mirror of
https://github.com/RevCurtisP/C02.git
synced 2024-11-22 01:31:33 +00:00
Added functions to module stdiox
This commit is contained in:
Curtis F Kaylor
parent
ca3723e2a9
commit
0ec3d860e2
@ -2,6 +2,7 @@ Standard Input/Output Functions for C02 Programs
|
||||
|
||||
At the beginning of the program use the directives
|
||||
|
||||
#include <stddef.h02>
|
||||
#include <stdio.h02>
|
||||
|
||||
The following functions are defined:
|
||||
|
||||
192
doc/stdiox.txt
192
doc/stdiox.txt
@ -5,116 +5,136 @@ At the beginning of the program use the directives
|
||||
#include <stddef.h02>
|
||||
#include <stdlib.h02>
|
||||
#include <stdiox.h02>
|
||||
|
||||
|
||||
The following functions are defined:
|
||||
|
||||
c = getprc(&s); Writes the string s, followed by a blank line,
|
||||
to the screen, then waits for a key to be pressed.
|
||||
c = getprc(&s); Writes the string s, waits for a key to be pressed.
|
||||
then writes blank line
|
||||
|
||||
Returns the ASCII value of the key that was
|
||||
pressed.
|
||||
Returns the ASCII value of the key that was
|
||||
pressed.
|
||||
|
||||
Note: Calls the puts function, the newlin
|
||||
function twice, then the getc function.
|
||||
Note: Calls the puts function, the newlin
|
||||
function twice, then the getc function.
|
||||
|
||||
c = getprc(&s); Writes the string "Press any key to continue...",
|
||||
followed by a blank line, to the screen, then waits
|
||||
for a key to be pressed.
|
||||
c = anykey(); Writes the string "Press any key to continue...",
|
||||
followed by a blank line, to the screen, then waits
|
||||
for a key to be pressed.
|
||||
|
||||
Returns the ASCII value of the key that was
|
||||
pressed.
|
||||
Returns the ASCII value of the key that was
|
||||
pressed.
|
||||
|
||||
Note: Calls the getprc function, with a hard
|
||||
coded string.
|
||||
Note: Calls the getprc function, with a hard
|
||||
coded string.
|
||||
|
||||
putdec(b); Writes the decimal representation of byte b to the
|
||||
screen. The output will be between one and three
|
||||
digits with no leading spaces.
|
||||
|
||||
Note: Calls part of the ctoa routine from stdlib
|
||||
which leaves the binary values of the ones, tens,
|
||||
and hundreds digits in variables temp0, temp1, and
|
||||
temp2, respectively.
|
||||
putspc(b); Writes a space character to the screen.
|
||||
|
||||
putdel(b); Writes the decimal representation of byte b to the
|
||||
screen. The output is left justified by appending it
|
||||
with 1 space if b is between 10 and 99, or two spaces
|
||||
if b is less than 10.
|
||||
|
||||
Note: Calls putdec and putspc. Leaves the value
|
||||
of b in varible temp3.
|
||||
Note: Used by the putdel and putder functions.
|
||||
|
||||
putder(b); Writes the decimal representation of byte b to the
|
||||
screen. The output is right justified by prepending it
|
||||
with 1 space if b is between 10 and 99, or two spaces
|
||||
if b is less than 10.
|
||||
|
||||
Note: Calls putdec and putspc. Leaves the value
|
||||
of b in varible temp3.
|
||||
putdec(b); Writes the decimal representation of byte b to the
|
||||
screen. The output will be between one and three
|
||||
digits with no leading spaces.
|
||||
|
||||
putdst(); Prints the destination string set by the setdst or
|
||||
setstr functions.
|
||||
|
||||
This can be used to print the results of any function
|
||||
call that stores it's result in the destination string,
|
||||
such as strcat, strcpy, and strcut in string,
|
||||
Note: Calls part of the ctoa routine from stdlib
|
||||
which leaves the binary values of the ones, tens,
|
||||
and hundreds digits in variables temp0, temp1, and
|
||||
temp2, respectively.
