📄 lcd1286418.lst
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6D7 24EE CLR R14
(0090) }
(0091) /* 3.计算首个判断因子 */
(0092) p = 2*dy -dx;
6D8 015B MOVW R10,R22
6D9 0CAA LSL R10
6DA 1CBB ROL R11
6DB 800C LDD R0,Y+4
6DC 801D LDD R1,Y+5
6DD 940E 1767 CALL 0x1767
(0093) /* 4a.以X方向增长画图 */
(0094) if(dx >= dy)
6DF F12C BLT 0x0705
(0095) {
(0096) for(temp=0; temp<dx; temp++)
6E0 2744 CLR R20
6E1 C01B RJMP 0x06FD
(0097) {
(0098) LcdDisplayDot(x,y,color); /* 画点 */
6E2 940E 1691 CALL 0x1691
6E4 DEED RCALL _LcdDisplayDot
6E5 940E 168C CALL 0x168C
(0099) if(p >= 0) /* 根据P来判断画哪一点 */
6E7 F074 BLT 0x06F6
(0100) {
(0101) x = x + signx;
6E8 800A LDD R0,Y+2
6E9 0C0C ADD R0,R12
6EA 820A STD Y+2,R0
(0102) y = y + signy;
6EB 800B LDD R0,Y+3
6EC 0C0E ADD R0,R14
6ED 820B STD Y+3,R0
(0103) p = p + 2*(dy - dx); /* dy,dx需要定义定义成有符号的,才能得到正确的值 */
6EE 011B MOVW R2,R22
6EF 800C LDD R0,Y+4
6F0 801D LDD R1,Y+5
6F1 1820 SUB R2,R0
6F2 0831 SBC R3,R1
6F3 940E 15A5 CALL 0x15A5
(0104) }
6F5 C006 RJMP 0x06FC
(0105) else
(0106) {
(0107) x = x + signx;
6F6 800A LDD R0,Y+2
6F7 0C0C ADD R0,R12
6F8 820A STD Y+2,R0
(0108) y = y;
(0109) p = p + 2*dy;
6F9 011B MOVW R2,R22
6FA 940E 15A5 CALL 0x15A5
6FC 9543 INC R20
6FD 2E24 MOV R2,R20
6FE 2433 CLR R3
6FF 800C LDD R0,Y+4
700 801D LDD R1,Y+5
701 1420 CP R2,R0
702 0431 CPC R3,R1
703 F2F4 BLT 0x06E2
(0110) }
(0111) }
(0112) }
704 C020 RJMP 0x0725
(0113) else
(0114) {
(0115) for(temp=0; temp<dy; temp++)
705 2744 CLR R20
706 C01B RJMP 0x0722
(0116) {
(0117) LcdDisplayDot(x,y,color); /* 画点 */
707 940E 1691 CALL 0x1691
709 DEC8 RCALL _LcdDisplayDot
70A 940E 168C CALL 0x168C
(0118) if(p >= 0) /* 根据P来判断画哪一点 */
70C F06C BLT 0x071A
(0119) {
(0120) y = y + signy;
70D 800B LDD R0,Y+3
70E 0C0E ADD R0,R14
70F 820B STD Y+3,R0
(0121) x = x + signx;
710 800A LDD R0,Y+2
711 0C0C ADD R0,R12
712 820A STD Y+2,R0
(0122) p = p + 2*(dx - dy);
713 802C LDD R2,Y+4
714 803D LDD R3,Y+5
715 1A26 SUB R2,R22
716 0A37 SBC R3,R23
717 940E 15A5 CALL 0x15A5
(0123) }
719 C007 RJMP 0x0721
(0124) else
(0125) {
(0126) y = y + signy;
71A 800B LDD R0,Y+3
71B 0C0E ADD R0,R14
71C 820B STD Y+3,R0
(0127) x = x;
(0128) p = p + 2*dx;
71D 802C LDD R2,Y+4
71E 803D LDD R3,Y+5
71F 940E 15A5 CALL 0x15A5
721 9543 INC R20
722 940E 172B CALL 0x172B
724 F314 BLT 0x0707
(0129) }
(0130) }
(0131) }
(0132) LcdDisplayDot(x2,y2,color); /* 画最后一个点 */
725 8C28 LDD R2,Y+24
726 2433 CLR R3
727 8239 STD Y+1,R3
728 8228 STD Y+0,R2
729 892E LDD R18,Y+22
72A 2733 CLR R19
72B 890C LDD R16,Y+20
72C 2711 CLR R17
72D DEA4 RCALL _LcdDisplayDot
72E 9626 ADIW R28,6
72F 940E 10B2 CALL pop_xgsetF0FC
731 9624 ADIW R28,4
732 9508 RET
733 940E 1771 CALL 0x1771
_GuiDrawCircle:
draw_x7 --> Y,+28
draw_x6 --> Y,+26
draw_y3 --> Y,+24
draw_y1 --> Y,+22
draw_x5 --> Y,+20
draw_x4 --> Y,+18
draw_y2 --> Y,+16
draw_y0 --> Y,+14
di --> R14
yy --> R22
