From b986033a11f423a0b0b7696fc3f25c2a996b78aa Mon Sep 17 00:00:00 2001
From: Rangi <remy.oukaour+rangi42@gmail.com>
Date: Mon, 14 Sep 2020 13:10:31 -0400
Subject: =?UTF-8?q?Extract=20=E3=81=82=E3=81=9D=E3=81=B3=E3=81=8B=E3=81=9F?=
 =?UTF-8?q?=20"How=20to=20Play"=20graphics?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 gfx/how_to_play/how_to_play.png        | Bin 0 -> 1425 bytes
 gfx/how_to_play/how_to_play_safari.png | Bin 0 -> 1551 bytes
 gfx/how_to_play/how_to_play_sgb.png    | Bin 0 -> 375 bytes
 gfx/how_to_play/oak_mouth_sgb.png      | Bin 0 -> 91 bytes
 source/bank_00.asm                     |  84 ++++++++++++++++++++++++++++++---
 source/bank_05.asm                     |   2 +-
 source/bank_56.asm                     |  10 ++++
 source/bank_78.asm                     |   7 ++-
 8 files changed, 95 insertions(+), 8 deletions(-)
 create mode 100644 gfx/how_to_play/how_to_play.png
 create mode 100644 gfx/how_to_play/how_to_play_safari.png
 create mode 100644 gfx/how_to_play/how_to_play_sgb.png
 create mode 100644 gfx/how_to_play/oak_mouth_sgb.png
 create mode 100644 source/bank_56.asm

diff --git a/gfx/how_to_play/how_to_play.png b/gfx/how_to_play/how_to_play.png
new file mode 100644
index 0000000..9b39ce1
Binary files /dev/null and b/gfx/how_to_play/how_to_play.png differ
diff --git a/gfx/how_to_play/how_to_play_safari.png b/gfx/how_to_play/how_to_play_safari.png
new file mode 100644
index 0000000..4c0664a
Binary files /dev/null and b/gfx/how_to_play/how_to_play_safari.png differ
diff --git a/gfx/how_to_play/how_to_play_sgb.png b/gfx/how_to_play/how_to_play_sgb.png
new file mode 100644
index 0000000..e3b34a6
Binary files /dev/null and b/gfx/how_to_play/how_to_play_sgb.png differ
diff --git a/gfx/how_to_play/oak_mouth_sgb.png b/gfx/how_to_play/oak_mouth_sgb.png
new file mode 100644
index 0000000..a0d5851
Binary files /dev/null and b/gfx/how_to_play/oak_mouth_sgb.png differ
diff --git a/source/bank_00.asm b/source/bank_00.asm
index 1e7cc35..961107b 100644
--- a/source/bank_00.asm
+++ b/source/bank_00.asm
@@ -146,7 +146,7 @@ _start::
     push af
     ld hl, _RAM
     ld bc, $2000 - 1
-    call clear_mem
+    call mem_clear
     pop af
     ld [w_c358], a
     pop af
@@ -276,7 +276,7 @@ function_00_0295::
     push af
     ld hl, _RAM
     ld bc, $2000
-    call clear_mem
+    call mem_clear
     pop af
     ld [w_c344], a
     pop af
@@ -1174,21 +1174,93 @@ function_00_0d91::
     pop af
     ret
 
-SECTION "clear_mem", ROM0[$0f38]
+SECTION "mem_clear", ROM0[$0f38]
 ; Zeroes out RAM
 ; Parameters:
 ; hl - dest
 ; bc - length
-clear_mem::
+mem_clear::
     xor a
     ld [hl+], a
     dec bc
     ld a, c
     or b
-    jr nz, clear_mem
+    jr nz, mem_clear
+    ret
+
+SECTION "copy functions", ROM0[$0f69]
+
+; Parameters:
+; a - bank
+; hl - source
+; de - dest
+; bc - length
+mem_copy::
+    ld [w_bank_temp], a
+    ld a, [w_bank_rom]
+    push af
+    ld a, [w_bank_temp]
+    ld [w_bank_rom], a
+    ld [rROMB0], a
+
+.loop
+    ld a, [hl+]
+    ld [de], a
+    inc de
+    dec bc
+    ld a, c
+    or b
+    jr nz, .loop
+
+    pop af
+    ld [w_bank_rom], a
+    ld [rROMB0], a
+    ret
+
+; Parameters:
+; a - bank
+; hl - source
+; de - dest
+; bc - length
+mem_mask::
+    ld [w_bank_temp], a
+    ld a, [w_bank_rom]
+    push af
+    ld a, [w_bank_temp]
+    ld [w_bank_rom], a
+    ld [rROMB0], a
+
+    srl b
+    rr c
+.loop
+    push bc
+    ld a, [hl+]
+    ld b, a
+    or [hl]
+    xor $ff
+    ld c, a
+    ld a, [de]
+    and c
+    or b
+    ld [de], a
+    inc de
+    ld a, [de]
+    and c
+    or [hl]
+    ld [de], a
+    inc de
+    inc hl
+    pop bc
+    dec bc
+    ld a, c
+    or b
+    jr nz, .loop
+
+    pop af
+    ld [w_bank_rom], a
+    ld [rROMB0], a
     ret
 
-SECTION "vram_copy", ROM0[$0fbd]
 ; Parameters:
 ; a - bank
 ; hl - source
diff --git a/source/bank_05.asm b/source/bank_05.asm
index ed838ba..1496d3b 100644
--- a/source/bank_05.asm
+++ b/source/bank_05.asm
@@ -38,7 +38,7 @@ function_05_4028:
     call function_00_1bd5
     ld hl, _VRAM
     ld bc, $1000
-    call clear_mem
+    call mem_clear
     ld a, $00
     call function_00_1bd5
 .jr_005_4048
diff --git a/source/bank_56.asm b/source/bank_56.asm
new file mode 100644
index 0000000..956e705
--- /dev/null
+++ b/source/bank_56.asm
@@ -0,0 +1,10 @@
+SECTION "gfx_how_to_play", ROMX[$4000], BANK[$56]
+gfx_how_to_play::
+INCBIN "gfx/how_to_play/how_to_play.bin"
+.end::
+
+SECTION "gfx_how_to_play_sgb", ROMX[$7800], BANK[$56]
+gfx_how_to_play_sgb::
+INCBIN "gfx/how_to_play/oak_mouth_sgb.bin"
+INCBIN "gfx/how_to_play/how_to_play_sgb.bin"
+.end::
diff --git a/source/bank_78.asm b/source/bank_78.asm
index bb0b341..079ea83 100644
--- a/source/bank_78.asm
+++ b/source/bank_78.asm
@@ -1,4 +1,5 @@
-SECTION "gfx_lv_10_hanada_cave", ROMX[$4000], BANK[$78]
+SECTION "bank78", ROMX[$4000], BANK[$78]
+
 gfx_lv_10_hanada_cave::
 INCBIN "gfx/town_map/lv_10_hanada_cave.bin"
 .end::
@@ -10,3 +11,7 @@ INCBIN "gfx/town_map/lv_10_hanada_cave_sgb.bin"
 gfx_lv_10_hanada_cave_duplicate::
 INCBIN "gfx/town_map/lv_10_hanada_cave_unused.bin"
 .end::
+
+gfx_how_to_play_safari::
+INCBIN "gfx/how_to_play/how_to_play_safari.bin"
+.end::
-- 
cgit v1.2.3