Routines
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C2BA: Process Screen Character
Used by the routine at CheckTVFlagAndProcess.
On a new line, resets the parser row. Any other character is printed.
Input
A Character code
ProcessScreenCharacter C2BA PUSH HL Read the storage decorative line screen position.
C2BB PUSH BC
C2BC PUSH AF
C2BD LD HL,($C1F8)
C2C0 LD A,($C1FA) Read the decorative line into C.
C2C3 LD C,A
C2C4 POP AF Restore the character from the stack.
C2C5 PUSH AF Keep a copy of the character on the stack.
C2C6 CP $0D Jump ahead to ProcessScreenCharacter_ScreenWidthCount if this character is not a new line (0D).
C2C8 JR NZ,ProcessScreenCharacter_ScreenWidthCount
ProcessScreenCharacter_Loop C2CA LD A,($A019) Jump to ProcessScreenCharacter_Next if the parser is not 0F.
C2CD CP $0F
C2CF JR NZ,ProcessScreenCharacter_Next
Scroll screen and reset display.
C2D1 CALL ScrollScreenAndResetDisplay Call ScrollScreenAndResetDisplay to scroll the screen and reset the display.
C2D4 LD A,$FF Start the count at FF so the next step makes it zero.
ProcessScreenCharacter_Next C2D6 INC A Add one to the count at A019 and point HL at 5020.
C2D7 LD ($A019),A
C2DA LD HL,$5020
C2DD LD C,$02 Use a length of 02.
Update screen display.
C2DF CALL UpdateScreenDisplay Call UpdateScreenDisplay to update the screen.
Screen flag selects the width.
C2E2 LD A,($C128) Take 24 and go to ProcessScreenCharacter_RecordScreenWidth if the byte at C128 is zero.
C2E5 AND A
C2E6 LD A,$24
C2E8 JR Z,ProcessScreenCharacter_RecordScreenWidth
C2EA LD A,$12 Take a width of 12 and store it from ProcessScreenCharacter_RecordScreenWidth.
C2EC JR ProcessScreenCharacter_RecordScreenWidth
Print this character and leave the row once the width runs out.
Print character.
ProcessScreenCharacter_ScreenWidthCount C2EE CALL PrintCharacter Call PrintCharacter to print this character.
C2F1 LD A,($C1F5) Jump back to ProcessScreenCharacter_Loop if the count is finished.
C2F4 DEC A
C2F5 JP Z,ProcessScreenCharacter_Loop
ProcessScreenCharacter_RecordScreenWidth C2F8 LD ($C1F5),A Record the screen width and record the storage decorative line screen position.
C2FB LD ($C1F8),HL
C2FE LD A,C
C2FF LD ($C1FA),A Record the decorative line.
C302 POP AF Restore the saved result, the saved count and the saved pointer from the stack.
C303 POP BC
C304 POP HL
C305 RET Return.
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