NEW PREFIX /A2OSX.BUILD AUTO 4,1 *-------------------------------------- *K.PrintF.PadL .BS 1 *K.PrintF.PadC .BS 1 *HEXBUF .BS 4 *BCDBUF .BS 5 5, enough to handle 10 digits (32bits) *-------------------------------------- HEXBUF .EQ FAC K.PrintF.PadL .EQ FAC+4 K.PrintF.PadC .EQ FAC+5 BCDBUF .EQ ARG */-------------------------------------- * # FPutC * Print A (char) to hFILE * ## C * `int fputc ( hFILE stream , int character );` * ## ASM * **In:** * A : character * Y : stream * **Out:** * CC = success *\-------------------------------------- K.FPutC sta K.IOBuf tya bra K.PutChar.1 */-------------------------------------- * # PutChar * ## C * `int putchar ( int character );` * ## ASM * Print A (char) to StdOut * **In:** * A : char to print * **Out:** * CC = success *\-------------------------------------- K.PutChar sta K.IOBuf ldy #S.PS.hStdOut lda (pPs),y K.PutChar.1 jsr K.GetMemPtr bcs K.PutS.9 >STYA pFD ldx #1 K.PutChar.X >LDYAI K.IOBuf >STYA K.S.IOCTL+S.IOCTL.BUFPTR stx K.S.IOCTL+S.IOCTL.BYTECNT stz K.S.IOCTL+S.IOCTL.BYTECNT+1 jmp IO.Write.I */-------------------------------------- * # PutS * Write Str to StdOut, appends '\r\n' * ## C * `int puts ( const char * str );` * **In:** * ## ASM * `>LDYAI str` * `>SYSCALL puts` * **Out:** * CC = success *\-------------------------------------- K.PutS >STYA K.S.IOCTL+S.IOCTL.BUFPTR >STYA ZPPtr1 ldy #S.PS.hStdOut lda (pPs),y jsr K.FPutS.I bcs K.PutS.9 lda #13 sta K.IOBuf lda #10 sta K.IOBuf+1 ldx #2 bra K.PutChar.X K.PutS.9 rts */-------------------------------------- * # FPutS * Write Str to FILE * ## C * `int fputs (hFILE stream, const char * str );` * ## ASM * **In:** * `>PUSHW str` * `lda stream` * `>SYSCALL fputs` * **Out:** * CC = success *\-------------------------------------- K.FPutS pha >PULLA sta K.S.IOCTL+S.IOCTL.BUFPTR sta ZPPtr1 >PULLA sta K.S.IOCTL+S.IOCTL.BUFPTR+1 sta ZPPtr1+1 pla K.FPutS.I jsr K.GetMemPtr bcs K.PutS.9 >STYA pFD ldy #0 ldx #0 .1 lda (ZPPtr1),y beq .2 iny bne .1 inx inc ZPPtr1+1 bra .1 .2 sty K.S.IOCTL+S.IOCTL.BYTECNT stx K.S.IOCTL+S.IOCTL.BYTECNT+1 jmp IO.Write.I */-------------------------------------- * # PrintF/SPrintF/FPrintF * Prints C-Style String * ## C * `int printf ( const char * format, ... );` * `int sprintf ( char * str, const char * format, ... );` * `int fprintf ( hFILE stream, const char * format, ... );` * ## ASM * **In:** * PrintF : (example is for printing Y,A as integer : format="Y,A= %I", 2 bytes) * `>PUSHYA` * `...` * `>PUSHBI bytecount` * `>LDYAI format` * `>SYSCALL printf` * SPrintF : * `>PUSHYA` * `...` * `>PUSHBI bytecount` * `>PUSHWI format` * `>LDYAI str` * `>SYSCALL sprintf` * FPrintF : * `>PUSHYA` * `...