draw_y7 --> R12
draw_y6 --> Y,+12
draw_x3 --> Y,+10
draw_x1 --> Y,+8
draw_y5 --> R10
draw_y4 --> Y,+6
draw_x2 --> Y,+4
draw_x0 --> Y,+2
xx --> R20
color --> Y,+42
r --> R22
y0 --> R10
x0 --> R12
735 976E SBIW R28,0x1E
736 A568 LDD R22,Y+40
(0133) }
(0134)
(0135) /*****************************************
(0136) * FUNCTION NAME: GuiDrawCircle
(0137) * DESCRIPTION: Draw Circle
(0138) * Based On "Breshenham Circle"
(0139) /*****************************************/
(0140) void GuiDrawCircle(unsigned char x0, unsigned char y0, unsigned char r, unsigned char color)
(0141) {
(0142) int draw_x0, draw_y0; /* 绘制图点坐标变量 */
(0143) int draw_x1, draw_y1;
(0144) int draw_x2, draw_y2;
(0145) int draw_x3, draw_y3;
(0146) int draw_x4, draw_y4;
(0147) int draw_x5, draw_y5;
(0148) int draw_x6, draw_y6;
(0149) int draw_x7, draw_y7;
(0150) int xx, yy; /* 画圆控制变量 */
(0151) int di; /* 决策变量 */
(0152) /* 参数过滤 */
(0153) if(r==0)
737 2366 TST R22
738 F409 BNE 0x073A
(0154) return;
739 C0FC RJMP 0x0836
(0155) /* 计算出8个特殊点(0、45、90、135、180、225、270度)，进行显示 */
(0156) draw_x0 = draw_x1 = x0;
73A 2C2C MOV R2,R12
73B 2433 CLR R3
73C 8639 STD Y+9,R3
73D 8628 STD Y+8,R2
73E 2433 CLR R3
73F 823B STD Y+3,R3
740 822A STD Y+2,R2
741 940E 1721 CALL 0x1721
(0157) draw_y0 = draw_y1 = y0 + r;
743 0C42 ADD R4,R2
744 1C53 ADC R5,R3
745 8A5F STD Y+23,R5
746 8A4E STD Y+22,R4
747 865F STD Y+15,R5
748 864E STD Y+14,R4
749 940E 14EE CALL 0x14EE
(0158) LcdDisplayDot(draw_x0, draw_y0, color); // 90度
74B 0192 MOVW R18,R4
74C 810A LDD R16,Y+2
74D 811B LDD R17,Y+3
74E DE83 RCALL _LcdDisplayDot
(0159) draw_x2 = draw_x3 = x0;
74F 2C2C MOV R2,R12
750 2433 CLR R3
751 863B STD Y+11,R3
752 862A STD Y+10,R2
753 2433 CLR R3
754 823D STD Y+5,R3
755 822C STD Y+4,R2
756 940E 1721 CALL 0x1721
(0160) draw_y2 = draw_y3 = y0 - r;
758 1842 SUB R4,R2
759 0853 SBC R5,R3
75A 8E59 STD Y+25,R5
75B 8E48 STD Y+24,R4
75C 8A59 STD Y+17,R5
75D 8A48 STD Y+16,R4
75E 940E 14EE CALL 0x14EE
(0161) LcdDisplayDot(draw_x2, draw_y2, color); // 270度
760 0192 MOVW R18,R4
761 810C LDD R16,Y+4
762 811D LDD R17,Y+5
763 DE6E RCALL _LcdDisplayDot
(0162) draw_x4 = draw_x6 = x0 + r;
764 2E26 MOV R2,R22
765 2433 CLR R3
766 2CEC MOV R14,R12
767 24FF CLR R15
768 0CE2 ADD R14,R2
769 1CF3 ADC R15,R3
76A 8EFB STD Y+27,R15
76B 8EEA STD Y+26,R14
76C 8AFB STD Y+19,R15
76D 8AEA STD Y+18,R14
(0163) draw_y4 = draw_y6 = y0;
76E 2C2A MOV R2,R10
76F 2433 CLR R3
770 863D STD Y+13,R3
771 862C STD Y+12,R2
772 2433 CLR R3
773 823F STD Y+7,R3
774 822E STD Y+6,R2
775 940E 14EE CALL 0x14EE
777 940E 1717 CALL 0x1717
(0164) LcdDisplayDot(draw_x4, draw_y4, color); // 0度
779 DE58 RCALL _LcdDisplayDot
(0165) draw_x5 = draw_x7 = x0 - r;
77A 2E26 MOV R2,R22
77B 2433 CLR R3
77C 2C4C MOV R4,R12
77D 2455 CLR R5
77E 1842 SUB R4,R2
77F 0853 SBC R5,R3
780 0162 MOVW R12,R4
781 8EDD STD Y+29,R13
