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-rwxr-xr-xengine/printer/printer.asm918
1 files changed, 918 insertions, 0 deletions
diff --git a/engine/printer/printer.asm b/engine/printer/printer.asm
new file mode 100755
index 00000000..df8ca355
--- /dev/null
+++ b/engine/printer/printer.asm
@@ -0,0 +1,918 @@
+SendScreenToPrinter:
+.loop
+ call JoyTextDelay
+ call CheckCancelPrint
+ jr c, .cancel
+ ld a, [wJumptableIndex]
+ bit 7, a
+ jr nz, .finished
+ call PrinterJumptableIteration
+ call CheckPrinterStatus
+ call PlacePrinterStatusString
+ call DelayFrame
+ jr .loop
+
+.finished
+ and a
+ ret
+
+.cancel
+ scf
+ ret
+
+Printer_CleanUpAfterSend:
+ xor a
+ ld [wPrinterConnectionOpen], a
+ ld [wPrinterOpcode], a
+ ret
+
+Printer_PrepareTilemapForPrint:
+ push af
+ call Printer_StartTransmission
+ pop af
+ ld [wPrinterMargins], a
+ call Printer_CopyTilemapToBuffer
+ ret
+
+Printer_ExitPrinter:
+ call ReturnToMapFromSubmenu
+ call Printer_RestartMapMusic
+ ret
+
+PrintDexEntry:
+ ld a, [wPrinterQueueLength]
+ push af
+
+ ld hl, vTiles1
+ ld de, FontInversed
+ lb bc, BANK(FontInversed), $80
+ call Request1bpp
+
+ xor a
+ ldh [hPrinter], a
+ call Printer_PlayMusic
+
+ ldh a, [rIE]
+ push af
+ xor a
+ ldh [rIF], a
+ ld a, (1 << SERIAL) | (1 << VBLANK)
+ ldh [rIE], a
+
+ call Printer_StartTransmission
+ ln a, 1, 0
+ ld [wPrinterMargins], a
+ farcall PrintPage1
+ call ClearTilemap
+ ld a, %11100100
+ call DmgToCgbBGPals
+ call DelayFrame
+
+ ld hl, hVBlank
+ ld a, [hl]
+ push af
+ ld [hl], $4
+
+ ld a, 8 ; 16 rows
+ ld [wPrinterQueueLength], a
+ call Printer_ResetJoypadRegisters
+ call SendScreenToPrinter
+ jr c, .skip_second_page ; canceled or got an error
+
+ call Printer_CleanUpAfterSend
+ ld c, 12
+ call DelayFrames
+ xor a
+ ldh [hBGMapMode], a
+
+ call Printer_StartTransmission
+ ln a, 0, 3
+ ld [wPrinterMargins], a
+ farcall PrintPage2
+ call Printer_ResetJoypadRegisters
+ ld a, 4
+ ld [wPrinterQueueLength], a
+ call SendScreenToPrinter
+
+.skip_second_page
+ pop af
+ ldh [hVBlank], a
+ call Printer_CleanUpAfterSend
+
+ xor a
+ ldh [rIF], a
+ pop af
+ ldh [rIE], a
+
+ call Printer_ExitPrinter
+ ld c, 8
+.low_volume_delay_frames
+ call LowVolume
+ call DelayFrame
+ dec c
+ jr nz, .low_volume_delay_frames
+
+ pop af
+ ld [wPrinterQueueLength], a
+ ret
+
+PrintPCBox:
+ ld a, [wPrinterQueueLength]
+ push af
+ ld a, 18 / 2
+ ld [wPrinterQueueLength], a
+
+ ld a, e
+ ld [wAddrOfBoxToPrint], a
+ ld a, d
+ ld [wAddrOfBoxToPrint + 1], a
+ ld a, b
+ ld [wBankOfBoxToPrint], a
+ ld a, c
+ ld [wWhichBoxToPrint], a
+
+ xor a
+ ldh [hPrinter], a
+ ld [wFinishedPrintingBox], a
+ call Printer_PlayMusic
+
+ ldh a, [rIE]
+ push af
