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174 lines
8.4 KiB
Plaintext
174 lines
8.4 KiB
Plaintext
; Copyright 2018 faddenSoft. All Rights Reserved.
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; See the LICENSE.txt file for distribution terms (Apache 2.0).
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;
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; Sources:
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; NiftyList, by Dave Lyons
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; What's Where in the Apple, by William F. Luebbert
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*SYNOPSIS Symbols from the Apple II monitor ROM
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; zero page usage
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MON_WNDLEFT @ $20 ;left column of scroll window
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MON_WNDWDTH @ $21 ;width of scroll window
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MON_WNDTOP @ $22 ;top of scroll window
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MON_WNDBTM @ $23 ;bottom of scroll window
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MON_CH @ $24 ;cursor horizontal displacement
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MON_CV @ $25 ;cursor vertical displacement
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MON_GBASL @ $26 ;base address for lo-res drawing (lo)
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MON_GBASH @ $27 ;base address for lo-res drawing (hi)
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MON_BASL @ $28 ;base address for text output (lo)
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MON_BASH @ $29 ;base address for text output (hi)
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;MON_BAS2L @ $2A ;used when scrolling text
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;MON_BAS2H @ $2B ;used when scrolling text
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MON_H2 @ $2C ;right end of horizontal line drawn by HLINE
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MON_V2 @ $2D ;bottom of vertical line drawn by VLINE
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MON_COLOR @ $30 ;lo-res graphics color
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MON_INVFLAG @ $32 ;text mask (255=normal, 127=flash, 63=inv)
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MON_PROMPT @ $33 ;prompt character, used by GETLN
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MON_CSWL @ $36 ;character output hook (lo)
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MON_CSWH @ $37 ;character output hook (hi)
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MON_KSWL @ $38 ;character input hook (lo)
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MON_KSWH @ $39 ;character input hook (hi)
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MON_PCL @ $3A ;program counter save
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MON_PCH @ $3B ;program counter save
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MON_A1L @ $3C ;general purpose
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MON_A1H @ $3D ;general purpose
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MON_A2L @ $3E ;general purpose
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MON_A2H @ $3F ;general purpose
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MON_A3L @ $40 ;general purpose
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MON_A3H @ $41 ;general purpose
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MON_A4L @ $42 ;general purpose
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MON_A4H @ $43 ;general purpose
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MON_A5L @ $44 ;general purpose
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MON_A5H @ $45 ;general purpose
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MON_RNDL @ $4E ;low byte of KEYIN "random" value
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MON_RNDH @ $4F ;high byte of KEYIN "random" value
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; page 3 vectors
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MON_BRKV @ $03F0 2 ;address of BRK handler
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MON_SOFTEVEC @ $03F2 2 ;address of RESET handler
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MON_PWREDUP @ $03F4 ;power-up RESET checksum
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MON_USRADDR @ $03F8 3 ;jump to function that handles monitor Ctrl-Y
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MON_NMIVEC @ $03FB 3 ;jump to function that handles NMI
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MON_IRQADDR @ $03FE 2 ;address of IRQ handler
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; monitor entry points
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MON_PLOT @ $F800 ;lo-res plot at X=Y-reg, Y=Acc
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MON_PLOT1 @ $F80E ;lo-res plot at X=Y-reg, Y per GBASL/H
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MON_HLINE @ $F819 ;lo-res horiz line at Y=Acc with X from $2c
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MON_VLINE @ $F828 ;lo-res vert line at X=Y-reg and Y from Acc to $2b
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MON_CLRSCR @ $F832 ;clear lo-res screen to black
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MON_CLRTOP @ $F836 ;clear top part of lo-res screen to black
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MON_GBASCALC @ $F847 ;compute gfx base addr for line in Acc
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MON_NXTCOL @ $F85F ;change lo-res color to (color)+3
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MON_SETCOL @ $F864 ;set lo-res color to Acc
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MON_SCRN @ $F871 ;load Acc with lo-res value at Y=Acc, X=X-reg
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MON_INSDS1_2 @ $F88C
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MON_INSDS2 @ $F88E
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MON_GET816LEN @ $F890
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MON_INSTDSP @ $F8D0 ;monitor/mini-asm display
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MON_PRNTYX @ $F940 ;print Y-reg/X-reg as 4 hex digits
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MON_PRNTAX @ $F941 ;print Acc/X-reg as 4 hex digits
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MON_PRNTX @ $F944 ;print X-reg as 2 hex digits
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MON_PRBLNK @ $F948 ;print 3 spaces
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MON_PRBL2 @ $F94A ;print multiple spaces, count in X-reg
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MON_PCADJ @ $F953 ;monitor/mini-asm PC adjust
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MON_TEXT2COPY @ $F962
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MON_OLDIRQ @ $FA40 ;autostart ROM IRQ handler
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MON_BREAK @ $FA4C
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MON_OLDBRK @ $FA59
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MON_RESET @ $FA62 ;autostart ROM RESET handler
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MON_PWRUP @ $FAA6
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MON_SLOOP @ $FABA
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MON_REGDSP @ $FAD7 ;display register contents
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MON_RTBL @ $FB19
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MON_PREAD @ $FB1E ;read paddle specifed by X-reg, return in Y-reg
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MON_PREAD4 @ $FB21
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MON_INIT @ $FB2F ;screen initialization
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MON_SETTXT @ $FB39 ;set screen to text mode
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MON_SETGR @ $FB40 ;set screen to graphics mode
