W90210F Winbond Electronics Corp America, W90210F Datasheet - Page 66
![no-image](/images/no-image-200.jpg)
W90210F
Manufacturer Part Number
W90210F
Description
Pa-risc Embedded Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W90210F.pdf
(67 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
W90210F
Manufacturer:
WINBOND/华邦
Quantity:
20 000
- Current page: 66 of 67
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Load Halfword Unpacked
Format:
Purpose:
Description:
Operation:
Exception:
Restriction:
05
0:5
6
GR[t]
5:10
b
5
The above information is the exclusive intellectual property of Winbond Electronics Corp. and shall not be disclosed, distributed or reproduced without permission from Winbond.
cat(zero_ext(mem_load(offset,0,7),16), zero_ext(mem_load(offset,8,15),16))
im5
11:15
To load a halfword and unpack into a general register.
The aligned halfword at the effective address is uppacked into two bytes, zero-extended to
two halfwords and loaded into GR t. The completer, cmplt, determines if the offset is the
base register, b, or the base register plus the short displacement, d. The displacement is
encoded in the im5 field. The completer, encoded in the a and m fields of the instruction,
also specifies base register modification. If base register modification is specified and b=t,
the value loaded is the unpacked halfwords at the effective address.
switch (cmplt) {
}
None.
Winbond defined instruction for W90210F.
5
case MB:
case MA: offset
default:
LDHU, cmplt
2
s
a
1
-
3
offset
GR[b]
break;
GR[b]
break;
offset
break;
21:25
14
5
26
m
1
d(s,b),t
GR[b] + low_sign_ext(im5,5);
GR[b];
GR[b] + low_sign_ext(im5,5);
27:31
GR[b] + low_sign_ext(im5,5);
GR[b] + low_sign_ext(im5,5);
t
5
66
/* a=1,m=1 */
/* a=0,m=1 */
/* m=0 */
LDHU
W90210F
Version 1.4, 10/8/97
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