|
||||
|
||||
Note: calls putc and is called by printf when
|
||||
processing a %S formatting tag.
|
||||
|
||||
putspc(b); Writes a space character to the screen.
|
||||
putdel(b); Writes the decimal representation of byte b to the
|
||||
screen. The output is left justified by appending it
|
||||
with 1 space if b is between 10 and 99, or two spaces
|
||||
if b is less than 10.
|
||||
|
||||
Note: Used by the putdel and putder functions.
|
||||
Note: Calls putdec and putspc. Leaves the value
|
||||
of b in varible temp3.
|
||||
|
||||
r = printf(b, &s): Writes the value of byte b to screen, formatting
|
||||
the output according the contents of string s.
|
||||
|
||||
The output consists of the characters in s, but with
|
||||
any formatting tags replaced with an ASCII
|
||||
representation of the value of b.
|
||||
|
||||
The recognized formatting tags are:
|
||||
%C - output the ASCII character represented by b
|
||||
%D - output b as a an unjustified decimal number
|
||||
%H - output b as a two-digit hexadecimal number
|
||||
%L - output b as a left justified decimal number
|
||||
%R - output b as a right justified decimal number
|
||||
%% - output a single % character
|
||||
|
||||
Unlike the printf function in standard C, only
|
||||
one value argument may be passed and that value is
|
||||
used for each formatting tag in the format string.
|
||||
|
||||
One additional formatting tag is supported:
|
||||
%S - output the destination string
|
||||
|
||||
The destination string is set using the setdst or
|
||||
strdst functions (from the "string" library) before
|
||||
calling printf. Multiple occurances of the %S tag
|
||||
will cause the destination string to be repeated.
|
||||
|
||||
When tag types are mixed, the %S tag will output the
|
||||
destination string, while the other tags will output
|
||||
the formatted byte. If only the %S tag is used, then
|
||||
the byte argument may be excluded from the call.
|
||||
putder(b); Writes the decimal representation of byte b to the
|
||||
screen. The output is right justified by prepending it
|
||||
with 1 space if b is between 10 and 99, or two spaces
|
||||
if b is less than 10.
|
||||
|
||||
The letter in the formatting tag may be upper or
|
||||
lower case with either a 0 or 1 in the high bit.
|
||||
Unrecognized formatting tags are interpreted as %C.
|
||||
|
||||
Note: Calls putdec, putdel, putder, prbyte, or
|
||||
putdst depending on which formatting tags are used.
|
||||
The value of b is left in variable temp3.
|
||||
Note: Calls putdec and putspc. Leaves the value
|
||||
of b in varible temp3.
|
||||
|
||||
puthex(b); Writes the hexadecimal representation of byte b to the
|
||||
screen. The output is always two hex digits, the first
|
||||
being a leading 0 if b is less than 16.
|
||||
|
||||
Note: Aliased to the prbyte routine.
|
||||
|
||||
putwrd(&d); Writes the hexadecimal representation of address &d to
|
||||
the screen. The output is always four hex digits, with
|
||||
leading zeros if b is less than $1000.
|
||||
|
||||
Note: Calls savrxy, saving the X and Y registers to
|
||||
temp1 and temp2, respectively, then calls puthex, once
|
||||
for the most significant byte and again for the least
|
||||
significant byte.
|
||||
|
||||
putdst(); Prints the destination string set by the setdst or
|
||||
setstr functions.
|
||||
|
||||
This can be used to print the results of any function
|
||||
call that stores it's result in the destination string,
|
||||
such as strcat, strcpy, and strcut in string,
|
||||
|
||||
Note: calls putc and is called by printf when
|
||||
processing a %S formatting tag.
|
||||
|
||||
r = printf(b, &s): Writes the value of byte b to screen, formatting
|
||||
the output according the contents of string s.
|
||||
|
||||
The output consists of the characters in s, but with
|
||||
any formatting tags replaced with an ASCII
|
||||
representation of the value of b.
