                        ; Restore Count from stack to X
             bra         dPrintLoop      ; Loop to hPrintLoop
-dPrintDone  exg         Y,X             ; Move Address from Y to X
+dCheck      cpd         #0              ; Compare D to 0
+            bne         dDNotZero       ; If D != 0, branch back to hDNotZero
+dPrintDone  ldx         #buffer2        ; Load the address of buffer2 in X
+            jsr         strrev          ; Reverse string in Y in buffer in X
             jsr         WriteString     ; Jump to write string to write the number
+            ldy         lenBuf2         ; Load the length of buffer2 into Y
+            ldx         #buffer2        ; Load the address of buffer2 into X
+            jsr         Zeros           ; Fill buffer2 with zeros
             puly                        ; Restore Y from the stack
             puld                        ; Restore D (A:B) from the stack
             pulx                        ; Restore X from the stack
diff --git a/cmpen472hw6_McDonnell/bin/Project.abs b/cmpen472hw6_McDonnell/bin/Project.abs
index 68eb469..c48cb9d 100644
--- a/cmpen472hw6_McDonnell/bin/Project.abs
+++ b/cmpen472hw6_McDonnell/bin/Project.abs
diff --git a/cmpen472hw6_McDonnell/bin/Project.abs.s19 b/cmpen472hw6_McDonnell/bin/Project.abs.s19
index 3c4bd30..55fba26 100644
--- a/cmpen472hw6_McDonnell/bin/Project.abs.s19
+++ b/cmpen472hw6_McDonnell/bin/Project.abs.s19
@@ -1,27 +1,32 @@
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-S118300000360500000000000000000000000000000000000F6D
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-S12331E0303D343B350202020202CE000609271434CE000A18108C00002709CB306B6FB71C
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-S10D33E0726F6772616D2E0D0A0012
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diff --git a/cmpen472hw6_McDonnell/bin/main.dbg b/cmpen472hw6_McDonnell/bin/main.dbg
index eae7f5a..58fa190 100644
--- a/cmpen472hw6_McDonnell/bin/main.dbg
+++ b/cmpen472hw6_McDonnell/bin/main.dbg
@@ -77,9 +77,13 @@ Counter     dc.w        $0036           ; X register count number for time Delay
 
 LEVEL       dc.b        $0005           ; Light Level that the LED should be
 
-buffer      ds.b        $000F           ; Array of 16 bytes to read a string
-            dc.b        NULL
-lenBuf      dc.w        $000F           ; Length of str array
+buffer      ds.b        $0010           ; Array of 16 bytes to read a string
+            dc.b        NULL            ; NULL terminated
+lenBuf      dc.w        $0010           ; Length of buffer array
+
+buffer2     ds.b        $0010           ; Array of 16 bytes for reading and reversal
+            dc.b        NULL            ; NULL terminated
+lenBuf2     dc.w        $0010           ; length of buffer2
 * There is a second Data Section at the end of the file.
 *
 **************************************************************************
@@ -127,6 +131,9 @@ mainLoop
             ldaa        #LF
             jsr         putchar
             
+            ldx         #Counter
+            jsr         PrintMem
+            
             bra         mainLoop
             
             ldx         #msg            ; Load the address of msg into X
@@ -172,6 +179,61 @@ twReadLoop  jsr         getchar         ; Read Character from Serial
 