+ xor a
+ ldh [rIF], a
+ ld a, (1 << SERIAL) | (1 << VBLANK)
+ ldh [rIE], a
+
+ ld hl, hVBlank
+ ld a, [hl]
+ push af
+ ld [hl], $4
+
+ xor a
+ ldh [hBGMapMode], a
+ call PrintPCBox_Page1
+ ln a, 1, 0 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call Printer_ResetRegistersAndStartDataSend
+ jr c, .cancel
+
+ call Printer_CleanUpAfterSend
+ ld c, 12
+ call DelayFrames
+ xor a
+ ldh [hBGMapMode], a
+ call PrintPCBox_Page2
+ ln a, 0, 0 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call Printer_ResetRegistersAndStartDataSend
+ jr c, .cancel
+
+ call Printer_CleanUpAfterSend
+ ld c, 12
+ call DelayFrames
+
+ xor a
+ ldh [hBGMapMode], a
+ call PrintPCBox_Page3
+ ln a, 0, 0 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call Printer_ResetRegistersAndStartDataSend
+ jr c, .cancel
+
+ call Printer_CleanUpAfterSend
+ ld c, 12
+ call DelayFrames
+
+ xor a
+ ldh [hBGMapMode], a
+ call PrintPCBox_Page4
+ ln a, 0, 3 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call Printer_ResetRegistersAndStartDataSend
+.cancel
+ pop af
+ ldh [hVBlank], a
+ call Printer_CleanUpAfterSend
+
+ xor a
+ ldh [rIF], a
+ pop af
+ ldh [rIE], a
+ call Printer_ExitPrinter
+
+ pop af
+ ld [wPrinterQueueLength], a
+ ret
+
+Printer_ResetRegistersAndStartDataSend:
+ call Printer_ResetJoypadRegisters
+ call SendScreenToPrinter
+ ret
+
+PrintUnownStamp:
+ ld a, [wPrinterQueueLength]
+ push af
+ xor a
+ ldh [hPrinter], a
+ call Printer_PlayMusic
+ ldh a, [rIE]
+ push af
+ xor a
+ ldh [rIF], a
+ ld a, (1 << SERIAL) | (1 << VBLANK)
+ ldh [rIE], a
+ ld hl, hVBlank
+ ld a, [hl]
+ push af
+ ld [hl], $4
+ xor a
+ ldh [hBGMapMode], a
+ call LoadTilemapToTempTilemap
+ farcall PlaceUnownPrinterFrontpic
+ ln a, 0, 0 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call SafeLoadTempTilemapToTilemap
+ call Printer_ResetJoypadRegisters
+ ld a, 18 / 2
+ ld [wPrinterQueueLength], a
+.loop
+ call JoyTextDelay
+ call CheckCancelPrint
+ jr c, .done
+ ld a, [wJumptableIndex]
+ bit 7, a
+ jr nz, .done
+ call PrinterJumptableIteration
+ ld a, [wJumptableIndex]
+ cp $2
+ jr nc, .check_status
+ ld a, 6 / 2
+ ld [wPrinterRowIndex], a
+
+.check_status
+ call CheckPrinterStatus
+ call PlacePrinterStatusString
+ call DelayFrame
+ jr .loop
+
+.done
+ pop af
+ ldh [hVBlank], a
+ call Printer_CleanUpAfterSend
+ call SafeLoadTempTilemapToTilemap
+ xor a
+ ldh [rIF], a
+ pop af
+ ldh [rIE], a
+ pop af
+ ld [wPrinterQueueLength], a
+ ret
+
+PrintMailAndExit:
+ ld a, [wPrinterQueueLength]
+ push af
+ xor a
+ ldh [hPrinter], a
+ call Printer_PlayMusic
+
+ ldh a, [rIE]
+ push af
+ xor a
+ ldh [rIF], a
+ ld a, (1 << SERIAL) | (1 << VBLANK)
+ ldh [rIE], a
+
