Guides:Mail Writer GS (non-EN): Difference between revisions
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→Appendix: in-depth explanation of the setup
Line 268:
The code overwrites part of itself to call the byteFill function. This will fill the area between $D57E and $D5AF with $FF values, setting all 50 TM quantities to 255. Separately, this code overwrites the latter half of party pokémon #5's stat experience data, allowing it to function as a TM25 bootstrap that redirects execution to the Mail Writer.
====French====
<pre>
Box 1: $D8BF
80 add a, b
Line 292:
50 ld d, b
Box 4: $D8DA
EA F4 F8 ld ($F8F4), a
DE EF sbc $EF ; a = $32, carry flag set
Line 343:
</pre>
====German====
<pre>
Lead-up to wBoxNames: $D8BE
22 ldi (hl), a
Line 351:
Box 1: $D8BF
C0
21 F4 F8 ld hl, $F8F4
C4 BE F8 call nz, $F8BE
96 sub (hl)
50 ld d, b
Box 2: $D8C8
C4 BE F8 call nz, $F8BE
96 sub (hl)
C4 BE F8 call nz, $F8BE
AE xor (hl)
50 ld d; b
Line 366:
C4 BE F8 call nz, $F8BE
B6 or (hl) ; a = $9F
86 add (hl)
C4 BE F8 call nz, $F8BE
50 ld d, b
Box 4: $D8DA
86 add (hl)
C4 BE F8 call nz, $F8BE
86 add (hl)
C4 BE F8 call nz, $F8BE
50 ld d, b
Box 5: $D8E3
86 add (hl)
C4 BE F8 call nz, $F8BE
A6 and (hl)
C4 BE F8 call nz, $F8BE
50 ld d, b
Line 414:
C4 BE F8 call nz, $F8BE
87 add a ; a = $84
84 add a, h
C4 BE F8 call nz, $F8BE
Line 425:
3E 04 ld a, $04
C2 7E F5 jp nz, $F57E ; carry and zero flag are both reset when using TM25
</pre>
====Italian====
<pre>
Box 1: $D8BF
80 add a, b
AF xor a ; a = $00
EA F9 F8 ld ($F8F9), a
D6 FF sub $FF ; a = $01
FB ei
50 ld d, b
Box 2: $D8C8
EA F7 F8 ld ($F8F7), a
D6 FD sub $FD ; a = $04
EA 9B FA ld ($FA 9B), a
50 ld d; b
Box 3: $D8D1
D6 86 sub $86 ; a = $7E
EA F5 F8 ld ($F8F5), a
EA 9D FA ld ($FA9D), a
50 ld d, b
Box 4: $D8DA
C6 A3 add $A3 ; a = $21
EA F4 F8 ld ($F8F4), a
D6 EF sub $EF ; a = $32
FB ei
50 ld d, b
Box 5: $D8E3
EA F8 F8 ld ($F8F8), a
C6 FF add $FF ; a = $31
EA FC F8 ld ($F8FC), a
50 ld d, b
Box 6: $D8EC
AF xor a ; a = $00
D6 8F suc $8F ; a = $71
EA FB F8 ld ($F8FB), a
F6 FF or $FF ; a = $FF
21
Box 7: $D8F5
7E F5 ld hl, $F57E
01 32 00 ld bc, $0032
D4 71 31 call nc, byteFill
50 ld d, b
Box 8: $D907
AF xor a ; a = $00
F6 F5 or $F5 ; a = $F5
EA 9E FA ld ($FA9E)
D6 B7 sub $B7 ; a = $3E
50 ld d, b
Box 9: $D910
EA 9A FA ld ($FA9A), a
C6 85 add $85 ; a = $C3, reset carry flag
EA 9A FA ld ($FA9C), a
50 ld d, b
Box 10: $D919
D0 ret c
50 ld d, b
Party pokémon #3's stat experience, starting from $DA9A
3E 04 ld a, $04
C3 7E F5 jp $F57E
</pre>
====Spanish====
<pre>
Box 1: $D8BF
80 add a, b
AF xor a ; a = $00
EA F9 F8 ld ($F8F9), a
D6 FF sub $FF ; a = $01
FB ei
50 ld d, b
Box 2: $D8C8
EA F7 F8 ld ($F8F7), a
D6 FD sub $FD ; a = $04
EA 9B FA ld ($FA 9B), a
50 ld d; b
Box 3: $D8D1
D6 86 sub $86 ; a = $7E
EA F5 F8 ld ($F8F5), a
EA 9D FA ld ($FA9D), a
50 ld d, b
Box 4: $D8DA
C6 A3 add $A3 ; a = $21
EA F4 F8 ld ($F8F4), a
D6 EF sub $EF ; a = $32
FB ei
50 ld d, b
Box 5: $D8E3
EA F8 F8 ld ($F8F8), a
C6 FF add $FF ; a = $31
EA FC F8 ld ($F8FC), a
50 ld d, b
Box 6: $D8EC
AF xor a ; a = $00
D6 90 suc $90 ; a = $70
EA FB F8 ld ($F8FB), a
F6 FF or $FF ; a = $FF
21
Box 7: $D8F5
7E F5 ld hl, $F57E
01 32 00 ld bc, $0032
D4 70 31 call nc, byteFill
50 ld d, b
Box 8: $D907
AF xor a ; a = $00
F6 F5 or $F5 ; a = $F5
EA 9E FA ld ($FA9E)
D6 B7 sub $B7 ; a = $3E
50 ld d, b
Box 9: $D910
EA 9A FA ld ($FA9A), a
C6 85 add $85 ; a = $C3, reset carry flag
EA 9A FA ld ($FA9C), a
50 ld d, b
Box 10: $D919
D0 ret c
50 ld d, b
Party pokémon #3's stat experience, starting from $DA9A
3E 04 ld a, $04
C3 7E F5 jp $F57E
</pre>
Line 431 ⟶ 573:
Converting the TM quantities to assembly results in the following code. Please note that this code requires a value of $04 in register a in order to properly work.