` * `>PUSHBI bytecount` * `>PUSHWI format` * `lda hFILE` * `>SYSCALL fprintf` * **Out:** * CC : success, Y,A = bytes sent * CS : error, A = code from Output * Specifiers : * + %b : pull 1 byte to Print BIN * + %B : pull 2 bytes to Print BIN * + %d : pull 1 byte unsigned DEC 0..255 * + %D : pull 2 bytes unsigned DEC 0..65535 * + %u : pull 4 bytes long unsigned DEC 0..4294967295 * + %e : pull 5 Bytes float (-)1.23456789e+12 * + %f : pull 5 Bytes float (-)3.1415 * + %h : pull 1 byte to Print HEX * + %H : pull 2 bytes to Print HEX * + %i : pull 1 byte to Print signed DEC -128..127 * + %I : pull 2 bytes to Print signed DEC -32768..32767 * + %L : pull 4 bytes signed DEC -2147483648..2147483647 * + %n : pull 1 byte to Print low Nibble HEX * + %N : pull 1 byte to Print high Nibble HEX * + %s : pull 2 bytes ptr to C-Style String * + %S : pull 2 bytes ptr to P-Style String * + \b : Print 'BS' (08) * + \e : Print 'ESC' ($1B,27) * + \f : Print 'FF' ($0C,12) * + \n : Print 'LF' ($0A,10) * + \r : Print 'CR' ($0D,13) * + \\\\ : Print \ * + \\% : Print % * Modifiers for len and padding : * + %d : '9' '12' * + %2d : ' 9' '12' * + %02d : '09' '12' * + %11s : 'ABCDEFGH ' * + %011s : 'ABCDEFGH000' * + %2f : '3.14' *\-------------------------------------- K.SPrintF >STYA pIOBuf Out Buffer >PULLW ZPPtr1 format bra K.PrintF.1 K.FPrintF jsr K.GetMemPtr A = hFILE >STYA pFD >PULLW ZPPtr1 format bra K.PrintF.0 K.PrintF >STYA ZPPtr1 format ldy #S.PS.hStdOut lda (pPs),y jsr K.GetMemPtr >STYA pFD K.PrintF.0 >LDYAI K.IOBuf >STYA pIOBuf >STYA K.S.IOCTL+S.IOCTL.BUFPTR K.PrintF.1 stz K.S.IOCTL+S.IOCTL.BYTECNT stz K.S.IOCTL+S.IOCTL.BYTECNT+1 stz PrintF.GetByte+1 ldy #0 .1 lda (ZPPtr1),y beq .8 end of format.. iny cmp #'%' bne .10 stz K.PrintF.PadL lda #' ' sta K.PrintF.PadC .2 ldx #PrintFTBL2-PrintFTBL1-1 lda (ZPPtr1),y beq .99 iny .3 cmp PrintFTBL1,x do we have a %x command? beq .6 yes, jmp to it! dex bpl .3 no valid letter... cmp #'0' ...a 0...mmm... padding char? bne .4 ldx K.PrintF.PadL K.PrintF.PadL is not nul, so this 0 is second digit bne .5 * lda #'0' sta K.PrintF.PadC no, this is the first 0, so make it K.PrintF.PadC bra .2 .4 jsr MEM.IsDigit bcs .99 .5 and #$0F we have a digit pha save it... lda K.PrintF.PadL starts K.PrintF.PadL * 10 asl asl A=times 4 adc K.PrintF.PadL CC by ASL, A=times 5 asl times 10 sta K.PrintF.PadL pla get back digit adc K.PrintF.PadL sta K.PrintF.PadL bra .2 go get next char... .6 phy txa asl tax jsr PrintF.ESC ply bcc .1 bcs .99 .8 jsr PrintF.Flush bra .99 .10 cmp #'\' bne .20 ldx #PrintFTBL2.OUT-PrintFTBL2-1 lda (ZPPtr1),y beq .99 iny .12 cmp PrintFTBL2,x beq .13 dex bpl .12 bra .1 .13 lda PrintFTBL2.OUT,x .20 jsr PrintF.COut bcc .1 .99 php pha lda pStack sec ByteCnt byte adc (pStack) ... ByteCnt sta pStack CC pla plp rts *-------------------------------------- PrintF.ESC