+ xor a
+ ldh [hBGMapMode], a
+
+ ln a, 1, 3 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ ld hl, hVBlank
+ ld a, [hl]
+ push af
+ ld [hl], 4
+
+ ld a, 18 / 2
+ ld [wPrinterQueueLength], a
+ call SendScreenToPrinter
+
+ pop af
+ ldh [hVBlank], a
+ call Printer_CleanUpAfterSend
+ call Printer_CopyBufferToTilemap
+
+ xor a
+ ldh [rIF], a
+ pop af
+ ldh [rIE], a
+
+ call Printer_ExitPrinter
+ pop af
+ ld [wPrinterQueueLength], a
+ ret
+
+PrintPartymon:
+ ld a, [wPrinterQueueLength]
+ push af
+ xor a
+ ldh [hPrinter], a
+ call Printer_PlayMusic
+
+ ldh a, [rIE]
+ push af
+ xor a
+ ldh [rIF], a
+ ld a, (1 << SERIAL) | (1 << VBLANK)
+ ldh [rIE], a
+
+ xor a
+ ldh [hBGMapMode], a
+ farcall PrintPartyMonPage1
+ ln a, 1, 0 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+
+ ld hl, hVBlank
+ ld a, [hl]
+ push af
+ ld [hl], 4
+
+ ld a, 16 / 2
+ ld [wPrinterQueueLength], a
+ call Printer_ResetJoypadRegisters
+ call SendScreenToPrinter
+ jr c, .cancel
+
+ call Printer_CleanUpAfterSend
+ ld c, 12
+ call DelayFrames
+
+ xor a
+ ldh [hBGMapMode], a
+ farcall PrintPartyMonPage2
+ ln a, 0, 3 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+
+ ld a, 18 / 2
+ ld [wPrinterQueueLength], a
+ call Printer_ResetJoypadRegisters
+ call SendScreenToPrinter
+.cancel
+ pop af
+ ldh [hVBlank], a
+ call Printer_CleanUpAfterSend
+
+ call Printer_CopyBufferToTilemap
+ xor a
+ ldh [rIF], a
+ pop af
+ ldh [rIE], a
+ call Printer_ExitPrinter
+
+ pop af
+ ld [wPrinterQueueLength], a
+ ret
+
+_PrintDiploma:
+ ld a, [wPrinterQueueLength]
+ push af
+
+ farcall PlaceDiplomaOnScreen
+
+ xor a
+ ldh [hPrinter], a
+ call Printer_PlayMusic
+
+ ldh a, [rIE]
+ push af
+ xor a
+ ldh [rIF], a
+ ld a, (1 << SERIAL) | (1 << VBLANK)
+ ldh [rIE], a
+
+ ld hl, hVBlank
+ ld a, [hl]
+ push af
+ ld [hl], $4
+
+ ln a, 1, 0 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call Printer_ResetJoypadRegisters
+
+ ld a, 18 / 2
+ ld [wPrinterQueueLength], a
+ call SendScreenToPrinter
+ jr c, .cancel
+ call Printer_CleanUpAfterSend
+ ld c, 12
+ call DelayFrames
+
+ call LoadTilemapToTempTilemap
+ xor a
+ ldh [hBGMapMode], a
+
+ farcall PrintDiplomaPage2
+
+ ln a, 0, 3 ; to be loaded to wPrinterMargins
+ call Printer_PrepareTilemapForPrint
+ call SafeLoadTempTilemapToTilemap
+ call Printer_ResetJoypadRegisters
+
+ ld a, 18 / 2
+ ld [wPrinterQueueLength], a
+ call SendScreenToPrinter
+.cancel
+ pop af
+ ldh [hVBlank], a
+ call Printer_CleanUpAfterSend
+
+ xor a
+ ldh [rIF], a
+ pop af
+ ldh [rIE], a
+ call Printer_ExitPrinter
+
+ pop af
+ ld [wPrinterQueueLength], a
+ ret
+
+CheckCancelPrint:
+ ldh a, [hJoyDown]
+ and B_BUTTON
+ jr nz, .pressed_b
+ and a
+ ret
+
