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32180 데이터시트(PDF) 49 Page - Renesas Technology Corp

부품명 32180
상세설명  32-Bit RISC Single-Chip Microcomputers M32R Family M32R/ECU Series
PDF  839 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

32180 데이터시트(HTML) 49 Page - Renesas Technology Corp

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2-12
32180 Group User’s Manual (Rev.1.0)
CPU
2.6 Data Formats
(5) Transfer from memory (signed) to registers
• Signed 32 bits
LD24 Rsrc, #label
LD
Rdest, @Rsrc
• Signed 16 bits
LD24 Rsrc, #label
LDH
Rdest, @Rsrc
• Signed 8 bits
LD24 Rsrc, #label
LDB
Rdest, @Rsrc
label
Rdest
b31
b0
+0
+1
+2
+3
Rdest
label
00
00
FF
FF
Determined by MSB
b31
b0
+0
+1
+2
+3
Rdest
label
00
00
00
FF
FF
FF
b31
b0
+0
+1
+2
+3
Determined by MSB
Memory
Register
0: Positive number
1: Negative number
0: Positive number
1: Negative number
• Unsigned 32 bits
LD24 Rsrc, #label
LD
Rdest, @Rsrc
• Unsigned 16 bits
LD24 Rsrc, #label
LDUB Rdest, @Rsrc
• Unsigned 8 bits
LD24 Rsrc, #label
LDUH Rdest, @Rsrc
Rdest
00
00
b31
b0
label
+0
+1
+2
+3
label
+0
+1
+2
+3
Rdest
b31
b0
label
+0
+1
+2
+3
Rdest
00
00
00
b31
b0
Memory
Register
Figure 2.6.7 Transfer from Memory (Signed) to Registers
(6) Transfer from memory (unsigned) to registers
Figure 2.6.8 Transfer from Memory (Unsigned) to Registers



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