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📄 hc595.s

📁 ATMEGA128的SPI驱动程序
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12 
	.dbline -2
L19:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r data 20 i
	.dbend
	.dbfunc e Seg7_Led_float _Seg7_Led_float fV
;           temp -> R20,R21
;           data -> y+8
	.even
_Seg7_Led_float::
	xcall push_arg4
	xcall push_gset2
	sbiw R28,4
	.dbline -1
	.dbline 150
; }
; /*************************************************************************
; ** 函数名称:HC595显示浮点数据
; ** 功能描述:
; ** 输　入:
; ** 输出	 :
; ** 全局变量:
; ** 调用模块: 
; ** 说明：
; ** 注意：
; **************************************************************************/
; void Seg7_Led_float(float data)
; {
	.dbline 157
;  unsigned int temp;
;  /*
;  重要说明:data+=0.00001;其中0.00001为容错值
;  解决float数据类型在计算机内部存储的误差问题，可以解决显示问题
;  但是会引入新的计算误差，如果精度要求大于0.00001建议更改容错值或者将此处注释掉 
;  */
;  data+=0.00001;
	movw R30,R28
	ldd R2,z+8
	ldd R3,z+9
	ldd R4,z+10
	ldd R5,z+11
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L41
	ldi R17,>L41
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall add32f
	movw R30,R28
	std z+8,R16
	std z+9,R17
	std z+10,R18
	std z+11,R19
	.dbline 158
;  point=1;
	ldi R24,1
	sts _point,R24
	.dbline 159
;  if(data>999) //错误处理,超出显示范围则全亮
	ldi R16,<L44
	ldi R17,>L44
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	movw R30,R28
 ; stack offset 4
	ldd R2,z+12
	ldd R3,z+13
	ldd R4,z+14
	ldd R5,z+15
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	xcall cmp32f
	brge L42
	.dbline 160
;  	{
	.dbline 161
; 	 HC_595_OUT(0xFF);
	ldi R16,255
	xcall _HC_595_OUT
	.dbline 162
; 	 Seg7_Bitselect_PORT|=((1<<Seg7_Bit0)|(1<<Seg7_Bit1)|(1<<Seg7_Bit2)|(1<<Seg7_Bit3));
	in R24,0x18
	ori R24,240
	out 0x18,R24
	.dbline 163
; 	}
	xjmp L43
L42:
	.dbline 164
;  else if(data>99)
	ldi R16,<L47
	ldi R17,>L47
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	movw R30,R28
 ; stack offset 4
	ldd R2,z+12
	ldd R3,z+13
	ldd R4,z+14
	ldd R5,z+15
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	xcall cmp32f
	brlt X0
	xjmp L45
X0:
	.dbline 165
;  	{
	.dbline 166
; 	 temp=data*10;
	ldi R16,<L50
	ldi R17,>L50
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	movw R30,R28
 ; stack offset 4
	ldd R2,z+12
	ldd R3,z+13
	ldd R4,z+14
	ldd R5,z+15
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	xcall empy32f
	movw R30,R28
	std z+0,R16
	std z+1,R17
	std z+2,R18
	std z+3,R19
	movw R30,R28
	ldd R2,z+0
	ldd R3,z+1
	ldd R4,z+2
	ldd R5,z+3
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L51
	ldi R17,>L51
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall cmp32f
	brlt L48
	movw R30,R28
	ldd R2,z+0
	ldd R3,z+1
	ldd R4,z+2