+.pressed_b
+ ld a, [wc980]
+ cp $c
+ jr nz, .cancel
+.loop
+ ld a, [wPrinterOpcode]
+ and a
+ jr nz, .loop
+ ld a, $16 ; cancel
+ ld [wPrinterOpcode], a
+ ld a, $88
+ ldh [rSB], a
+ ld a, (0 << rSC_ON) | (1 << rSC_CLOCK)
+ ldh [rSC], a
+ ld a, (1 << rSC_ON) | (1 << rSC_CLOCK)
+ ldh [rSC], a
+.loop2
+ ld a, [wPrinterOpcode]
+ and a
+ jr nz, .loop2
+
+.cancel
+ ld a, $1
+ ldh [hPrinter], a
+ scf
+ ret
+
+Printer_CopyTilemapToBuffer:
+ hlcoord 0, 0
+ ld de, wPrinterTilemapBuffer
+ ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
+ call CopyBytes
+ ret
+
+Printer_CopyBufferToTilemap:
+ ld hl, wPrinterTilemapBuffer
+ decoord 0, 0
+ ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
+ call CopyBytes
+ ret
+
+Printer_ResetJoypadRegisters:
+ xor a
+ ldh [hJoyReleased], a
+ ldh [hJoyPressed], a
+ ldh [hJoyDown], a
+ ldh [hJoyLast], a
+ ret
+
+Printer_PlayMusic:
+ ld de, MUSIC_PRINTER
+ call PlayMusic2
+ ret
+
+Printer_RestartMapMusic:
+ call RestartMapMusic
+ ret
+
+CheckPrinterStatus:
+; Check for printer errors
+; If [ca88] == -1, we're disconnected
+ ld a, [wPrinterHandshake]
+ cp -1
+ jr nz, .printer_connected
+ ld a, [wPrinterStatusFlags]
+ cp -1
+ jr z, .error_2
+.printer_connected
+; ca89 contains printer status flags
+ ld a, [wPrinterStatusFlags]
+ and %11100000
+ ret z ; no error
+
+ bit 7, a
+ jr nz, .error_1
+ bit 6, a
+ jr nz, .error_4
+ ; paper error
+ ld a, PRINTER_ERROR_3
+ jr .load_text_index
+
+.error_4
+ ; temperature error
+ ld a, PRINTER_ERROR_4
+ jr .load_text_index
+
+.error_1
+ ; printer battery low
+ ld a, PRINTER_ERROR_1
+ jr .load_text_index
+
+.error_2
+ ; connection error
+ ld a, PRINTER_ERROR_2
+.load_text_index
+ ld [wPrinterStatus], a
+ ret
+
+PlacePrinterStatusString:
+; Print nonzero printer status
+ ld a, [wPrinterStatus]
+ and a
+ ret z
+ push af
+ xor a
+ ldh [hBGMapMode], a
+ hlcoord 0, 5
+ lb bc, 10, 18
+ call Textbox
+ pop af
+ ld e, a
+ ld d, 0
+ ld hl, PrinterStatusStringPointers
+ add hl, de
+ add hl, de
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ hlcoord 1, 7
+ ld a, BANK(GBPrinterStrings)
+ call FarString
+ hlcoord 2, 15
+ ld de, String_PressBToCancel
+ call PlaceString
+ ld a, $1
+ ldh [hBGMapMode], a
+ xor a
+ ld [wPrinterStatus], a
+ ret
+
+Unreferenced_Function847b9:
+ ld a, [wPrinterStatus]
+ and a
+ ret z
+ push af
+ xor a
+ ldh [hBGMapMode], a
+ hlcoord 2, 4
+ lb bc, 13, 16
+ call ClearBox
+ pop af
+ ld e, a
+ ld d, 0
+ ld hl, PrinterStatusStringPointers
+ add hl, de
+ add hl, de
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ hlcoord 4, 7
+ ld a, BANK(GBPrinterStrings)
+ call FarString
+ hlcoord 4, 15
+ ld de, String_PressBToCancel
+ call PlaceString