 CheckInput
             rts                         ; Return to caller
+            
+            
+PrintMem
+            pshy                        ; Save Y to the Stack
+            pshd                        ; Save D to the Stack
+            exg         x,d             ; Copy Address from X to D to print
+            ldy         #buffer         ; Load the address of buffer into Y
+            jsr         PrintHexWord    ; Print the Address in Hex
+            exg         d,x             ; Copy Address from D to X
+            ldaa        #'='            ; Load the '=' character into A
+            jsr         putchar         ; Print the character to the seriel
+            ldaa        #'>'            ; Load the  '>' character into A
+            jsr         putchar         ; Print the character to the seriel
+            ldd         x               ; Load data from address in X into D
+            ldx         #buffer         ; Load the address of the buffer into X
+            ldy         lenBuf          ; Load the length of the buffer into Y
+            jsr         Zeros           ; Fill the buffer with Zeros
+            jsr         PrintBinaryWord ; Print the binary word to the seriel
+            psha                        ; Save A to the stack
+            ldaa        #' '            ; Load Space character into A
+            jsr         putchar         ; Print Space character to the seriel
+            jsr         putchar         ; Print Space character to the seriel
+            pula                        ; Restore A from the stack
+            ldy         #buffer         ; Load the address of the buffer into Y
+            jsr         PrintHexWord    ; Prin the hex representation of the word to seriel
+            psha                        ; Save A to the stack
+            ldaa        #' '            ; Load Space character into A
+            jsr         putchar         ; Print Space character to the seriel
+            jsr         putchar         ; Print Space character to the seriel
+            pula                        ; Restore A from the stack
+            ldx         #buffer         ; Load the address of the buffer into X
+            ldy         lenBuf          ; Load the length of the buffer into Y
+            jsr         Zeros           ; Fill the buffer with Zeros
+            ldy         #buffer         ; Load the address of the buffer into Y
+            jsr         PrintDecimalWord; Prin the decimal representation of the word to seriel
+            ldaa        #CR             ; Load the carriage return character into A
+            jsr         putchar         ; Print the character to seriel
+            ldaa        #LF             ; Load the line feed character into A
+            jsr         putchar         ; Print the character to seriel
+            puld                        ; Restore D from the stack
+            puly                        ; Restore Y from the stack
+            rts                         ; Return to caller
+            
+strrev
+            pshx                        ; Save X to the stack
+            pshy                        ; Save Y to the stack
+            psha                        ; Save A to the stack
+revLoop     ldaa        1,y-            ; Load Character from Y into A, decrement Y
+            beq         revDone         ; If Character is 0, exit loop
+            staa        1,x+            ; Save character in address in X, increment X
+            bra         revLoop         ; Loop back always
+revDone     pula                        ; Restore A from the stack
+            puly                        ; Restore Y from the stack
+            pulx                        ; Restore X from the stack
+            rts                         ; Return to caller
 
 ;*************************************************************************
 ; PrintBinaryWord subroutine
@@ -227,47 +289,43 @@ PrintHexWord
             pshx                        ; Save X to the stack
             pshd                        ; Save D (A:B) to the stack
             pshy                        ; Save Y to the stack
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            ldx         #5              ; Load 5 into X since we have at most 4 digits
-hPrintLoop  dex                         ; Decrement X by 1
-            beq         hPrintDone      ; If X == 0, exit Loop
-            pshx                        ; Save X to the stack
-            ldx         #16             ; Load 16 in X for division
+hPrintLoop  ldx         #16             ; Load 16 in X for division
             idiv                        ; Divide D / 16 to get Hex Digit
-            cpd         #0              ; Compare D to 0
-            beq         hPrintDone      ; If D == 0, exit loop
-            cmpb        #$0A            ; Compare A to $0A
+            cpx         #0              ; Compare X to 0
+            beq         hCheck          ; If X == 0, branch to check D is zero
+hDNotZero   cmpb        #$0A            ; Compare A to $0A
             blt         hex10           ; If B < $A, branch to hex10
             addb        #'A'            ; Add 'A' to B to get ASCII Character
             subb        #$0A            ; Subtract $A to adjust characters
-            stab        1,-y            ; Save character from B to Y
+            stab        1,+y            ; Save character from B to Y
             exg         X,D             ; Swap values in X and D
-            pulx                        ; Restore Count from stack to X
             bra         hPrintLoop      ; loop to hPrintLoop
 hex10       addb        #'0'            ; Add '0' to B to get ASCII Character
-            stab        1,-y            ; Save character from B to Y
+            stab        1,+y            ; Save character from B to Y
             exg         X,D             ; Swap values in X and D
-            pulx                        ; Restore Count from stack to X
             bra         hPrintLoop      ; Loop to hPrintLoop
-hPrintDone  ldaa        #'$'            ; Load '$' into A
-            jsr         putchar         ; Print '$' to denote Hex Number
-            exg         Y,X             ; Move Address from Y to X
+hCheck      cpd         #0              ; Compare D to 0
+            bne         hDNotZero       ; If D != 0, branch back to hDNotZero
+hPrintDone  ldaa        #'$'            ; Load '$' into 
+            staa        1,+y            ; Save '$' into buffer in Y to denote Hex
+            ldx         #buffer2        ; Load the address of buffer2 in X
+            jsr         strrev          ; Reverse string in Y in buffer in X
             jsr         WriteString     ; Jump to write string to write the number
+            ldy         lenBuf2         ; Load the length of buffer2 into Y
+            ldx         #buffer2        ; Load the address of buffer2 into X
+            jsr         Zeros           ; Fill buffer2 with zeros
             puly                        ; Restore Y from the stack
             puld                        ; Restore D (A:B) from the stack
             pulx                        ; Restore X from the stack
             rts                         ; Return to caller
             