	ldd R5,z+3
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L51
	ldi R17,>L51
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall sub32f
	xcall fp2int
	movw R22,R16
	subi R22,0  ; offset = 32768
	sbci R23,128
	xjmp L49
L48:
	movw R30,R28
	ldd R16,z+0
	ldd R17,z+1
	ldd R18,z+2
	ldd R19,z+3
	xcall fp2int
	movw R22,R16
L49:
	movw R20,R22
	.dbline 167
; 	 point_pos=1;
	ldi R24,1
	sts _point_pos,R24
	.dbline 168
; 	 Seg7_Led_Buf[3]=temp/1000;
	ldi R18,1000
	ldi R19,3
	movw R16,R20
	xcall div16u
	sts _Seg7_Led_Buf+3,R16
	.dbline 169
;  	 Seg7_Led_Buf[2]=(temp%1000)/100;
	ldi R18,1000
	ldi R19,3
	movw R16,R20
	xcall mod16u
	ldi R18,100
	ldi R19,0
	xcall div16u
	sts _Seg7_Led_Buf+2,R16
	.dbline 170
;  	 Seg7_Led_Buf[1]=(temp%100)/10;
	ldi R18,100
	ldi R19,0
	movw R16,R20
	xcall mod16u
	ldi R18,10
	ldi R19,0
	xcall div16u
	sts _Seg7_Led_Buf+1,R16
	.dbline 171
;  	 Seg7_Led_Buf[0]=temp%10;
	ldi R18,10
	ldi R19,0
	movw R16,R20
	xcall mod16u
	sts _Seg7_Led_Buf,R16
	.dbline 172
; 	 Seg7_Led_Update();
	xcall _Seg7_Led_Update
	.dbline 173
; 	}
	xjmp L46
L45:
	.dbline 174
;  else if(data>9)
	ldi R16,<L57
	ldi R17,>L57
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	movw R30,R28
 ; stack offset 4
	ldd R2,z+12
	ldd R3,z+13
	ldd R4,z+14
	ldd R5,z+15
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	xcall cmp32f
	brlt X1
	xjmp L55
X1:
	.dbline 175
;  	{
	.dbline 176
; 	 temp=data*100;
	ldi R16,<L60
	ldi R17,>L60
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	movw R30,R28
 ; stack offset 4
	ldd R2,z+12
	ldd R3,z+13
	ldd R4,z+14
	ldd R5,z+15
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	xcall empy32f
	movw R30,R28
	std z+0,R16
	std z+1,R17
	std z+2,R18
	std z+3,R19
	movw R30,R28
	ldd R2,z+0
	ldd R3,z+1
	ldd R4,z+2
	ldd R5,z+3
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L51
	ldi R17,>L51
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall cmp32f
	brlt L58
	movw R30,R28
	ldd R2,z+0
	ldd R3,z+1
	ldd R4,z+2
	ldd R5,z+3
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L51
	ldi R17,>L51
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall sub32f
	xcall fp2int
	movw R22,R16
	subi R22,0  ; offset = 32768
	sbci R23,128
	xjmp L59
L58:
	movw R30,R28
	ldd R16,z+0
	ldd R17,z+1
	ldd R18,z+2
	ldd R19,z+3
	xcall fp2int
	movw R22,R16
L59:
	movw R20,R22
	.dbline 177
; 	 point_pos=2;
	ldi R24,2
	sts _point_pos,R24
	.dbline 178
; 	 Seg7_Led_Buf[3]=temp/1000;
	ldi R18,1000
	ldi R19,3
	movw R16,R20
	xcall div16u
	sts _Seg7_Led_Buf+3,R16
	.dbline 179
;  	 Seg7_Led_Buf[2]=(temp%1000)/100;
	ldi R18,1000
	ldi R19,3
	movw R16,R20
	xcall mod16u
	ldi R18,100
	ldi R19,0
	xcall div16u
	sts _Seg7_Led_Buf+2,R16
