2018-04-14 19:52:11 +00:00
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; 2018-04-13, Jede (jede@oric.org)
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;
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; void cputc (char c);
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;
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2019-07-06 08:16:57 +00:00
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.export _cputc, CHARCOLOR, CHARCOLOR_CHANGE, BGCOLOR, BGCOLOR_CHANGE
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2018-04-14 19:52:11 +00:00
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.include "telestrat.inc"
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.proc _cputc
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2019-07-06 08:16:57 +00:00
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ldx CHARCOLOR_CHANGE
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beq do_not_change_color_foreground
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2019-07-07 20:02:48 +00:00
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dec SCRX
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dec SCRX
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2019-07-06 08:16:57 +00:00
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pha
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lda CHARCOLOR
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2019-07-10 19:44:07 +00:00
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BRK_TELEMON XFWR ; Change color on the screen (foreground)
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2019-07-06 08:16:57 +00:00
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lda #$00
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sta CHARCOLOR_CHANGE
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2019-07-07 20:02:48 +00:00
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inc SCRX
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2019-07-06 08:16:57 +00:00
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pla
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do_not_change_color_foreground:
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ldx BGCOLOR_CHANGE
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beq do_not_change_color
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2019-07-07 20:02:48 +00:00
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dec SCRX ; Dec SCRX in order to place attribute before the right position
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2019-07-06 08:16:57 +00:00
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pha
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lda BGCOLOR
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ORA #%00010000 ; Add 16 because background color is an attribute between 16 and 23. 17 is red background for example
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BRK_TELEMON XFWR ; Change color on the screen (background)
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lda #$00
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sta BGCOLOR_CHANGE
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pla
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do_not_change_color:
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BRK_TELEMON XFWR ; Macro send char to screen (channel 0)
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2018-04-14 19:52:11 +00:00
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rts
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.endproc
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2019-07-07 20:02:48 +00:00
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.bss
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2019-07-06 08:16:57 +00:00
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CHARCOLOR:
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.res 1
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CHARCOLOR_CHANGE:
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.res 1
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BGCOLOR:
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.res 1
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BGCOLOR_CHANGE:
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.res 1
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