+ ld a, $1
+ ldh [hBGMapMode], a
+ xor a
+ ld [wPrinterStatus], a
+ ret
+
+String_PressBToCancel:
+ db "Press B to Cancel@"
+
+PrinterStatusStringPointers:
+ dw GBPrinterString_Null ; @
+ dw GBPrinterString_CheckingLink ; CHECKING LINK
+ dw GBPrinterString_Transmitting ; TRANSMITTING
+ dw GBPrinterString_Printing ; PRINTING
+ dw GBPrinterString_PrinterError1 ; error 1
+ dw GBPrinterString_PrinterError2 ; error 2
+ dw GBPrinterString_PrinterError3 ; error 3
+ dw GBPrinterString_PrinterError4 ; error 4
+
+PrintPCBox_Page1:
+ xor a
+ ld [wWhichBoxMonToPrint], a
+ hlcoord 0, 0
+ ld bc, SCREEN_HEIGHT * SCREEN_WIDTH
+ ld a, " "
+ call ByteFill
+ call Printer_PlaceEmptyBoxSlotString
+
+ hlcoord 0, 0
+ ld bc, 9 * SCREEN_WIDTH
+ ld a, " "
+ call ByteFill
+
+ call Printer_PlaceSideBorders
+ call Printer_PlaceTopBorder
+
+ hlcoord 4, 3
+ ld de, .String_PokemonList
+ call PlaceString
+
+ ld a, [wWhichBoxToPrint]
+ ld bc, BOX_NAME_LENGTH
+ ld hl, wBoxNames
+ call AddNTimes
+ ld d, h
+ ld e, l
+ hlcoord 6, 5
+ call PlaceString
+ ld a, 1
+ call Printer_GetBoxMonSpecies
+ hlcoord 2, 9
+ ld c, 3
+ call Printer_PrintBoxListSegment
+ ret
+
+.String_PokemonList:
+ db "#MON LIST@"
+
+PrintPCBox_Page2:
+ hlcoord 0, 0
+ ld bc, SCREEN_HEIGHT * SCREEN_WIDTH
+ ld a, " "
+ call ByteFill
+ call Printer_PlaceEmptyBoxSlotString
+ call Printer_PlaceSideBorders
+ ld a, [wFinishedPrintingBox]
+ and a
+ ret nz
+ ld a, 4
+ call Printer_GetBoxMonSpecies
+ hlcoord 2, 0
+ ld c, 6
+ call Printer_PrintBoxListSegment
+ ret
+
+PrintPCBox_Page3:
+ hlcoord 0, 0
+ ld bc, SCREEN_HEIGHT * SCREEN_WIDTH
+ ld a, " "
+ call ByteFill
+ call Printer_PlaceEmptyBoxSlotString
+ call Printer_PlaceSideBorders
+ ld a, [wFinishedPrintingBox]
+ and a
+ ret nz
+ ld a, 10
+ call Printer_GetBoxMonSpecies
+ hlcoord 2, 0
+ ld c, 6
+ call Printer_PrintBoxListSegment
+ ret
+
+PrintPCBox_Page4:
+ hlcoord 0, 0
+ ld bc, SCREEN_HEIGHT * SCREEN_WIDTH
+ ld a, " "
+ call ByteFill
+ call Printer_PlaceEmptyBoxSlotString
+ hlcoord 1, 15
+ lb bc, 2, 18
+ call ClearBox
+ call Printer_PlaceSideBorders
+ call Printer_PlaceBottomBorders
+ ld a, [wFinishedPrintingBox]
+ and a
+ ret nz
+ ld a, 16
+ call Printer_GetBoxMonSpecies
+ hlcoord 2, 0
+ ld c, 5
+ call Printer_PrintBoxListSegment
+ ret
+
+Printer_PrintBoxListSegment:
+ ld a, [wBankOfBoxToPrint]
+ call OpenSRAM
+.loop
+ ld a, c
+ and a
+ jp z, .max_length
+ dec c
+ ld a, [de]
+ cp $ff
+ jp z, .finish
+ ld [wNamedObjectIndexBuffer], a
+ ld [wCurPartySpecies], a
+
+ push bc
+ push hl
+ push de
+
+ push hl
+ ld bc, 16
+ ld a, " "
+ call ByteFill
+ pop hl
+
+ push hl
+ call GetBasePokemonName
+ pop hl
+
+ push hl
+ call PlaceString