jmp (.1,x) .1 .DA PrintF.B,PrintF.BB .DA PrintF.D,PrintF.DD,PrintF.U .DA PrintF.E,PrintF.F .DA PrintF.H,PrintF.HH .DA PrintF.I,PrintF.II,PrintF.L .DA PrintF.N,PrintF.NN .DA PrintF.S,PrintF.SS *-------------------------------------- PrintFTBL1 .AS "bBdDuefhHiILnNsS" PrintFTBL2 .AS "befnr\%" PrintFTBL2.OUT .HS 08.1B.0C.0A.0D \b\e\f\n\r .DA #'\' \\ .DA #'%' \% *-------------------------------------- PrintF.BB jsr PrintF.GetByte bcs PrintF.BB.RTS pha jsr PrintF.B pla bcc PrintF.B.1 PrintF.BB.RTS rts *-------------------------------------- PrintF.B jsr PrintF.GetByte bcs PrintF.BB.RTS PrintF.B.1 ldx #8 .1 asl pha lda #'0' adc #0 add Carry jsr PrintF.COut pla bcs PrintF.BB.RTS dex bne .1 rts *-------------------------------------- PrintF.I sec signed short .HS 90 BCC PrintF.D clc unsigned short (BYTE) ldx #0 one byte jsr PrintF.GetByte bcs PrintF.BB.RTS sta HEXBUF stz HEXBUF+1 bra PrintF.DD.1 PrintF.II sec signed int .HS 90 BCC PrintF.DD clc unsigned int (WORD) ldx #1 two bytes jsr PrintF.GetByte bcs PrintF.BB.RTS sta HEXBUF jsr PrintF.GetByte bcs PrintF.BB.RTS sta HEXBUF+1 PrintF.DD.1 stz HEXBUF+2 stz HEXBUF+3 bra PrintF.U.1 PrintF.L sec signed long .HS 90 BCC PrintF.U clc unsigned long (DWORD) ldx #$ff .1 jsr PrintF.GetByte bcs PrintF.BB.RTS inx sta HEXBUF,x cpx #3 bne .1 * ldx #3 4 bytes PrintF.U.1 bcc PrintF.Hex2Dec unsigned, nothing to check lda HEXBUF,x get sign bpl PrintF.Hex2Dec * sec ldy #0 .1 lda HEXBUF,y two's complement of X bytes eor #$ff adc #0 sta HEXBUF,y iny dex bpl .1 sec tell to print a "-" sign.... *-------------------------------------- * Convert HEXBUF to ASCBUF decimal padded with 0 *-------------------------------------- PrintF.Hex2Dec ror .31+1 ldx #4 .1 stz BCDBUF,x Clear all 5 bytes dex bpl .1 sed switch to BCD mode ldx #32 let's roll 32 bits .2 asl HEXBUF rol HEXBUF+1 rol HEXBUF+2 rol HEXBUF+3 ldy #4 .3 lda BCDBUF,y adc BCDBUF,y sta BCDBUF,y dey bpl .3 dex bne .2 cld .31 bit #$ff SELF MODIFIED -sign to print before digits ? bpl .9 lda #'-' jsr PrintF.COut .9 lda K.PrintF.PadL any Len format ? beq .4 no lda #10 sec yes, Print only digits starting at pos 10-K.PrintF.PadL sbc K.PrintF.PadL .4 tax x=0 if no K.PrintF.PadL, or x=10-K.PrintF.PadL .5 txa X range 0 to 9 lsr CS if lo nibble (1,3,5,7,9) tay lda BCDBUF,y bcs .6 lsr lsr lsr lsr .6 and #$0F ora #$30 cmp #$30 beq .7 a zero? inc K.PrintF.PadL found a non zero, Print all digits, even if 0, next time ldy #'0' sty K.PrintF.PadC bra .8 .7 cpx #9 last digit ? beq .8 Print always ldy K.PrintF.PadL no pad to fill, do not Print 0 beq .10 lda K.PrintF.PadC fill with K.PrintF.PadC .8 jsr PrintF.COut bcs .99 .10 inx cpx #10 bne .5 clc .99 rts *-------------------------------------- * EXP(8) 1(s) 