mirror of
https://github.com/michaelcmartin/Ophis.git
synced 2024-12-22 03:29:55 +00:00
257 lines
3.8 KiB
HTML
257 lines
3.8 KiB
HTML
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||
|
|
<HTML
|
||
|
|
><HEAD
|
||
|
|
><TITLE
|
||
|
|
>tutor7.oph</TITLE
|
||
|
|
><META
|
||
|
|
NAME="GENERATOR"
|
||
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
|
||
|
|
REL="HOME"
|
||
|
|
TITLE="Programming with Ophis"
|
||
|
|
HREF="book1.html"><LINK
|
||
|
|
REL="UP"
|
||
|
|
TITLE="Example Programs"
|
||
|
|
HREF="a454.html"><LINK
|
||
|
|
REL="PREVIOUS"
|
||
|
|
TITLE="c64-2.oph"
|
||
|
|
HREF="x497.html"><LINK
|
||
|
|
REL="NEXT"
|
||
|
|
TITLE="Ophis Command Reference"
|
||
|
|
HREF="a505.html"></HEAD
|
||
|
|
><BODY
|
||
|
|
CLASS="SECTION"
|
||
|
|
BGCOLOR="#FFFFFF"
|
||
|
|
TEXT="#000000"
|
||
|
|
LINK="#0000FF"
|
||
|
|
VLINK="#840084"
|
||
|
|
ALINK="#0000FF"
|
||
|
|
><DIV
|
||
|
|
CLASS="NAVHEADER"
|
||
|
|
><TABLE
|
||
|
|
SUMMARY="Header navigation table"
|
||
|
|
WIDTH="100%"
|
||
|
|
BORDER="0"
|
||
|
|
CELLPADDING="0"
|
||
|
|
CELLSPACING="0"
|
||
|
|
><TR
|
||
|
|
><TH
|
||
|
|
COLSPAN="3"
|
||
|
|
ALIGN="center"
|
||
|
|
>Programming with Ophis</TH
|
||
|
|
></TR
|
||
|
|
><TR
|
||
|
|
><TD
|
||
|
|
WIDTH="10%"
|
||
|
|
ALIGN="left"
|
||
|
|
VALIGN="bottom"
|
||
|
|
><A
|
||
|
|
HREF="x497.html"
|
||
|
|
ACCESSKEY="P"
|
||
|
|
><<< Previous</A
|
||
|
|
></TD
|
||
|
|
><TD
|
||
|
|
WIDTH="80%"
|
||
|
|
ALIGN="center"
|
||
|
|
VALIGN="bottom"
|
||
|
|
>Example Programs</TD
|
||
|
|
><TD
|
||
|
|
WIDTH="10%"
|
||
|
|
ALIGN="right"
|
||
|
|
VALIGN="bottom"
|
||
|
|
><A
|
||
|
|
HREF="a505.html"
|
||
|
|
ACCESSKEY="N"
|
||
|
|
>Next >>></A
|
||
|
|
></TD
|
||
|
|
></TR
|
||
|
|
></TABLE
|
||
|
|
><HR
|
||
|
|
ALIGN="LEFT"
|
||
|
|
WIDTH="100%"></DIV
|
||
|
|
><DIV
|
||
|
|
CLASS="SECTION"
|
||
|
|
><H1
|
||
|
|
CLASS="SECTION"
|
||
|
|
><A
|
||
|
|
NAME="TUTOR7-SRC"
|
||
|
|
><TT
|
||
|
|
CLASS="FILENAME"
|
||
|
|
>tutor7.oph</TT
|
||
|
|
></A
|
||
|
|
></H1
|
||
|
|
><TABLE
|
||
|
|
BORDER="0"
|
||
|
|
BGCOLOR="#E0E0E0"
|
||
|
|
WIDTH="100%"
|
||
|
|
><TR
|
||
|
|
><TD
|
||
|
|
><PRE
|
||
|
|
CLASS="PROGRAMLISTING"
|
||
|
|
>.include "c64-2.oph"
|
||
|
|
|
||
|
|
.data
|
||
|
|
.org $C000
|
||
|
|
.text
|
||
|
|
|
||
|
|
.macro print
|
||
|
|
lda #<_1
|
||
|
|
ldx #>_1
|
||
|
|
jsr printstr
|
||
|
|
.macend
|
||
|
|
|
||
|
|
.macro greet
|
||
|
|
lda #30
|
||
|
|
jsr delay
|
||
|
|
`print hello1
|
||
|
|
`print _1
|
||
|
|
`print hello2
|
||
|
|
.macend
|
||
|
|
|
||
|
|
lda #147
|
||
|
|
jsr chrout
|
||
|
|
`greet target1
|
||
|
|
`greet target2
|
||
|
|
`greet target3
|
||
|
|
`greet target4
|
||
|
|
`greet target5
|
||
|
|
`greet target6
|
||
|
|
`greet target7
|
||
|
|
`greet target8
|
||
|
|
`greet target9
|
||
|
|
`greet target10
|
||
|
|
|
||
|
|
rts
|
||
|
|
|
||
|
|
hello1: .byte "HELLO, ",0
|
||
|
|
hello2: .byte "!", 13, 0
|
||
|
|
|
||
|
|
target1: .byte "PROGRAMMER", 0
|
||
|
|
target2: .byte "ROOM", 0
|
||
|
|
target3: .byte "BUILDING", 0
|
||
|
|
target4: .byte "NEIGHBORHOOD", 0
|
||
|
|
target5: .byte "CITY", 0
|
||
|
|
target6: .byte "NATION", 0
|
||
|
|
target7: .byte "WORLD", 0
|
||
|
|
target8: .byte "SOLAR SYSTEM", 0
|
||
|
|
target9: .byte "GALAXY", 0
|
||
|
|
target10: .byte "UNIVERSE", 0
|
||
|
|
|
||
|
|
; DELAY routine. Takes values from the Accumulator and pauses
|
||
|
|
; for that many jiffies (1/60th of a second).