+ ld a, [wCurPartySpecies]
+ cp EGG
+ pop hl
+ jr z, .ok2
+
+ ld bc, MON_NAME_LENGTH
+ add hl, bc
+ call Printer_GetMonGender
+ ld bc, SCREEN_WIDTH - MON_NAME_LENGTH
+ add hl, bc
+ ld a, "/"
+ ld [hli], a
+
+ push hl
+ ld bc, 14
+ ld a, " "
+ call ByteFill
+ pop hl
+
+ push hl
+ ld a, [wAddrOfBoxToPrint]
+ ld l, a
+ ld a, [wAddrOfBoxToPrint + 1]
+ ld h, a
+ ld bc, sBoxMonNicknames - sBox
+ add hl, bc
+ ld bc, MON_NAME_LENGTH
+ ld a, [wWhichBoxMonToPrint]
+ call AddNTimes
+ ld e, l
+ ld d, h
+ pop hl
+
+ push hl
+ call PlaceString
+ pop hl
+
+ ld bc, MON_NAME_LENGTH
+ add hl, bc
+ push hl
+ ld a, [wAddrOfBoxToPrint]
+ ld l, a
+ ld a, [wAddrOfBoxToPrint + 1]
+ ld h, a
+ ld bc, 2 + MONS_PER_BOX + MON_LEVEL
+ add hl, bc
+ ld bc, BOXMON_STRUCT_LENGTH
+ ld a, [wWhichBoxMonToPrint]
+ call AddNTimes
+ ld a, [hl]
+ pop hl
+ call PrintLevel_Force3Digits
+.ok2
+ ld hl, wWhichBoxMonToPrint
+ inc [hl]
+ pop de
+ pop hl
+ ld bc, 3 * SCREEN_WIDTH
+ add hl, bc
+ pop bc
+ inc de
+ jp .loop
+
+.finish
+ ld a, $1
+ ld [wFinishedPrintingBox], a
+.max_length
+ call CloseSRAM
+ ret
+
+Printer_GetMonGender:
+ push hl
+ ld a, [wAddrOfBoxToPrint]
+ ld l, a
+ ld a, [wAddrOfBoxToPrint + 1]
+ ld h, a
+ ld bc, 2 + MONS_PER_BOX + MON_DVS
+ add hl, bc
+ ld bc, BOXMON_STRUCT_LENGTH
+ ld a, [wWhichBoxMonToPrint]
+ call AddNTimes
+ ld de, wTempMonDVs
+ ld a, [hli]
+ ld [de], a
+ inc de
+ ld a, [hli]
+ ld [de], a
+ ld a, [wWhichBoxMonToPrint]
+ ld [wCurPartyMon], a
+ ld a, TEMPMON
+ ld [wMonType], a
+ farcall GetGender
+ ld a, " "
+ jr c, .got_gender
+ ld a, "♂"
+ jr nz, .got_gender
+ ld a, "♀"
+.got_gender
+ pop hl
+ ld [hli], a
+ ret
+
+Printer_GetBoxMonSpecies:
+ push hl
+ ld e, a
+ ld d, $0
+ ld a, [wAddrOfBoxToPrint]
+ ld l, a
+ ld a, [wAddrOfBoxToPrint + 1]
+ ld h, a
+ add hl, de
+ ld e, l
+ ld d, h
+ pop hl
+ ret
+
+Printer_PlaceTopBorder:
+ hlcoord 0, 0
+ ld a, "┌"
+ ld [hli], a
+ ld a, "─"
+ ld c, SCREEN_WIDTH - 2
+.loop
+ ld [hli], a
+ dec c
+ jr nz, .loop
+ ld a, "┐"
+ ld [hl], a
+ ret
+
+Printer_PlaceSideBorders:
+ hlcoord 0, 0
+ ld de, SCREEN_WIDTH - 1
+ ld c, SCREEN_HEIGHT
+.loop
+ ld a, "│"
+ ld [hl], a
+ add hl, de
+ ld a, "│"
+ ld [hli], a
+ dec c
+ jr nz, .loop
+ ret
+
+Printer_PlaceBottomBorders:
+ hlcoord 0, 17
+ ld a, "└"
+ ld [hli], a
+ ld a, "─"
+ ld c, SCREEN_WIDTH - 2
+.loop
+ ld [hli], a
+ dec c
+ jr nz, .loop
+ ld a, "┘"
+ ld [hl], a
+ ret
+
+Printer_PlaceEmptyBoxSlotString:
+ hlcoord 2, 0
+ ld c, 6
+.loop
+ push bc
+ push hl
+ ld de, String84a21
+ call PlaceString
+ pop hl
+ ld bc, 3 * SCREEN_WIDTH
+ add hl, bc
+ pop bc
+ dec c
+ jr nz, .loop
+ ret
+
+String84a21:
+ db " ------@"
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