1significants(31) * http://apple2.org.za/gswv/a2zine/GS.WorldView/Resources/GS.TECH.INFO/AppleSoft/ *-------------------------------------- PrintF.E sec Force "E+12" .HS 90 BCC PrintF.F clc lda PrintF.GetByte+1 get current stack Ptr tay clc at least 5 bytes remaining ? adc #5 cmp (pStack) bcc .1 bne .9 .1 tya sec +1 adc pStack sta INDEX lda pStack+1 sta INDEX+1 ldx #ROM.SETFAC jsr GP.ROMCALL lda PrintF.GetByte+1 clc adc #5 sta PrintF.GetByte+1 ldy #3 In order not to trash A2osX.SaveSM,A2osX.SaveSX ldx #ROM.FOUT jsr GP.ROMCALL ldy #0 .2 lda $102,y beq .8 jsr PrintF.COut iny bne .2 .8 clc rts .9 sec rts *-------------------------------------- PrintF.HH jsr PrintF.GetByte bcs PrintF.H.9 pha jsr PrintF.H pla bra PrintF.H.1 *-------------------------------------- PrintF.H jsr PrintF.GetByte bcs PrintF.H.9 PrintF.H.1 pha jsr PrintF.NN.1 pla bra PrintF.N.1 PrintF.H.9 rts *-------------------------------------- PrintF.N jsr PrintF.GetByte bcs PrintF.H.9 PrintF.N.1 and #$0F bra PrintF.NN.2 PrintF.NN jsr PrintF.GetByte bcs PrintF.H.9 PrintF.NN.1 lsr lsr lsr lsr PrintF.NN.2 ora #$30 cmp #$3A bcc .1 adc #6 .1 jmp PrintF.COut *-------------------------------------- PrintF.S ldy #$ff CSTR .HS 2C bit abs PrintF.SS ldy #$00 PSTR jsr PrintF.GetByte bcs .9 sta ZPPtr2 jsr PrintF.GetByte bcs .9 sta ZPPtr2+1 lda (ZPPtr2) if CSTR:last char=0, if PSTR:len=0 beq .8 sty .1+1 .1 lda #$ff Self Modified bne .11 CSTR tya PSTR cmp (ZPPtr2) len check beq .2 .11 iny lda (ZPPtr2),y beq .2 jsr PrintF.COut bcs .9 lda K.PrintF.PadL beq .1 cpy K.PrintF.PadL bne .1 clc rts .2 lda K.PrintF.PadL beq .8 .3 cpy K.PrintF.PadL beq .8 lda K.PrintF.PadC jsr PrintF.COut bcs .9 iny bne .3 .8 clc .9 rts *-------------------------------------- PrintF.GetByte lda #$FF SELF MODIFIED LStack Ptr cmp (pStack) beq .9 CS phy tay iny lda (pStack),y sty PrintF.GetByte+1 ply * clc .9 rts *-------------------------------------- PrintF.COut phy ldy K.S.IOCTL+S.IOCTL.BYTECNT sta (pIOBuf),y inc K.S.IOCTL+S.IOCTL.BYTECNT bne .8 lda pIOBuf+1 eor /K.IOBuf bne .7 * we are printing to IObuf, flush! lda K.S.IOCTL+S.IOCTL.BYTECNT+1 pha lda #1 Flush $100 bytes sta K.S.IOCTL+S.IOCTL.BYTECNT+1 pla inc sta K.S.IOCTL+S.IOCTL.BYTECNT+1 .7 inc pIOBuf+1 inc K.S.IOCTL+S.IOCTL.BYTECNT+1 .8 ply clc rts *-------------------------------------- PrintF.Flush jmp IO.Write.I */-------------------------------------- * # FGetS * read bytes from stream into the array * pointed to by s, until n-1 bytes are read, or a is read and * transferred to s, or an end-of-file condition is encountered. The * string is then terminated with a null byte. * ## C * `char *fgets(hFILE stream, char * s, int n);` * ## ASM * **In:** * `>PUSHW n` * `>PUSHW s` * `lda hFILE` * `>SYSCALL fgets` * **Out:** * Y,A: s * CC = success *\-------------------------------------- K.FGetS pha save hFILE >PULLW ZPPtr1 s >PULLA sec sbc #2 eor #$ff sta ZPPtr2 !n >PULLA sbc #0 eor #$ff sta ZPPtr2+1 !n pla jsr K.GetMemPtr bcs .99 >STYA pFD jsr K.GetC.I bcs .9 .1 lda K.IOBuf cmp #C.CR beq .8 sta (ZPPtr1) inc ZPPtr1 bne .2 inc ZPPtr1+1 .2 inc ZPPtr2 bne .3 inc ZPPtr2+1 beq .8 .3 jsr IO.READ.I bcc .1 .8 clc .9 pha lda #0 sta (ZPPtr1) pla .99 rts */-------------------------------------- * # GetChar * Get char from StdIn * **In:** * none. * **Out:** * CC = success * A = char *\-------------------------------------- K.GetChar ldy #S.PS.hStdIn lda (pPs),y */-------------------------------------- * # GetC * Get char from Node * ## C * `int getc ( FILE * stream );` * ## ASM * **In:** * A = hNODE * **Out:** * CC = success * A = char *\-----------a--------------------------- K.GetC jsr K.GetMemPtr bcs K.GetC.9 >STYA pFD K.GetC.I >LDYAI K.IOBuf >STYA K.S.IOCTL+S.IOCTL.BUFPTR lda #1 sta K.S.IOCTL+S.IOCTL.BYTECNT stz K.S.IOCTL+S.IOCTL.BYTECNT+1 jsr IO.READ.I bcs K.GetC.9 lda K.IOBuf K.GetC.9 rts */-------------------------------------- * # SScanF * Read formatted data from string * ## C * `int sscanf ( const char * s, const char * format, ... );` * ## ASM * **In:** * `>PUSHW ptr` * `...` * `>PUSHBI bytecount` * `>PUSHWI format` * + %i : short int * + %d : byte * + %I : int * + %D : word * + %L : long int * + %U : dword * + %h : HEX byte * + %H : HEX word * + %s : string * TODO : %10s * `>LDYA s` * `>SYSCALL sscanf` * **Out:** * A = Number of arguments filled. *\-------------------------------------- K.SScanF >STYA ZPPtr2 String to Scan >PULLW ZPPtr1 format stz .5+1 reset LStack Ptr stz .80+1 rest Arg processed .1 lda (ZPPtr1) End Of format? beq .8 inc ZPPtr1 bne .11 inc ZPPtr1+1 .11 cmp #'%' Escape ? beq .2 cmp #' ' Space ? beq .12 cmp (ZPPtr2) Same char in string? bne .9 inc ZPPtr2 bne .1 inc ZPPtr2+1 bra .1 .12 inc ZPPtr2 Space.... bne .14 inc ZPPtr2+1 .14 cmp (ZPPtr2) another one ? beq .12 bne .1 .2 lda (ZPPtr1) Get specifier after % beq .9 unexpected End of format after "%" ? inc ZPPtr1 bne .21 inc ZPPtr1+1 .21 ldx #K.SScanFJMP-K.SScanFTBL-2 .3 cmp K.SScanFTBL,x beq .4 dex dex bpl .3 .9 jsr .8 lda #MLI.E.EOF sec rts .4 jsr .5 bcs .9 out of Ptr on stack bra .1 .8 lda pStack sec ByteCnt byte adc (pStack) ... ByteCnt sta pStack CC .80 lda #$ff SELF MODIFIED Arg porcessed .99 rts *-------------------------------------- .5 lda #$FF SELF MODIFIED LStack Ptr cmp (pStack) beq .99 CS tay iny lda (pStack),y sta ZPPtr3 iny lda (pStack),y sta ZPPtr3+1 get VAR Ptr sty .5+1 inc .80+1 parsed one more arg! jmp (K.SScanFJMP,x) *-------------------------------------- K.SScanFTBL .DA #'i,#1,#'d,#1,#'I,#2,#'D,#2,#'l,#4,#'u,#4,#'h,#1,#'H,#2,#'s,#2 