prgmTrouble's Asm Questions
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I adapted what I could, but I am still not quite understanding how this hook works. The customCharacter still seems to have no affect on anything. Is there anything I'm forgetting?

Code:
.nolist
#include "ti84pcse.inc"
#define PutMapFlags $4a
#define PutMapUseColor 4
.list
.db tExtTok,tAsm84CCmp
hookBackup              equ     appBackUpScreen
.org userMem
      bcall(_NewLine)
      ld hl,FontHook
      ;in a,(6)
      bcall(_SetFontHook)
      ld hl,eq3
      bcall(_VPutS)
      bcall(_GetKey)
      ret
FontHook:
  .db 83h             ; Required for all hooks
  or a
  jr z,+_
  cp a
  ret
_:
  ld a,h
  or a,l
  rrca
  rrca
  rrca
  cp $80
  ret nz
  ;ld hl,customCharacter
  ;ld de,lFont_record
  ;ld bc,7
  ;ldir
  ld hl,customCharacter
  cp a
  ret
customCharacter:
       .db %00000000
       .db %00001100
       .db %00010110
       .db %00011110
       .db %00010110
       .db %00010110
       .db %00000000
eq3:   
      .db "V",$12,"=V",$80,$12,"+2a",$BE,"X ";$80 displays the original $80
Move your hook somewhere safe. You set the hook to its copy when your program was moved to usermem; which is removed when your program finishes.

Also; please for the love of everything don't use hooks to do this. I can't believe no one (besides Tari) has said this. You will just confuse yourself and it is a lot of needless work. Just use a custom character printing routine.
prgmTrouble wrote:
I adapted what I could, but I am still not quite understanding how this hook works. The customCharacter still seems to have no affect on anything. Is there anything I'm forgetting?

You deleted the byte I said needed to be present rather than uncommenting it.
Tari wrote:
Fine, but the initial width byte should be present otherwise this data is telling it that the width of the character is zero.
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prgmTrouble's Asm Questions
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