 ;*************************************************************************
-; PrintHexWord subroutine
+; PrintDecimalWord subroutine
 ;
 ; This subroutine will print a given word of data to the serial in binary.
 ;
 ; Input:                   1 word of data in register D, Buffer Address in Y
-; Output:                  Hexadecimal representation of the data on the serial console
+; Output:                  Decimal representation of the data on the serial console
 ; Registers in use:        Y for the address of the buffer, X to count the number of bits 
 ;                          written and for division, D for the input, A for characters.
 ; Memory locations in use: Memory addresses for serial.
@@ -279,26 +337,22 @@ PrintDecimalWord
             pshx                        ; Save X to the stack
             pshd                        ; Save D (A:B) to the stack
             pshy                        ; Save Y to the stack
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            iny                         ; Increment Y by 1
-            ldx         #6              ; Load 5 into X since we have at most 5 digits
-dPrintLoop  dex                         ; Decrement X by 1
-            beq         dPrintDone      ; If X == 0, exit Loop
-            pshx                        ; Save X to the stack
-            ldx         #10             ; Load 10 in X for division
-            idiv                        ; Divide D / 16 to get Hex Digit
-            cpd         #0              ; Compare D to 0
-            beq         dPrintDone      ; If D == 0, exit loop
-            addb        #'0'            ; Add '0' to B to get ASCII Character
-            stab        1,-y            ; Save character from B to Y
+dPrintLoop  ldx         #10             ; Load 10 in X for division
+            idiv                        ; Divide D / 10 to get Hex Digit
+            cpx         #0              ; Compare X to 0
+            beq         dCheck          ; If X == 0, branch to check D is zero
+dDNotZero   addb        #'0'            ; Add '0' to B to get ASCII Character
+            stab        1,+y            ; Save character from B to Y
             exg         X,D             ; Swap values in X and D
-            pulx                        ; Restore Count from stack to X
             bra         dPrintLoop      ; Loop to hPrintLoop
-dPrintDone  exg         Y,X             ; Move Address from Y to X
+dCheck      cpd         #0              ; Compare D to 0
+            bne         dDNotZero       ; If D != 0, branch back to hDNotZero
+dPrintDone  ldx         #buffer2        ; Load the address of buffer2 in X
+            jsr         strrev          ; Reverse string in Y in buffer in X
             jsr         WriteString     ; Jump to write string to write the number
+            ldy         lenBuf2         ; Load the length of buffer2 into Y
+            ldx         #buffer2        ; Load the address of buffer2 into X
+            jsr         Zeros           ; Fill buffer2 with zeros
             puly                        ; Restore Y from the stack
             puld                        ; Restore D (A:B) from the stack
             pulx                        ; Restore X from the stack
diff --git a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell.mcp b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell.mcp
index b0cc7cb..4bff8b3 100644
--- a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell.mcp
+++ b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell.mcp
diff --git a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.o b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.o
index 68eb469..c48cb9d 100644
--- a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.o
+++ b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.o
diff --git a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.sx b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.sx
index d5adbf0..25b5dc8 100644
--- a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.sx
+++ b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/ObjectCode/main.asm.sx
@@ -1,27 +1,32 @@
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diff --git a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/TargetDataWindows.tdt b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/TargetDataWindows.tdt
index 686cab1..df5641b 100644
--- a/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/TargetDataWindows.tdt
+++ b/cmpen472hw6_McDonnell/cmpen472hw6_McDonnell_Data/Standard/TargetDataWindows.tdt