W90210F Winbond Electronics Corp America, W90210F Datasheet - Page 64

• Manufacturer Part Number: W90210F
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

Halfword Multiply
Format:
Purpose:
Description:The corresponding 16-bit halfwords of GR r1 and GR r2 are interpreted as signed or unsigned
Operation:
switch(cmplt) {
Exception:
Restriction:
05
0:5
6
case uhh (g=0, c=00, unsigned multiplication) {
case shh (g=1, c=00, signed multiplication) {
case uhl (g=0, c=01, unsigned multiplication) {
case shl (g=1, c=01, signed multiplication) {
case ulh (g=0, c=10, unsigned multiplication) {
case slh (g=1, c=10, signed multiplication) {
case ull (g=0, c=11, unsigned multiplication) {
case sll (g=1, c=11, signed multiplication) {
}
r2
6:10
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.
HMPY, cmplt
To multiply corresponding halfwords of two registers.
16-bit integers and are arithmetically multiplied together. The 32-bit result is placed in GR t.
The cmplt completer is specified by the g and the c bits in the instruction.
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
GR[t]{0..31}
break;
}
11:15
r1
5
None
Winbond defined instruction for W90210F.
c
2
g
1
-
2
zero_ext(GR[r1]{0..15})
sign_ext(GR[r1]{0..15})
zero_ext(GR[r1]{0..15})
sign_ext(GR[r1]{0..15})
zero_ext(GR[r1]{16:31})
sign_ext(GR[r1]{16:31})
zero_ext(GR[r1]{16:31})
sign_ext(GR[r1]{16:31})
r1,r2,t
12
21:25
5
26
1
1
27:31
t
5
64
zero_ext(GR[r2]{0..15})
sign_ext(GR[r2]{0..15})
zero_ext(GR[r2]{16:31})
sign_ext(GR[r2]{16:31}
zero_ext(GR[r2]{0..15})
sign_ext(GR[r2]{0..15})
zero_ext(GR[r2]{16:31})
sign_ext(GR[r2]{16:31})
W90210F
HMPY
Version 1.4, 10/8/97