K.SScanFJMP .DA K.SScanF.I .DA K.SScanF.D .DA K.SScanF.II .DA K.SScanF.DD .DA K.SScanF.L .DA K.SScanF.U .DA K.SScanF.H .DA K.SScanF.HH .DA K.SScanF.S *-------------------------------------- K.SScanF.I K.SScanF.D K.SScanF.II K.SScanF.DD K.SScanF.L K.SScanF.U lda K.SScanFTBL+1,x Get VAR size pha Save VAL size jsr STDLIB.GetDec bra K.SScanF.GetVAL *-------------------------------------- K.SScanF.HH K.SScanF.H lda K.SScanFTBL+1,x Get VAR size pha jsr STDLIB.GetHex K.SScanF.GetVAL jsr K.SScanF.Fwd Y=char count parsed .1 ply get back VAL size .2 lda STDLIB.32-1,y dey sta (ZPPtr3),y bne .2 .9 rts *-------------------------------------- K.SScanF.S ldy #$ff .1 iny lda (ZPPtr2),y Get char in string to scan sta (ZPPtr3),y store in param ptr beq K.SScanF.Fwd end of string to scan ? cmp (ZPPtr1) match format next char ? beq .2 cmp #' ' is it a space ? bne .1 .2 lda #0 add \0 to param ptr sta (ZPPtr3),y K.SScanF.Fwd tya Y=char count parsed clc adc ZPPtr2 sta ZPPtr2 bcc .8 clc inc ZPPtr2+1 .8 rts */-------------------------------------- * # FOpen * Open a file * ## C * `hFILE fopen ( const char * filename, short int mode, short int ftype, int auxtype );` * **In:** * ## ASM * `>PUSHWI auxtype` * `>PUSHBI ftype` * `>PUSHBI mode` * + O.RDONLY : if R and !exists -> ERROR * + O.WRONLY : if W and !exists -> CREATE * + O.APPEND : Append * + O.TEXT : Open/Append in Text mode * + O.CREATE : Create if not exists * http://man7.org/linux/man-pages/man3/fopen.3.html * r = O_RDONLY * w = O_WRONLY | O_CREAT | O_TRUNC * a = O_WRONLY | O_CREAT | O_APPEND * r+ = O_RDWR * w+ = O_RDWR | O_CREAT | O_TRUNC * a+ = O_RDWR | O_CREAT | O_APPEND * * TODO: mode="w+t=TYP,x=AUXTYPE" * `>LDYAI filename` * **Out:** * CC : A = hFILE * CS : A = EC *\-------------------------------------- K.FOpen jsr PFT.CheckPathYA jsr STDIO.SetMLIPathYA >PULLB K.FOpen.MODE >PULLB K.FOpen.TYPE >PULLW K.FOpen.AUXTYPE K.FOpen.I >MLICALL MLIGETFILEINFO bcc K.FOpen.10 Already Exists bit K.FOpen.MODE Create if not exists ? bpl K.FOpen.9 No, return MLI error lda #S.FI.A.FULL Yes, Create... sta K.MLI.PARAMS+3 Access lda K.FOpen.TYPE sta K.MLI.PARAMS+4 File type >LDYA K.FOpen.AUXTYPE >STYA K.MLI.PARAMS+5 Aux type lda #S.FI.ST.STD sta K.MLI.PARAMS+7 ldx #3 .1 lda DATELO,x sta K.MLI.PARAMS+8,x dex bpl .1 >MLICALL MLICREATE bcc K.FOpen.10 K.FOpen.9 rts K.FOpen.10 lda #S.FD.REG sec adc K.MLI.PATH tay lda #0 ldx #S.MEM.F.INIT0+S.MEM.F.FD jsr MEM.GetMem.YAX bcs K.FOpen.9 >STYA pFD stx .8+1 ldx #0 ldy #S.FD.REG .1 inx lda K.MLI.PATH,x sta (pFD),y iny cpx K.MLI.PATH bne .1 lda #0 sta (pFD),y * ldy #S.FD.T Done by GetMem0 * lda #S.FD.T.REG * sta (pFD),y jsr STDIO.SetIOBUF bcs .98 >MLICALL MLIOPEN bcs .98 lda K.MLI.PARAMS+5 get ref_num ldy #S.FD.REG.REF sta (pFD),y sta