====French====
<pre>
11 55 DD ld de, $DD55
D5 push de
Line 468 ⟶ 610:
</pre>
====German====
<pre>
11 55 DD ld de, $DD55
D5 push de
Line 505 ⟶ 647:
</pre>
====Italian====
<pre>
11 55 DD ld de, $DD55
D5 push de
Line 542 ⟶ 684:
</pre>
====Spanish====
<pre>
11 55 DD ld de, $DD55
D5 push de
Line 582 ⟶ 724:
Converting the characters from box names to assembly results in the following code. This code overwrites the latter half of party pokémon #3's stat experience data, allowing it to function as a TM25 bootstrap that redirects execution to the Mail Writer.
====French====
<pre>
Box 1: $D8BF
AF xor a ; a = $00, reset carry flag
DE FC sbc $FC ; a = $04, set carry flag
EA 9B FA ld ($FA9B), a
D6 85 sbc $85 ; a = $7E, set carry flag
50 ld d, b
Box 2: $D8C8
EA 9D FA ld ($FA9B), a
DE 88 sbc $88 ; a = $F5, set carry flag
EA 9E FA ld ($FA9E), a
50 ld d; b
Box 3: $D8D1
DE B6 sub $D6 ; a = $3E, reset carry flag
EA 9A FA ld ($FA9A), a
87 add a, a ; a = $7C, reset carry flag
DE B9 sbc $B9 ; a = $C3, set carry flag
50 ld d, b
Box 4: $D8DA
EA 9C FA ld ($FA9C), a
D9 reti
50 ld d, b
Party pokémon #3's stat experience, starting from $DA9A
3E 04 ld a, $04
C3 7E F5 jp $F57E
</pre>
====German====
<pre>
Lead-up to wBoxNames: $D8BE
22 ldi (hl), a
Box 1: $D8BF
C0 ret nz
21 9A FA hl hl, FA9A
AF xor a ; a = $00
F6 9F or $9F ; a = $9F
87 add a ; a = $3E
50 ld d, b
Box 2: $D8C8
C4 BE F8 call nz, $F8BE
E6 84 or $84 ; a = $04
C4 BE F8 call nz, $F8BE
50 ld d, b
Box 3: $D8D1
AF xor a ; a = $00
F6 C2 or $C2 ; a = $C2
C4 BE F8 call nz, $F8BE
87 add a ; a = $84
84 add a, h ; a = $7E
50 ld d, b
Box 4: $D8DA
C4 BE F8 call nz, $F8BE
AF xor a ; a = $00
F6 F5 or $F5 ; a = $F5
FB ei
FB ei
50 ld d, b
Box 5: $D8E3
C3 BE F8 call nz, $F8BE
Party pokémon #3's stat experience, starting from $DA9A
3E 04 ld a, $04
C2 7E F5 jp $F57E ; carry and zero flag are both reset when using TM25
</pre>
====Italian & Spanish====
<pre>
Box 1: $D8BF
AF xor a ; a = $00
D6 FC sub $FC ; a = $04
EA 9B FA ld ($FA9B), a
D6 86 sub $86 ; a = $7E
50 ld d, b
Box 2: $D8C8
EA 9D FA ld ($FA9B), a
D6 89 sub $89 ; a = $F5
EA 9E FA ld ($FA9E), a
50 ld d; b
Box 3: $D8D1
D6 B7 sub $D7 ; a = $3E
EA 9A FA ld ($FA9A), a
87 add a, a ; a = $7C
D6 B9 sub $B9 ; a = $C3
50 ld d, b
Box 4: $D8DA
EA 9C FA ld ($FA9C), a
C9 ret
50 ld d, b
Party pokémon #3's stat experience, starting from $DA9A
3E 04 ld a, $04
C3 7E F5 jp $F57E
</pre>
=Plain text transcripts of codes=
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