|
||||
|
||||
The recognized formatting tags are:
|
||||
%C - output the ASCII character represented by b
|
||||
%D - output b as a an unjustified decimal number
|
||||
%H - output b as a two-digit hexadecimal number
|
||||
%L - output b as a left justified decimal number
|
||||
%R - output b as a right justified decimal number
|
||||
%% - output a single % character
|
||||
|
||||
Unlike the printf function in standard C, only
|
||||
one value argument may be passed and that value is
|
||||
used for each formatting tag in the format string.
|
||||
|
||||
Two additional formatting tag are supported:
|
||||
%S - output the destination string
|
||||
%W - output the destination address as a
|
||||
as a four-digit hexadecimal number
|
||||
|
||||
The destination string and/or address is set using
|
||||
the setdst or strdst function (from the "string"
|
||||
library) before calling printf. Multiple occurances
|
||||
of the %S or %w tag will cause the destination string
|
||||
and/or address to be repeated.
|
||||
|
||||
When tag types are mixed, the %S and/or %W tags will
|
||||
output the destination string and/or address, while
|
||||
the other tags will output the formatted byte. If
|
||||
only the %S and/or %W tags are used, then the byte
|
||||
argument may be excluded from the call.
|
||||
|
||||
The letter in the formatting tag may be upper or
|
||||
lower case with either a 0 or 1 in the high bit.
|
||||
Unrecognized formatting tags are interpreted as %C.
|
||||
|
||||
Note: Calls putdec, putdel, putder, puthex, putwrd,
|
||||
or putdst depending on which formatting tags are
|
||||
used. The value of b is left in variable temp3.
|
||||
|
||||
Note: This library expects the following functions to be defined:
|
||||
|
||||
cubcd(); Convert byte to BCD and unpack into three bytes
|
||||
prbyte(); Print byte to screen as hexadecimal number
|
||||
prchr(c); Print ASCII character to screen
|
||||
savrxy(); Save X and Y registers.
|
||||
setsrc(&s); Set source string pointer and initialize index
|
||||
|
||||
along with the zero page variable pairs:
|
||||
|
||||
|
||||
srclo,srchi: Source string pointer
|
||||
|
||||
and the temporary variables
|
||||
|
||||
@ -2,42 +2,67 @@
|
||||
; Requires external routines GETKEY, PRCHR, DELCHR, NEWLIN, and SETSRC
|
||||
; external zero page locations SRCLO and SRCHI
|
||||
; and external constants DELKEY, ESCKEY, and RTNKEY
|
||||
;char getc()
|
||||
|
||||
;char getc() - GET Character from keyborad
|
||||
;Sets: System Dependent
|
||||
;Uses: System Dependent
|
||||
;Affects: System Dependent
|
||||
;Returns: A = Character Code of Key
|
||||
GETC EQU GETKEY ;Alias to external GETKEY routine
|
||||
|
||||
;void putc(c)
|
||||
;void putc(c) - PUT Character to screen
|
||||
;Args: Character code to display
|
||||
;Sets: System Dependent
|
||||
;Uses: System Dependent
|
||||
;Affects: System Dependent
|
||||
;Returns: System Dependent
|
||||
