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gr: thinking: working!
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@ -21,7 +21,7 @@ XSAVE = $F9
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SAVED_YY= $F9
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YSAVE = $FA
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SAVED_XX= $FA
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ADJUSTED_YY = $FB
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thinking:
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@ -72,7 +72,7 @@ inc_pointer:
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stx XSAVE
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ldx BITMAP_PTR
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lda thinking_data-1-35,X
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lda thinking_data-1-30,X
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sta CURRENT_BITMAP
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ldx XSAVE
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@ -82,10 +82,10 @@ thinking_xloop:
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stx XSAVE ; save X (YY)
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sty YSAVE ; save Y (XX)
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; if YY <7 or YY > 14 then don't draw bitmap
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cpx #7
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; if YY <6 or YY > 13 then don't draw bitmap
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cpx #6
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bcc do_plot
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cpx #14
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cpx #13
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bcs do_plot
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handle_bitmap:
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@ -119,19 +119,30 @@ skip_plot:
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ldx SAVED_YY ; YY
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ldy SAVED_XX ; XX
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; if YY is < 10 do following, otherwise reverse
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cpx #10
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bcc counting_up
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counting_down:
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; now doing the reverse
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; cpy #30 ; is XX < 10
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; bcc color_adjust_up ; then potentially adjust UP
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; cpy #10 ; is XX > 30
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; bcs color_adjust_down ; then potentially adjust down
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; bcc color_adjust_none ; else, do nothing
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lda #19
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sec
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sbc SAVED_YY
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sta ADJUSTED_YY
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; YY now going from 10..0
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jmp detect_adjust_dir
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counting_up:
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lda SAVED_YY
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sta ADJUSTED_YY
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detect_adjust_dir:
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; if YY is < 10 do following, otherwise reverse
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; if XX is < 10, check for inc
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@ -150,7 +161,7 @@ color_adjust_up:
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; if XX < YY then inc color
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; if XX >= YY then do nothing
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cpy SAVED_YY ; compare XX to YY
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cpy ADJUSTED_YY ; compare XX to YY
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bcs col_same ; bge do nothing
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col_inc:
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@ -163,10 +174,10 @@ color_adjust_down:
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lda #39
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sec
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sbc XSAVE
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sta XSAVE
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sbc ADJUSTED_YY
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sta ADJUSTED_YY
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cpy XSAVE ; compare XX to YY
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cpy ADJUSTED_YY ; compare XX to YY
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; if XX > 39-YY then inc color
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bcc col_down_same
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@ -198,14 +209,14 @@ done_done:
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;=============================================
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; reverse the colors on bottom half of screen
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cpx #9
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beq blarch
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bcc blurgh
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dec COL
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jmp blarch
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blurgh:
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; cpx #10
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; beq blarch
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; bcc blurgh
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inc COL
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blarch:
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; jmp blarch
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;blurgh:
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; inc COL
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;blarch:
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;=======================
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@ -231,10 +242,10 @@ done_yloop:
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; increment color
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; after loop we are +10
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; so -1 actually means increment 1 (because we mod 8 it)
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inc COL
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; inc COL
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; inc COL
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dec COL
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dec COL
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; dec COL
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; dec COL
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