80 lines
1.6 KiB
ArmAsm
80 lines
1.6 KiB
ArmAsm
;;; -*- Mode: asm; indent-tabs-mode: t; tab-width: 8 -*-
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.scope line_test
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;; Program for testing of line-drawing. It draws a bunch of lines
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;;Start line-timer-here
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.include "line.inc"
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.include "../memory/mem.inc"
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Y_pos_ = $0D
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X_pos_ = $0E
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Y_end_ = $10
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X_end_ = $11
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LDA #$d2
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STA X_pos_
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LDA #$62
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STA Y_pos_
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LDA #$ff
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STA X_end
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LDA #$0
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STA Y_end
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;; Short test for timing
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@loop:
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LDA Y_pos_
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STA Y_pos
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LDA X_pos_
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STA X_pos
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jsr line
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INC Y_end
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LDA Y_end
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CMP #$aa
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BEQ end__
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jmp @loop
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end__:
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;; Full anfle test
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@loop:
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LDA Y_pos_
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STA Y_pos
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LDA X_pos_
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STA X_pos
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jsr line
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INC Y_end
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LDA Y_end
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CMP #$bb
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BEQ end
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jmp @loop
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end:
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;;Long lines
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;;Lets clear bitmap
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VIC_bank = $4000
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;;Paint the bitmap black. More bitmap: https://www.c64-wiki.com/wiki/53272, https://www.c64-wiki.com/wiki/Screen_RAM#Moving_of_screen_RAM
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Mov_16 A_start, A_start + 1, #<VIC_bank, #>VIC_bank
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Mov_16 length, length + 1, #<$1f40, #>$1f40
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LDA #$00
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jsr memset
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LDA #$00
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STA X_pos_
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LDA #$60
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STA Y_pos_
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LDA #$ff
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STA X_end
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LDA #$0
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STA Y_end
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@loop:
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LDA Y_pos_
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STA Y_pos
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LDA X_pos_
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STA X_pos
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jsr line
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INC Y_end
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LDA Y_end
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CMP #$bb
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BEQ end_
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jmp @loop
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end_:
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.endscope
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