PUTC EQU PRCHR ;Alias to external PRCHR Routine
|
||||
|
||||
;char gets(&s)
|
||||
GETS: JSR SETSRC ;Initialize Source String
|
||||
GETSL: JSR GETC ;Get Keypress
|
||||
CMP #DELKEY ;If Delete
|
||||
BNE GETSE ;Then
|
||||
TYA ; If Offset is Zero
|
||||
BEQ GETSL ; Get Next Character
|
||||
DEY ; Else Decrement Offset
|
||||
JSR DELCHR ; Delete Previous Character
|
||||
JMP GETSL ; and Get Next Character
|
||||
GETSE: CMP #ESCKEY ;Else If Escape
|
||||
BNE GETSC ;Then
|
||||
LDY #$FF ; Return -1
|
||||
;char gets(&s) - GET String input from keyboard
|
||||
;Args: Y,X = Address of String
|
||||
;Sets: SRCLO,SRCLHI = Address of String
|
||||
;Affects: N,Z,C
|
||||
;Returns: A,Y = Number of Characters in String
|
||||
GETS: JSR SETSRC ;Initialize Source String
|
||||
GETSL: JSR GETC ;Get Keypress
|
||||
CMP #DELKEY ;If Delete
|
||||
BNE GETSE ;Then
|
||||
TYA ; If Offset is Zero
|
||||
BEQ GETSL ; Get Next Character
|
||||
DEY ; Else Decrement Offset
|
||||
JSR DELCHR ; Delete Previous Character
|
||||
JMP GETSL ; and Get Next Character
|
||||
GETSE: CMP #ESCKEY ;Else If Escape
|
||||
BNE GETSC ;Then
|
||||
LDY #$FF ; Return -1
|
||||
BNE GETSY
|
||||
GETSC: CMP #RTNKEY ;Else If Not Carriage Return
|
||||
GETSC: CMP #RTNKEY ;Else If Not Carriage Return
|
||||
BEQ GETSX
|
||||
JSR PUTC ; Echo Character
|
||||
STA (SRCLO),Y ; Store Character at offset
|
||||
INY ; increment offset and
|
||||
BPL GETSL ; loop if less than 128
|
||||
GETSX: JSR NEWLIN ;Else Advance Cursor to Next Line
|
||||
LDA #$00 ; Terminate String
|
||||
STA (SRCLO),Y ; and
|
||||
GETSY: TYA ; Return String Length
|
||||
JSR PUTC ; Echo Character
|
||||
STA (SRCLO),Y ; Store Character at offset
|
||||
INY ; increment offset and
|
||||
BPL GETSL ; loop if less than 128
|
||||
GETSX: JSR NEWLIN ;Else Advance Cursor to Next Line
|
||||
LDA #$00 ; Terminate String
|
||||
STA (SRCLO),Y ; and
|
||||
GETSY: TYA ; Return String Length
|
||||
RTS
|
||||
|
||||
;char puts(&s)
|
||||
;char puts(&s) - PUT String to screen
|
||||
;Args: Y,X = Address of String
|
||||
;Calls: PUTS
|
||||
;Affects: N,Z,C
|
||||
;Returns: A,Y = Number of Characters in String
|
||||
PUTS: LDA #$00 ;Set Start Position to 0
|
||||
;and fall into putsub
|
||||
;char putsub(n, &s)
|
||||
|
||||
;char putsub(n, &s) - PUT SUBstring to screen
|
||||
;Args: A = Starting Position in String
|
||||
; Y,X = Address of String
|
||||
;Sets: SRCLO,SRCLHI = Address of String
|
||||
;Calls: PUTC
|
||||
;Affects: N,Z,C
|
||||
;Returns: A,Y = Number of Characters in String
|
||||
PUTSUB: JSR SETSRC ;Initialize Source String
|
||||
TAY ;Initialize character offset
|
||||
PUTSUL: LDA (SRCLO),Y ;Read next character in string
|
||||
@ -48,6 +73,8 @@ PUTSUL: LDA (SRCLO),Y ;Read next character in string
|
||||
PUTSUX: TYA ;Return number of
|
||||
RTS ; characters printed
|
||||
|
||||
;char putln(&s)
|
||||
;char putln(&s) - PUT LiNe to screen
|
||||
