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32172 Datasheet(PDF) 57 Page - Renesas Technology Corp

Part # 32172
Description  32-bit RISC Single-chip Microcomputers
PDF  875 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

32172 Datasheet(HTML) 57 Page - Renesas Technology Corp

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2
2-12
Rev.1.0
CPU
2.6 Data Formats
• 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
31
0
label
+0
+1
+2
+3
label
+0
+1
+2
+3
Rdest
31
0
label
+0
+1
+2
+3
Rdest
00
00
00
31
0
Memory
Register
• 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
31
0
+0
+1
+2
+3
Rdest
label
00
00
FF
FF
Check the MSB
0 = positive
1 = negative
31
0
+0
+1
+2
+3
Rdest
label
00
00
00
FF
FF
FF
31
0
+0
+1
+2
+3
Memory
Register
Check the MSB
0 = positive
1 = negative
(5) Memory (signed) to register transfer
Figure 2.6.7 Memory (signed) to register transfer
(6) Memory (unsigned) to register transfer
Figure 2.6.8 Memory (unsigned) to register transfer



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