782 8ECC STD Y+28,R12
783 8ADD STD Y+21,R13
784 8ACC STD Y+20,R12
(0166) draw_y5 = draw_y7 = y0;
785 2CCA MOV R12,R10
786 24DD CLR R13
787 24BB CLR R11
788 940E 14EE CALL 0x14EE
(0167) LcdDisplayDot(draw_x5, draw_y5, color); // 180度
78A 0195 MOVW R18,R10
78B 0182 MOVW R16,R4
78C DE45 RCALL _LcdDisplayDot
(0168) if(r==1)
78D 3061 CPI R22,1
78E F409 BNE 0x0790
(0169) return; // 若半径为1，则已圆画完
78F C0A6 RJMP 0x0836
(0170)
(0171) /* 使用Bresenham法进行画圆 */
(0172) di = 3 - 2*r; // 初始化决策变量
790 2E26 MOV R2,R22
791 2433 CLR R3
792 0C22 LSL R2
793 1C33 ROL R3
794 E083 LDI R24,3
795 E090 LDI R25,0
796 017C MOVW R14,R24
797 18E2 SUB R14,R2
798 08F3 SBC R15,R3
(0173) xx = 0;
799 2744 CLR R20
79A 2755 CLR R21
(0174) yy = r;
79B 2777 CLR R23
79C C095 RJMP 0x0832
(0175) while(xx<yy)
(0176) {
(0177) if(di<0)
79D 01C7 MOVW R24,R14
79E 3080 CPI R24,0
79F E0E0 LDI R30,0
7A0 079E CPC R25,R30
7A1 F43C BGE 0x07A9
(0178) {
(0179) di += 4*xx + 6;
7A2 01CA MOVW R24,R20
7A3 940E 1730 CALL 0x1730
7A5 9606 ADIW R24,6
7A6 0EE8 ADD R14,R24
7A7 1EF9 ADC R15,R25
(0180) }
7A8 C032 RJMP 0x07DB
(0181) else
(0182) {
(0183) di += 4*(xx - yy) + 10;
7A9 01CA MOVW R24,R20
7AA 1B86 SUB R24,R22
7AB 0B97 SBC R25,R23
7AC 940E 1730 CALL 0x1730
7AE 960A ADIW R24,0xA
7AF 0EE8 ADD R14,R24
7B0 1EF9 ADC R15,R25
(0184)
(0185) yy--;
7B1 5061 SUBI R22,1
7B2 4070 SBCI R23,0
(0186) draw_y0--;
7B3 858E LDD R24,Y+14
7B4 859F LDD R25,Y+15
7B5 9701 SBIW R24,1
7B6 879F STD Y+15,R25
7B7 878E STD Y+14,R24
(0187) draw_y1--;
7B8 898E LDD R24,Y+22
7B9 899F LDD R25,Y+23
7BA 9701 SBIW R24,1
7BB 8B9F STD Y+23,R25
7BC 8B8E STD Y+22,R24
(0188) draw_y2++;
7BD 8988 LDD R24,Y+16
7BE 8999 LDD R25,Y+17
7BF 9601 ADIW R24,1
7C0 8B99 STD Y+17,R25
7C1 8B88 STD Y+16,R24
(0189) draw_y3++;
7C2 8D88 LDD R24,Y+24
7C3 8D99 LDD R25,Y+25
7C4 9601 ADIW R24,1
7C5 8F99 STD Y+25,R25
7C6 8F88 STD Y+24,R24
(0190) draw_x4--;
7C7 898A LDD R24,Y+18
7C8 899B LDD R25,Y+19
7C9 9701 SBIW R24,1
7CA 8B9B STD Y+19,R25
7CB 8B8A STD Y+18,R24
(0191) draw_x5++;
7CC 898C LDD R24,Y+20
7CD 899D LDD R25,Y+21
7CE 9601 ADIW R24,1
7CF 8B9D STD Y+21,R25
7D0 8B8C STD Y+20,R24
(0192) draw_x6--;
7D1 8D8A LDD R24,Y+26
7D2 8D9B LDD R25,Y+27
7D3 9701 SBIW R24,1
7D4 8F9B STD Y+27,R25
7D5 8F8A STD Y+26,R24
(0193) draw_x7++;
7D6 8D8C LDD R24,Y+28
7D7 8D9D LDD R25,Y+29
7D8 9601 ADIW R24,1
7D9 8F9D STD Y+29,R25
7DA 8F8C STD Y+28,R24
(0194) }
(0195)
(0196) xx++;
7DB 5F4F SUBI R20,0xFF
7DC 4F5F SBCI R21,0xFF
7DD 940E 16F4 CALL 0x16F4
(0197) draw_x0++;
(0198) draw_x1--;
7DF 8588 LDD R24,Y+8
7E0 8599 LDD R25,Y+9
7E1 9701 SBIW R24,1
7E2 8799 STD Y+9,R25
7E3 8788 STD Y+8,R24
(0199) draw_x2++;
7E4 818C LDD R24,Y+4
7E5 819D LDD R25,Y+5
7E6 9601 ADIW R24,1
7E7 839D STD Y+5,R25
7E8 838C STD Y+4,R24
(0200) draw_x3--;
7E9 858A LDD R24,Y+10
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