diff options
Diffstat (limited to 'home/serial.asm')
| -rw-r--r-- | home/serial.asm | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/home/serial.asm b/home/serial.asm index c8c7cbe9..5fe7fb81 100644 --- a/home/serial.asm +++ b/home/serial.asm @@ -1,4 +1,4 @@ -Serial:: ; 1f78 (0:1f78) +Serial:: push af push bc push de @@ -55,7 +55,7 @@ Serial:: ; 1f78 (0:1f78) ; hl = send data ; de = receive data ; bc = length of data -Serial_ExchangeBytes:: ; 216f (0:216f) +Serial_ExchangeBytes:: ld a, 1 ld [hSerialIgnoringInitialData], a .loop @@ -89,84 +89,84 @@ Serial_ExchangeBytes:: ; 216f (0:216f) jr nz, .loop ret -Serial_ExchangeByte:: ; 1ff6 (0:1ff6) +Serial_ExchangeByte:: xor a ld [hSerialReceivedNewData], a ld a, [hSerialConnectionStatus] cp USING_INTERNAL_CLOCK - jr nz, .asm_2003 + jr nz, .loop ld a, START_TRANSFER_INTERNAL_CLOCK ld [rSC], a -.asm_2003 +.loop ld a, [hSerialReceivedNewData] and a - jr nz, .asm_204d + jr nz, .ok ld a, [hSerialConnectionStatus] cp USING_EXTERNAL_CLOCK - jr nz, .asm_2028 + jr nz, .doNotIncrementUnknownCounter call IsUnknownCounterZero - jr z, .asm_2028 + jr z, .doNotIncrementUnknownCounter call WaitLoop_15Iterations push hl ld hl, wUnknownSerialCounter + 1 inc [hl] - jr nz, .asm_201f + jr nz, .noCarry dec hl inc [hl] -.asm_201f +.noCarry pop hl call IsUnknownCounterZero - jr nz, .asm_2003 + jr nz, .loop jp SetUnknownCounterToFFFF -.asm_2028 +.doNotIncrementUnknownCounter ld a, [rIE] and (1 << SERIAL) | (1 << TIMER) | (1 << LCD_STAT) | (1 << VBLANK) cp (1 << SERIAL) - jr nz, .asm_2003 + jr nz, .loop ld a, [wUnknownSerialCounter2] dec a ld [wUnknownSerialCounter2], a - jr nz, .asm_2003 + jr nz, .loop ld a, [wUnknownSerialCounter2 + 1] dec a ld [wUnknownSerialCounter2 + 1], a - jr nz, .asm_2003 + jr nz, .loop ld a, [hSerialConnectionStatus] cp USING_EXTERNAL_CLOCK - jr z, .asm_204d + jr z, .ok ld a, 255 .waitLoop dec a jr nz, .waitLoop -.asm_204d +.ok xor a ld [hSerialReceivedNewData], a ld a, [rIE] and (1 << SERIAL) | (1 << TIMER) | (1 << LCD_STAT) | (1 << VBLANK) sub (1 << SERIAL) - jr nz, .asm_2060 + jr nz, .skipReloadingUnknownCounter2 ld [wUnknownSerialCounter2], a ld a, $50 ld [wUnknownSerialCounter2 + 1], a -.asm_2060 +.skipReloadingUnknownCounter2 ld a, [hSerialReceiveData] cp SERIAL_NO_DATA_BYTE ret nz call IsUnknownCounterZero - jr z, .asm_207b + jr z, .done push hl ld hl, wUnknownSerialCounter + 1 ld a, [hl] dec a ld [hld], a inc a - jr nz, .asm_2075 + jr nz, .noBorrow dec [hl] -.asm_2075 +.noBorrow pop hl call IsUnknownCounterZero jr z, SetUnknownCounterToFFFF -.asm_207b +.done ld a, [rIE] and (1 << SERIAL) | (1 << TIMER) | (1 << LCD_STAT) | (1 << VBLANK) cp (1 << SERIAL) @@ -177,14 +177,14 @@ Serial_ExchangeByte:: ; 1ff6 (0:1ff6) call DelayFrame jp Serial_ExchangeByte -WaitLoop_15Iterations:: ; 208d (0:208d) +WaitLoop_15Iterations:: ld a, 15 .waitLoop dec a jr nz, .waitLoop ret -IsUnknownCounterZero:: ; 2093 (0:2093) +IsUnknownCounterZero:: push hl ld hl, wUnknownSerialCounter ld a, [hli] @@ -193,7 +193,7 @@ IsUnknownCounterZero:: ; 2093 (0:2093) ret ; a is always 0 when this is called -SetUnknownCounterToFFFF:: ; 209b (0:209b) +SetUnknownCounterToFFFF:: dec a ld [wUnknownSerialCounter], a ld [wUnknownSerialCounter + 1], a @@ -201,7 +201,7 @@ SetUnknownCounterToFFFF:: ; 209b (0:209b) ; This is used to exchange the button press and selected menu item on the link menu. ; The data is sent thrice and read twice to increase reliability. -Serial_ExchangeLinkMenuSelection:: ; 2247 (0:2247) +Serial_ExchangeLinkMenuSelection:: ld hl, wLinkMenuSelectionSendBuffer ld de, wLinkMenuSelectionReceiveBuffer ld c, 2 ; number of bytes to save @@ -226,13 +226,13 @@ Serial_ExchangeLinkMenuSelection:: ; 2247 (0:2247) jr nz, .loop ret -Serial_PrintWaitingTextAndSyncAndExchangeNybble:: ; 20ca (0:20ca) +Serial_PrintWaitingTextAndSyncAndExchangeNybble:: call SaveScreenTilesToBuffer1 - callab PrintWaitingText ; 1:4b89 + callab PrintWaitingText call Serial_SyncAndExchangeNybble jp LoadScreenTilesFromBuffer1 -Serial_SyncAndExchangeNybble:: ; 20db (0:20db) +Serial_SyncAndExchangeNybble:: ld a, $ff ld [wSerialExchangeNybbleReceiveData], a .loop1 @@ -272,7 +272,7 @@ Serial_SyncAndExchangeNybble:: ; 20db (0:20db) ld [wSerialSyncAndExchangeNybbleReceiveData], a ret -Serial_ExchangeNybble:: ; 211f (0:211f) +Serial_ExchangeNybble:: call .doExchange ld a, [wSerialExchangeNybbleSendData] add $60 @@ -295,7 +295,7 @@ Serial_ExchangeNybble:: ; 211f (0:211f) ld [wSerialExchangeNybbleReceiveData], a ret -Serial_SendZeroByte:: ; 2149 (0:2149) +Serial_SendZeroByte:: xor a ld [hSerialSendData], a ld a, [hSerialConnectionStatus] @@ -305,7 +305,7 @@ Serial_SendZeroByte:: ; 2149 (0:2149) ld [rSC], a ret -Serial_TryEstablishingExternallyClockedConnection:: ; 22fa (0:22fa) +Serial_TryEstablishingExternallyClockedConnection:: ld a, ESTABLISH_CONNECTION_WITH_EXTERNAL_CLOCK ld [rSB], a xor a @@ -314,10 +314,10 @@ Serial_TryEstablishingExternallyClockedConnection:: ; 22fa (0:22fa) ld [rSC], a ret -PrinterSerial__:: ; 2162 (0:2162) +PrinterSerial__:: call PrinterSerial pop hl pop de pop bc pop af - reti
\ No newline at end of file + reti |