Arcana - Fastrom ROM Hack herunterladen

0.6 to 1.0 changes [torha]
- Minor speed up when creating dungeon tiles
- Upgrade to v0.6
Short explain:
839d59 lda $7f0000,x [7f0040]
839d5d pha
839d5e sep #$30             
839d60 plx                   
839d61 lda $83b251,x [83b350]
839d65 xba                   
839d66 plx                   
839d67 lda $83b251,x [83b251]
839d6b xba                   
839d6c rep #$30
Notice how it uses the stack (pha, plx, plx). A small gain by avoiding the r/w to ram.
[19d5d] A8 EB AA...
  tay			; two 8-bit tile data
  xba
  tax
  sep #$30
  lda $83b251,x		; tile1
  xba
  tyx			; tile2
  lda $83b251,x
  rep #$30
Which fits perfectly.


1.0 to 1.1b changes [Sarah Shinespark]
Removes a useless ADC in $9008 (an event handler) and uses the 3 bytes to add an ORA.
Changes any banks using this method to fastrom banks.
Also, manually changed a lot of JSLs to use fastrom.

Before:
$80/9013 85 10       STA $10    [$00:1E10]
$80/9015 BD 57 0C    LDA $0C57,x[$80:0CD7]
*$80/9018 85 12       STA $12    [$00:1E12]
$80/901A 8A          TXA                  
$80/901B 0A          ASL A                
$80/901C 0A          ASL A                
$80/901D 0A          ASL A                
$80/901E 69 0F 0D    ADC #$0D0F           
$80/9021 85 14       STA $14    [$00:1E14]
$80/9023 A9 00 00    LDA #$0000           
*$80/9026 69 00 00    ADC #$0000           
$80/9029 85 16       STA $16    [$00:1E16]
$80/902B A7 10       LDA [$10]  [$17:91F1]


After:
$80/9013 85 10       STA $10    [$00:1E08]
$80/9015 BD 57 0C    LDA $0C57,x[$80:0C99]
*$80/9018 09 80 80    ORA #$8080           
$80/901B 85 12       STA $12    [$00:1E0A]
$80/901D 8A          TXA                  
$80/901E 0A          ASL A                
$80/901F 0A          ASL A                
$80/9020 0A          ASL A                
$80/9021 69 0F 0D    ADC #$0D0F           
$80/9024 85 14       STA $14    [$00:1E0C]
$80/9026 A9 00 00    LDA #$0000           
$80/9029 85 16       STA $16    [$00:1E0E]
$80/902B A7 10       LDA [$10]  [$55:5555]