Error: symbol not defined (ASM68K)

[mkg]

i'm having Symbol not defined problem
the code i taken from: bigevilcorporation.co.uk/2012/02/28/sega-megadrive-1-getting-started/ (the tabs were added by me)

ASM CODE

; ******************************************************************
; Sega Megadrive ROM header
; ******************************************************************
dc.l   0x00FFE000      ; Initial stack pointer value
dc.l   EntryPoint      ; Start of program
dc.l   Exception       ; Bus error
dc.l   Exception       ; Address error
dc.l   Exception       ; Illegal instruction
dc.l   Exception       ; Division by zero
dc.l   Exception       ; CHK exception
dc.l   Exception       ; TRAPV exception
dc.l   Exception       ; Privilege violation
dc.l   Exception       ; TRACE exception
dc.l   Exception       ; Line-A emulator
dc.l   Exception       ; Line-F emulator
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Spurious exception
dc.l   Exception       ; IRQ level 1
dc.l   Exception       ; IRQ level 2
dc.l   Exception       ; IRQ level 3
dc.l   HBlankInterrupt ; IRQ level 4 (horizontal retrace interrupt)
dc.l   Exception       ; IRQ level 5
dc.l   VBlankInterrupt ; IRQ level 6 (vertical retrace interrupt)
dc.l   Exception       ; IRQ level 7
dc.l   Exception       ; TRAP #00 exception
dc.l   Exception       ; TRAP #01 exception
dc.l   Exception       ; TRAP #02 exception
dc.l   Exception       ; TRAP #03 exception
dc.l   Exception       ; TRAP #04 exception
dc.l   Exception       ; TRAP #05 exception
dc.l   Exception       ; TRAP #06 exception
dc.l   Exception       ; TRAP #07 exception
dc.l   Exception       ; TRAP #08 exception
dc.l   Exception       ; TRAP #09 exception
dc.l   Exception       ; TRAP #10 exception
dc.l   Exception       ; TRAP #11 exception
dc.l   Exception       ; TRAP #12 exception
dc.l   Exception       ; TRAP #13 exception
dc.l   Exception       ; TRAP #14 exception
dc.l   Exception       ; TRAP #15 exception
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)
dc.l   Exception       ; Unused (reserved)

dc.b "SEGA GENESIS    "                                 ; Console name
dc.b "(C)SEGA 1992.SEP"                                 ; Copyrght holder and release date
dc.b "YOUR GAME HERE                                  " ; Domestic name
dc.b "YOUR GAME HERE                                  " ; International name
dc.b "GM XXXXXXXX-XX"                                   ; Version number
dc.w 0x0000                                             ; Checksum
dc.b "J               "                                 ; I/O support
dc.l 0x00000000                                         ; Start address of ROM
dc.l __end                                              ; End address of ROM
dc.l 0x00FF0000                                         ; Start address of RAM
dc.l 0x00FFFFFF                                         ; End address of RAM
dc.l 0x00000000                                         ; SRAM enabled
dc.l 0x00000000                                         ; Unused
dc.l 0x00000000                                         ; Start address of SRAM
dc.l 0x00000000                                         ; End address of SRAM
dc.l 0x00000000                                         ; Unused
dc.l 0x00000000                                         ; Unused
dc.b "                                        "         ; Notes (unused)
dc.b "JUE             "                                 ; Country codes

CONSOLE OUTPUT

SN 68k version 2.53

C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(5) : Error : Symbol 'entrypoint' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(6) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(7) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(8) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(9) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(10) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(11) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(12) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(13) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(14) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(15) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(16) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(17) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(18) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(19) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(20) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(21) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(22) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(23) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(24) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(25) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(26) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(27) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(28) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(29) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(30) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(31) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(32) : Error : Symbol 'hblankinterrupt' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(33) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(34) : Error : Symbol 'vblankinterrupt' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(35) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(36) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(37) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(38) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(39) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(40) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(41) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(42) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(43) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(44) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(45) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(46) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(47) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(48) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(49) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(50) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(51) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(52) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(53) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(54) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(55) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(56) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(57) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(58) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(59) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(60) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(61) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(62) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(63) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(64) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(65) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(66) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(67) : Error : Symbol 'exception' not defined
C:\USERS\FRAN VALEN TOMY\DOCUMENTS\MEGADRIVE\DEV\TEST.ASM(77) : Error : Symbol '__end' not defined

Assembly completed.
64 error(s) from 125 lines in 0.1 seconds

Used notepad++

[Deleted]

Dude, are you serious? BEX automatically adds a header to your ROM already, so you don't have to & can't use this code.

Aside from that you haven't defined EntryPoint, Exception, HBlankInterrupt and VBlankInterrupt .. which causes the errors.

[mkg]

Jan 27, 2015 8:17:27 GMT -5 @moon said:

Dude, are you serious? BEX automatically adds a header to your ROM already, so you don't have to & can't use this code.

Aside from that you haven't defined EntryPoint, Exception, HBlankInterrupt and VBlankInterrupt .. which causes the errors.

No, this is not bex, is pure assemby -_-

I'm learning 68k assembly from bigevilcorp's tutorial

[mkg]

Also i tested this example: www.mediafire.com/download/h4qmqf65eoki7yb/MD_PongTest.zip but it gives me a corrupted ROM (the copyright is in the title with a lot of unuseful numbers )

EDIT: fixed, i had to use /p, but the rom header problem still persists

[mkg]

The guy at BigEvilCorp helped me , now is fixed (1: i forgot to put the labels at the end 2: i forgot to delete the labels that myself put at the start xD)