97 lines
1.1 KiB
ArmAsm
97 lines
1.1 KiB
ArmAsm
;
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;
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update_menu:
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lda BUTTON_LOCATION
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bne actually_update_menu
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rts
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actually_update_menu:
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ldx #7
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stx HGR_COLOR
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lda BUTTON_LOCATION
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jsr draw_button
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rts
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;========================
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;
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;========================
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erase_menu:
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lda BUTTON_LOCATION
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bne actually_erase_menu
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rts
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actually_erase_menu:
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ldx #0
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stx HGR_COLOR
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lda BUTTON_LOCATION
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jsr draw_button
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rts
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;====================
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; draw button
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;====================
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draw_button:
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; location is (1+BUTTON_LOCATION)*16
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; two hlins
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lda BUTTON_LOCATION
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clc
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adc #1
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asl
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asl
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asl
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asl
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tax
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sta button_smc1+1
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sta button_smc2+1
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sta button_smc3+1
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clc
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adc #15
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sta button_smc4+1
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; draw on both pages
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jsr actual_button_draw
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jsr hgr_hlin_page_toggle
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jsr hgr_vlin_page_toggle
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jsr actual_button_draw
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jsr hgr_hlin_page_toggle
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jsr hgr_vlin_page_toggle
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rts
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actual_button_draw:
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button_smc1:
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ldx #144
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lda #168
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ldy #15
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jsr hgr_hlin ; (x,a) to (x+y,a)
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button_smc2:
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ldx #144
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lda #191
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ldy #15
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jsr hgr_hlin ; (x,a) to (x+y,a)
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; two vlins
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button_smc3:
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ldx #144
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lda #168
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ldy #23
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jsr hgr_vlin ; (x,a) to (x,a+y)
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button_smc4:
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ldx #159
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lda #168
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ldy #23
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jsr hgr_vlin ; (x,a) to (x,a+y)
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rts
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