K.MLI.PARAMS+1 Next MLI Calls are REF_NUM based lda K.FOpen.MODE bit #O.WRONLY beq .20 Write mode ? and #O.APPEND Append ? bne .11 yes, go to end of file stz K.MLI.PARAMS+2 stz K.MLI.PARAMS+3 stz K.MLI.PARAMS+4 >MLICALL MLISETEOF no, reset size to 0 bra .21 .11 >MLICALL MLIGETEOF bcs .98 >MLICALL MLISETMARK .21 bcs .98 .20 lda K.FOpen.MODE and #O.TEXT Text Mode ? beq .8 lda #$FF sta K.MLI.PARAMS+2 lda #C.CR sta K.MLI.PARAMS+3 >MLICALL MLINEWLINE .8 lda #$ff Self Modified, hFD clc rts CC .98 pha save MLI error lda .8+1 jsr K.FClose pla get back MLI error sec rts *-------------------------------------- K.FOpen.MODE .BS 1 K.FOpen.TYPE .BS 1 K.FOpen.AUXTYPE .BS 2 */-------------------------------------- * # FClose * Close a file * ## C * int fclose ( hFILE stream ); * ## ASM * **In:** * A = hFILE * **Out:** *\-------------------------------------- K.FClose jsr PFT.CheckNodeA sta .8+1 jsr K.GetMemPtr >STYA pFD ldy #S.FD.REG.REF lda (pFD),y beq .1 sta K.MLI.PARAMS+1 >MLICALL MLICLOSE .1 ldy #S.FD.REG.IOBUF lda (pFD),y beq .8 jsr K.FreeMem .8 lda #$ff Self Modified jmp K.FreeMem .9 rts */-------------------------------------- * # FRead * int fread (hFILE stream, void * ptr, int count ); * Read bytes from file * **In:** * `>PUSHWI count` * `>PUSHW ptr` * `lda hFILE` * `>SYSCALL fread` * **Out:** * Y,A = Bytes Read *\-------------------------------------- K.FRead jsr PFT.CheckNodeA ldx #MLIREAD bra K.FReadWrite.1 */-------------------------------------- * # FWrite * Write bytes to file * ## C * `int fwrite (hFILE stream, const void * ptr, int count );` * ## ASM * **In:** * `>PUSHWI count` * `>PUSHW ptr` * `lda hFILE` * `>SYSCALL fwrite` * **Out:** * Y,A = Bytes Written *\-------------------------------------- K.FWrite jsr PFT.CheckNodeA ldx #MLIWRITE K.FReadWrite.1 jsr STDIO.GetRefNum >PULLW K.MLI.PARAMS+2 >PULLW K.MLI.PARAMS+4 lda #4 Param Count = 4 for MLIREAD & MLIWRITE jsr GP.MLICall bcs .9 >LDYA K.MLI.PARAMS+6 .9 rts */-------------------------------------- * # FFlush * ## C * int fflush(hFILE stream); * ## ASM * **In:** * A = hFILE *\-------------------------------------- K.FFlush jsr PFT.CheckNodeA jsr STDIO.GetRefNum >MLICALL MLIFLUSH rts */------------------------------------- * # FSeek * Set the file-position indicator for hFILE * ## C * `int fseek(hFILE stream, long offset, short int whence);` * ## ASM * **In:** * `>PUSHBI whence` * `>PUSHL offset` * `lda stream` * `>SYSCALL fseek` *\------------------------------------- K.FSeek jsr PFT.CheckNodeA jsr STDIO.GetRefNum >PULLA FROM tax >PULLW ZPPtr1 offset LW >PULLW ZPPtr2 offset HW cpx #SEEK.END+1 bcs .98 jmp (.1,x) .1 .DA .10 .DA .20 .DA .30 * SEEK.SET .10 stz K.MLI.PARAMS+2 stz K.MLI.PARAMS+3 stz K.MLI.PARAMS+4 bra .8 * SEEK.CUR .20 >MLICALL MLIGETMARK bcc .8 rts * SEEK.END .30 >MLICALL MLIGETEOF bcs .9 .8 ldy #0 ldx #3 3 bytes, 24 bits!!! clc .81 lda K.MLI.PARAMS+2,y adc ZPPtr1,y sta K.MLI.PARAMS+2,y iny dex bne .81 bcs .99 Offset out of range! .82 >MLICALL MLISETMARK bcc .9 cmp #MLI.E.BEYEOF bne .9 >MLICALL MLISETEOF bcc .82 .9 rts .98 lda #K.E.SYN .HS 2C bit abs .99 lda #K.E.FTB sec rts */-------------------------------------- * # FEOF * Test the end-of-file indicator for hFILE * **In:** * A = hFILE * **Out:** * CC : * A=0 EOF * A !=0 NOT EOF * CS : *\-------------------------------------- K.FEOF jsr PFT.CheckNodeA jsr STDIO.GetRefNum >MLICALL MLIGETMARK bcs .9 ldy #2 .1 lda K.MLI.PARAMS+2,y sta K.FEOF.MARK,y dey bpl .1 >MLICALL MLIGETEOF bcs .9 ldy #2 .2 lda K.MLI.PARAMS+2,y eor K.FEOF.MARK,y bne .8 dey bpl .2 .8 clc .9 rts K.FEOF.MARK .BS 3 */-------------------------------------- * # FTell * Return the current value of the file-position indicator * ## C * `long ftell(hFILE stream);` * ## ASM * **In:** * `lda stream` * `>SYSCALL ftell` * **Out:** * On stack (long) *\-------------------------------------- K.FTell jsr PFT.CheckNodeA jsr STDIO.GetRefNum >MLICALL MLIGETMARK bcs .9 lda #0 >PUSHA ldy #2 .1 lda K.MLI.PARAMS+2,y >PUSHA dey bpl .1 .9 rts */-------------------------------------- * # Remove *\-------------------------------------- K.Remove jsr PFT.CheckPathYA jsr STDIO.SetMLIPathYA >MLICALL MLIDESTROY rts */-------------------------------------- * # Rename * Rename a file * ## C * `int rename(const char *oldpath, const char *newpath);` * ## ASM * **In:** * `>PUSHW newpath` * `>LDYA oldpath` * `>SYSCALL rename` * **Out:** *\-------------------------------------- K.Rename jsr PFT.CheckPathYA jsr STDIO.SetMLIPathYA >PULLW .1+1 ldy #0 .1 lda $ffff,y Self Modified beq .8 iny sta K.Buf256,y cpy #MLI.MAXPATH bne .1 .8 sty K.Buf256 >LDYAI K.Buf256 >STYA K.MLI.PARAMS+3 >MLICALL MLIRENAME rts *-------------------------------------- STDIO.SetMLIPathYA >STYA .1+1 ldx #0 .1 lda $ffff,x Self Modified beq .8 inx sta K.MLI.PATH,x cpx #MLI.MAXPATH bne .1 .8 stx K.MLI.PATH inx stz K.MLI.PATH,x Make ending 0 for /dev/xxx path >LDYAI K.MLI.PATH >STYA K.MLI.PARAMS+1 rts *-------------------------------------- STDIO.SetIOBUF >LDYAI 1024 get a ProDOS IOBUF ldx #S.MEM.F.ALIGN+S.MEM.F.NOMOVE jsr MEM.GetMem.YAX bcs .9 >STYA K.MLI.PARAMS+3 Save Ptr to IOBUF for MLIOPEN call txa ldy #S.FD.REG.IOBUF sta (pFD),y .9 rts *-------------------------------------- STDIO.GetRefNum jsr K.GetMemPtr >STYA pFD ldy #S.FD.REG.REF lda (pFD),y sta K.MLI.PARAMS+1 rts *-------------------------------------- STDIO.IOERR lda #MLI.E.IO sec rts *-------------------------------------- MAN SAVE /A2OSX.SRC/SYS/KERNEL.S.STDIO LOAD /A2OSX.SRC/SYS/KERNEL.S ASM