|
||
|
|
.scope
|
||
|
|
.data
|
||
|
|
.space _tmp 1
|
||
|
|
.space _target 1
|
||
|
|
|
||
|
|
.text
|
||
|
|
|
||
|
|
delay: sta _tmp ; save argument (rdtim destroys it)
|
||
|
|
jsr rdtim
|
||
|
|
clc
|
||
|
|
adc _tmp ; add current time to get target
|
||
|
|
sta _target
|
||
|
|
* jsr rdtim
|
||
|
|
cmp _target
|
||
|
|
bmi - ; Buzz until target reached
|
||
|
|
rts
|
||
|
|
.scend
|
||
|
|
|
||
|
|
; PRINTSTR routine. Accumulator stores the low byte of the address,
|
||
|
|
; X register stores the high byte. Destroys the values of $10 and
|
||
|
|
; $11.
|
||
|
|
|
||
|
|
.scope
|
||
|
|
.data zp
|
||
|
|
.space _ptr 2
|
||
|
|
.text
|
||
|
|
printstr:
|
||
|
|
sta _ptr
|
||
|
|
stx _ptr+1
|
||
|
|
ldy #$00
|
||
|
|
_lp: lda (_ptr),y
|
||
|
|
beq _done
|
||
|
|
jsr chrout
|
||
|
|
iny
|
||
|
|
bne _lp
|
||
|
|
_done: rts
|
||
|
|
.scend
|
||
|
|
|
||
|
|
.checkpc $A000
|
||
|
|
|
||
|
|
.data
|
||
|
|
.checkpc $D000
|
||
|
|
|
||
|
|
.data zp
|
||
|
|
.checkpc $80</PRE
|
||
|
|
></TD
|
||
|
|
></TR
|
||
|
|
></TABLE
|
||
|
|
></DIV
|
||
|
|
><DIV
|
||
|
|
CLASS="NAVFOOTER"
|
||
|
|
><HR
|
||
|
|
ALIGN="LEFT"
|
||
|
|
WIDTH="100%"><TABLE
|
||
|
|
SUMMARY="Footer navigation table"
|
||
|
|
WIDTH="100%"
|
||
|
|
BORDER="0"
|
||
|
|
CELLPADDING="0"
|
||
|
|
CELLSPACING="0"
|
||
|
|
><TR
|
||
|
|
><TD
|
||
|
|
WIDTH="33%"
|
||
|
|
ALIGN="left"
|
||
|
|
VALIGN="top"
|
||
|
|
><A
|
||
|
|
HREF="x497.html"
|
||
|
|
ACCESSKEY="P"
|
||
|
|
><<< Previous</A
|
||
|
|
></TD
|
||
|
|
><TD
|
||
|
|
WIDTH="34%"
|
||
|
|
ALIGN="center"
|
||
|
|
VALIGN="top"
|
||
|
|
><A
|
||
|
|
HREF="book1.html"
|
||
|
|
ACCESSKEY="H"
|
||
|
|
>Home</A
|
||
|
|
></TD
|
||
|
|
><TD
|
||
|
|
WIDTH="33%"
|
||
|
|
ALIGN="right"
|
||
|
|
VALIGN="top"
|
||
|
|
><A
|
||
|
|
HREF="a505.html"
|
||
|
|
ACCESSKEY="N"
|
||
|
|
>Next >>></A
|
||
|
|
></TD
|
||
|
|
></TR
|
||
|
|
><TR
|
||
|
|
><TD
|
||
|
|
WIDTH="33%"
|
||
|
|
ALIGN="left"
|
||
|
|
VALIGN="top"
|
||
|
|
><TT
|
||
|
|
CLASS="FILENAME"
|
||
|
|
>c64-2.oph</TT
|
||
|
|
></TD
|
||
|
|
><TD
|
||
|
|
WIDTH="34%"
|
||
|
|
ALIGN="center"
|
||
|
|
VALIGN="top"
|
||
|
|
><A
|
||
|
|
HREF="a454.html"
|
||
|
|
ACCESSKEY="U"
|
||
|
|
>Up</A
|
||
|
|
></TD
|
||
|
|
><TD
|
||
|
|
WIDTH="33%"
|
||
|
|
ALIGN="right"
|
||
|
|
VALIGN="top"
|
||
|
|
>Ophis Command Reference</TD
|
||
|
|
></TR
|
||
|
|
></TABLE
|
||
|
|
></DIV
|
||
|
|
></BODY
|
||
|
|
></HTML
|
||
|
|
>
|