;Args: Y,X = Address of String
|
||||
;Calls: PUTS and NEWLIN
|
||||
PUTLN: JSR PUTS ;Write string to screen
|
||||
JMP NEWLIN ;Execute external NEWLINe routine and return
|
||||
|
||||
@ -2,18 +2,33 @@
|
||||
|
||||
ANYKEP: DC "Press any key to continue...",0
|
||||
|
||||
;
|
||||
;char anykey() - wait for character with ANY KEY prompt
|
||||
;Calls: GETCPR, NEWLIN - Print Newline to Screen
|
||||
;Affects: C,N,Z
|
||||
;Returns: A = Character code of keypress
|
||||
ANYKEY: JSR NEWLIN ;Start at Beginning of Next Line
|
||||
LDY #>ANYKEP ;Load Prompt High Byte
|
||||
LDX #<ANYKEP ;Load Prompt Low Byte
|
||||
LDY #>ANYKEP ;Load Prompt High Byte
|
||||
LDX #<ANYKEP ;Load Prompt Low Byte
|
||||
;Drop into GETCPR
|
||||
|
||||
;Display Prompt and Wait for Character
|
||||
GETCPR: JSR PUTLN ;Print Prompt
|
||||
;char getcpr(&s) - GET Character with PRompt
|
||||
;Args: Y,X = Address of Prompt String
|
||||
;Sets: TEMP0 - Character code of keypress
|
||||
;Calls: PUTS - Put String to Screen
|
||||
; GETC - Get Character from Keyboard
|
||||
; NEWLIN - Print Newline to Screen
|
||||
;Affects: C,N,Z
|
||||
;Returns: A = Character code of keypress
|
||||
GETCPR: JSR PUTS ;Print Prompt
|
||||
JSR GETC ;Wait for and Return Keypress
|
||||
STA TEMP0 ;Save Key Code
|
||||
JSR NEWLIN ;Move to Next Line
|
||||
JSR NEWLIN ;Generate Blank Line
|
||||
JMP GETC ;Wait for and Return Keypress
|
||||
LDA TEMP0 ;Load Key Code
|
||||
RTS
|
||||
|
||||
;Print Byte as Left Justified Decimal Number
|
||||
;void putdel(b)
|
||||
;void putdel(b) - PUT DEcimal Left justified
|
||||
;Args: A = number to print
|
||||
;Sets: TEMP0 - ones digit
|
||||
; TEMP1 - tens digit
|
||||
@ -33,8 +48,7 @@ PUTDET: CMP #10 ; If Number < 10
|
||||
JSR PUTSPC ; Print another Space
|
||||
PUTDEX: RTS
|
||||
|
||||
;Print Byte as Right Justified Decimal Number
|
||||
;void putder(b)
|
||||
;void putder(b) - PUT DEcimal Right justified
|
||||
;Args: A = number to print
|
||||
;Sets: TEMP0 - ones digit
|
||||
; TEMP1 - tens digit
|
||||
@ -44,8 +58,7 @@ PUTDER: STA TEMP3
|
||||
PUTDES: JSR PUTDEH
|
||||
LDA TEMP3
|
||||
|
||||
;Print Byte as Decimal Number
|
||||
;void putdec(b)
|
||||
;void putdec(b) - PUT DECimal
|
||||
;Args: A = number to print
|
||||
;Sets: TEMP0 - ones digit
|
||||
; TEMP1 - tens digit
|
||||
@ -64,15 +77,34 @@ PUTDEP: ORA #$30 ;Convert to ASCII digit
|
||||
JSR PRCHR ;And Print
|
||||
RTS
|
||||
|
||||
;puthex(&word) - PUT HEXadecimal
|
||||
PUTHEX EQU PRBYTE ;Print Byte as Hexadecimal
|
||||
|
||||
;putwrd(&word) - PUT WoRD
|
||||
;Args: Y = Word MSB
|
||||
; X = Word LSB
|
||||
;Calls: PUTS = Put String
|
||||
; PRBYTE = Print Byte
|
||||
; SAVRXY = Save X and Y Registers
|
||||
;Affects: A,Y,X,N,Z,C
|
||||
PUTWRD: JSR SAVRXY ;Save Address
|
||||
PUTWRA: LDA TEMP2 ;Load Address MSB
|
||||
JSR PRBYTE ;Print as Hexadecimal
|
||||
LDA TEMP1 ;Load Address LSB
|
||||
JMP PRBYTE ;Print and Return`
|
||||
|
||||
