RESOLVED: Jump table not working PASM

Wurlitzer

As usual I work on a problem for an hour, post then find it. The jmp #tmp1 needs to be jmp tmp1

I have used the following format for jump tables before without issue but I must be missing the forest for the trees on this one.

If in my MainLoop I do a JMP #x1 everything down stream in this cog works fine and the cogs depending on this cog also work fine.

If, however I do a JMP #NoteCommandMsg it appears that no data gets sent to the hub for subsequent processing.

Setting ChannelNum to 1 would seem to point me to "x1" in the jump table yet something is not working.

NoteCommandMsg 

                         mov ChannelNum, #1
                         mov  tmp1, ChannelNum
                         cmp  ChannelNum, #13 wc, wz, nr
                    if_a jmp  #MainLoop
                         add  tmp1, #ManualNumTbl
                         nop
                         jmp  #tmp1                                                  

ManualNumTbl             jmp  #MainLoop       '0
x1                       jmp  #Pedal_1_Update  '1
                         jmp  #Acc_1_Update    '2
                         jmp  #Solo_1_Update   '3
                         jmp  #MainLoop      '4
                         jmp  #MainLoop      '5
                         jmp  #MainLoop      '6
                         jmp  #MainLoop      '7
                         jmp  #MainLoop      '8
                         jmp  #MainLoop      '9
                         jmp  #MainLoop      '10                         
                         jmp  #Pedal_2_Update '11
                         jmp  #Acc_2_Update   '12
                         jmp  #Solo_2_Update  '13 

Post Edited (Wurlitzer) : 8/31/2009 4:17:30 PM GMT

JonnyMac

I use min and max to "fix" the index for a jump table.

setled                  mov     tmp1, color                     ' get color
                        min     tmp1, #0                        ' force color to legal range
                        max     tmp1, #4                        '   (0 or 4 = off)
                        add     tmp1, #jmpcolor                 ' add to jump table
                        nop
                        jmp     tmp1                            ' jump to color mode

jmpcolor                jmp     #ledoff
                        jmp     #ledred
                        jmp     #ledgreen
                        jmp     #ledyellow
                        jmp     #ledoff

Wurlitzer

Thanks Jonny, good tip. I'll incorporate that into my jump table routines as a standard.