	.dbline 180
;  	 Seg7_Led_Buf[1]=(temp%100)/10;
	ldi R18,100
	ldi R19,0
	movw R16,R20
	xcall mod16u
	ldi R18,10
	ldi R19,0
	xcall div16u
	sts _Seg7_Led_Buf+1,R16
	.dbline 181
;  	 Seg7_Led_Buf[0]=temp%10;
	ldi R18,10
	ldi R19,0
	movw R16,R20
	xcall mod16u
	sts _Seg7_Led_Buf,R16
	.dbline 182
; 	 Seg7_Led_Update();
	xcall _Seg7_Led_Update
	.dbline 183
; 	}
	xjmp L56
L55:
	.dbline 185
;  else
;  	{
	.dbline 186
; 	 temp=data*1000;
	ldi R16,<L66
	ldi R17,>L66
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	movw R30,R28
 ; stack offset 4
	ldd R2,z+12
	ldd R3,z+13
	ldd R4,z+14
	ldd R5,z+15
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	xcall empy32f
	movw R30,R28
	std z+0,R16
	std z+1,R17
	std z+2,R18
	std z+3,R19
	movw R30,R28
	ldd R2,z+0
	ldd R3,z+1
	ldd R4,z+2
	ldd R5,z+3
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L51
	ldi R17,>L51
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall cmp32f
	brlt L64
	movw R30,R28
	ldd R2,z+0
	ldd R3,z+1
	ldd R4,z+2
	ldd R5,z+3
	st -y,R5
	st -y,R4
	st -y,R3
	st -y,R2
	ldi R16,<L51
	ldi R17,>L51
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall sub32f
	xcall fp2int
	movw R22,R16
	subi R22,0  ; offset = 32768
	sbci R23,128
	xjmp L65
L64:
	movw R30,R28
	ldd R16,z+0
	ldd R17,z+1
	ldd R18,z+2
	ldd R19,z+3
	xcall fp2int
	movw R22,R16
L65:
	movw R20,R22
	.dbline 187
; 	 point_pos=3;
	ldi R24,3
	sts _point_pos,R24
	.dbline 188
; 	 Seg7_Led_Buf[3]=temp/1000;
	ldi R18,1000
	ldi R19,3
	movw R16,R20
	xcall div16u
	sts _Seg7_Led_Buf+3,R16
	.dbline 189
;  	 Seg7_Led_Buf[2]=(temp%1000)/100;
	ldi R18,1000
	ldi R19,3
	movw R16,R20
	xcall mod16u
	ldi R18,100
	ldi R19,0
	xcall div16u
	sts _Seg7_Led_Buf+2,R16
	.dbline 190
;  	 Seg7_Led_Buf[1]=(temp%100)/10;
	ldi R18,100
	ldi R19,0
	movw R16,R20
	xcall mod16u
	ldi R18,10
	ldi R19,0
	xcall div16u
	sts _Seg7_Led_Buf+1,R16
	.dbline 191
;  	 Seg7_Led_Buf[0]=temp%10;
	ldi R18,10
	ldi R19,0
	movw R16,R20
	xcall mod16u
	sts _Seg7_Led_Buf,R16
	.dbline 192
; 	 Seg7_Led_Update();
	xcall _Seg7_Led_Update
	.dbline 193
; 	}
L56:
L46:
L43:
	.dbline 194
;  point=0;
	clr R2
	sts _point,R2
	.dbline -2
L40:
	adiw R28,4
	xcall pop_gset2
	adiw R28,4
	.dbline 0 ; func end
	ret
	.dbsym r temp 20 i
	.dbsym l data 8 D
	.dbend
	.area bss(ram, con, rel)
	.dbfile D:\avrvi\AVRVi_m128_Starter_Kit\SPI\source\lib\hc595.c
_Seg7_Led_Buf::
	.blkb 4
	.dbsym e Seg7_Led_Buf _Seg7_Led_Buf A[4:4]c
	.area lit(rom, con, rel)
L66:
	.word 0x0,0x447a
L60:
	.word 0x0,0x42c8
L57:
	.word 0x0,0x4110
L51:
	.word 0x0,0x4700
L50:
	.word 0x0,0x4120
L47:
	.word 0x0,0x42c6
L44:
	.word 0xc000,0x4479
L41:
	.word 0xc5ac,0x3727
12

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