;Print a Space
|
||||
PUTSPC: LDA #32 ;Load Space Character
|
||||
JMP PRCHR ;and Print it
|
||||
|
||||
;Print Byte in Formatted String
|
||||
;void printf(b, &s)
|
||||
;Args: A = number to format
|
||||
;void printf(b, &s) - PRINT Formatted byte and/or string
|
||||
;Args: A = byte to format
|
||||
; Y,X = address of formatting string
|
||||
;Sets: TEMP3 - number to format
|
||||
;Uses: DSTLO,DSTHI = Address of %S string
|
||||
;Sets: SRCLO,SRCHI = Address of formatting string
|
||||
; TEMP3 - number to format
|
||||
;Destroys: TEMP0,TEMP1,TEMP2
|
||||
;Returns: A,Y = Total number of characters printed
|
||||
PRINTF: JSR SETSRC ;Initialize Source String
|
||||
STA TEMP3 ;Save Byte to Format
|
||||
PRINTL: LDA (SRCLO),Y ;Read next character in string
|
||||
@ -108,14 +140,21 @@ PRINTD: CMP #'D ;'Else If "d" or "D"
|
||||
PRINTH: CMP #'H ;'Else If "h" or "H"
|
||||
BNE PRINTS
|
||||
LDA TEMP3 ; Load Byte to Format
|
||||
JSR PRBYTE ; Print as Hexadecimal
|
||||
JSR PUTHEX ; Print as Hexadecimal
|
||||
JMP PRINTY ; and Continue Printing Screen
|
||||
PRINTS: CMP #'S ;'Else If "s" or "s"
|
||||
BNE PRINTB
|
||||
PRINTS: CMP #'S ;'Else If "s" or "S"
|
||||
BNE PRINTW
|
||||
STY TEMP0 ; Save Index
|
||||
JSR PUTDST ; Print Destination String
|
||||
LDY TEMP0 ; Restore Index
|
||||
JMP PRINTY ;
|
||||
PRINTW: CMP #'W ;'Else If "w" or "W"
|
||||
BNE PRINTB
|
||||
STY TEMP0 ; Save Index
|
||||
JSR SAVDST ; Save Destination Address
|
||||
JSR PUTWRA ; Print MSB and LSB as Hex
|
||||
LDY TEMP0 ; Restore Index
|
||||
JMP PRINTY ;
|
||||
PRINTB: LDA TEMP3 ;Else
|
||||
JMP PRINTC ; Print Raw Byte and Continue
|
||||
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
#include <stdio.h02>
|
||||
#include <stdiox.h02>
|
||||
|
||||
char c, i;
|
||||
char c, i, j;
|
||||
char s = "string";
|
||||
|
||||
main:
|
||||
@ -44,17 +44,43 @@ do {
|
||||
} while (i);
|
||||
anykey();
|
||||
|
||||
putln("prthex()");
|
||||
do {
|
||||
if (i<32) printf(" H='%h' R='%r' L='%l' D='%d'");
|
||||
else printf("C='%c' H='%h' R='%r' L='%l' D='%d'");
|
||||
newlin();
|
||||
puthex(i);
|
||||
putc(':');
|
||||
i++;
|
||||
if (!i&15) anykey();
|
||||
if (!i&15) newlin();
|
||||
} while (i);
|
||||
anykey();
|
||||
|
||||
putln("prtwrd()");
|
||||
do {
|
||||
j = i ^ $FF;
|
||||
putwrd(*,i,j);
|
||||
putc(':');
|
||||
i++;
|
||||
if (!i&15) newlin();
|
||||
} while (i);
|
||||
anykey();
|
||||
|
||||
do {
|
||||
pfchar(i); putc($09); pfchar(i+16); newlin();
|
||||
i++; if (!i&15) {i = i + 16; anykey(); }
|
||||
} while (i<128);
|
||||
|
||||
setdst(&s);
|
||||
printf("S=\"%s\"");
|
||||
newlin();
|
||||
|
||||
setdst(&$1234);
|
||||
printf("&$1234=%w");
|
||||
newlin();
|
||||
|
||||
done:
|
||||
goto exit;
|
||||
|
||||
void pfchar(c) {
|
||||
if (c<32) printf(c," H='%h' R='%r' L='%l' D='%d'");
|
||||
else printf(c,"C='%c' H='%h' R='%r' L='%l' D='%d'");
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user