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MON_SETWND @ $FB4B ;set normal low-res graphics window
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MON_SETWND2 @ $FB51
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MON_TABV @ $FB5B ;place cursor at line (A-reg) and column (CH)
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MON_APPLEII @ $FB60 ;clear screen and put "Apple II" into first line
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MON_SETPWRC @ $FB6F
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MON_VIDWAIT @ $FB78 ;autostart: handle Ctrl+S after CR
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MON_KBDWAIT @ $FB88
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MON_VERSION @ $FBB3 ;used to detect system version
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MON_ZIDBYTE2 @ $FBBF ;used to detect system version
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MON_ZIDBYTE @ $FBC0 ;used to detect system version
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MON_BASCALC @ $FBC1 ;calculate text base address
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MON_BELL1 @ $FBDD ;sound bell regardless of output device
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MON_BELL1_2 @ $FBE2
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MON_BELL2 @ $FBE4 ;sound bell
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MON_STORADV @ $FBF0
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MON_ADVANCE @ $FBF4 ;move cursor right
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MON_VIDOUT @ $FBFD ;output Acc as text
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MON_BS @ $FC10 ;move cursor left
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MON_UP @ $FC1A ;move cursor up
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MON_VTAB @ $FC22 ;tab to row specified in CV
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MON_VTABZ @ $FC24 ;tab to row specified in Acc
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MON_CLREOP @ $FC42 ;clear screen from cursor to end of page
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MON_HOME @ $FC58 ;clear screen and reset text output to top-left
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MON_CR @ $FC62 ;perform a carriage return
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MON_LF @ $FC66 ;perform a line feed
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MON_SCROLL @ $FC70 ;scroll up one line
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MON_CLREOL @ $FC9C ;clear to end of line
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MON_CLREOLZ @ $FC9E ;clear from pos in Y-reg to end of line
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MON_WAIT @ $FCA8 ;delay for (26 + 27*Acc + 5*(Acc*Acc))/2 cycles
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MON_NXTA4 @ $FCB4 ;increment A4, fall through into NXTA1
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MON_NXTA1 @ $FCBA ;increment A1; set carry if A1 >= A2 before inc
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MON_HEADR @ $FCC9 ;write cassette sync
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MON_WRTAPE @ $FCE5 ;casssette write
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MON_RD2BIT @ $FCFA ;cassette read
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MON_RDKEY @ $FD0C ;read key from input device via $38-39
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MON_FD10 @ $FD10
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MON_RDKEY1 @ $FD18
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MON_KEYIN @ $FD1B ;get next key input from keyboard hardware
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MON_RDCHAR @ $FD35 ;calls RDKEY to get next char
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MON_GETLNZ @ $FD67 ;get a line of input
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MON_GETLN @ $FD6A ;get a line of input
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MON_GETLN0 @ $FD6C ;GETLN with prompt char in A-reg
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MON_GETLN1 @ $FD6F ;GETLN with no prompt char
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MON_CROUT1 @ $FD8B ;clear to EOL and print a carriage return
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MON_CROUT @ $FD8E ;print a carriage return
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MON_PRA1 @ $FD92 ;print CR, then hex of A1H/A1L, then minus sign
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MON_PRBYTE @ $FDDA ;print Acc as two-digit hex number
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MON_PRHEX @ $FDE3 ;print right nibble of Acc as single hex digit
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MON_COUT @ $FDED ;print Acc to output device via $36-37
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MON_COUT1 @ $FDF0 ;print Acc to screen
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MON_COUTZ @ $FDF6
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MON_IDROUTINE @ $FE1F ;RTS on 8-bit, ID routine on IIgs
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MON_MOVE @ $FE2C ;move bytes from A1 to A4 until A1=A2
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MON_LIST @ $FE5E ;disassemble 20 instructions (not on GS)
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MON_SETINV @ $FE80 ;set video mode to inverse
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MON_SETNORM @ $FE84 ;set video mode to normal
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MON_SETKBD @ $FE89 ;reset char input handler to ROM
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MON_INPORT @ $FE8B ;set char input handler to slot in A-reg
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MON_SETVID @ $FE93 ;reset char output handler to ROM
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MON_OUTPORT @ $FE95 ;set char output handler to slot in A-reg
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MON_GO @ $FEB6
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MON_WRITE @ $FECD ;write data to cassette
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MON_READ @ $FEFD ;read data from cassette
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MON_READ2 @ $FF02 ;read data from cassette
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MON_PRERR @ $FF2D ;print "ERR" and sound bell
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MON_BELL @ $FF3A ;sound bell
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MON_RESTORE @ $FF3F ;restore 6502 registers from $45-48
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MON_SAVE @ $FF4A ;save 6502 registers to $45-49
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MON_IORTS @ $FF58 ;JSR here to find out where one is
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MON_OLDRST @ $FF59 ;RESET entry point
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MON_MON @ $FF65 ;normal entry to monitor
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MON_MONZ @ $FF69 ;reset and enter monitor
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MON_MONZ2 @ $FF6C
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MON_MONZ4 @ $FF70
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MON_DIG @ $FF8A
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MON_GETNUM @ $FFA7
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MON_NXTCHR @ $FFAD ;part of GETLN input loop
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MON_TOSUB @ $FFBE
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MON_ZMODE @ $FFC7
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; locations defined by the 6502
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MON_6502_NMI @ $FFFA 2 ;6502 NMI vector
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MON_6502_RESET @ $FFFC 2 ;6502 reset vector
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MON_6502_IRQ @ $FFFE 2 ;6502 IRQ vector
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