Infineon TriCore TC1.6P - LD.B - Load Byte; LD.BU - Load Byte Unsigned

TriCore
®
TC1.6P & TC1.6E
32-bit Unified Processor Core
Instruction Set
V1.0 2013-07
User Manual (Volume 2) 3-153
LD.B
Load Byte
LD.BU
Load Byte Unsigned
Description
Load the byte contents of the memory location specified by the addressing mode, sign-extended or zero-extended,
into data register D[a].
LD.BD[a], off18 (ABS)(Absolute Addressing Mode)
EA = {off18[17:14], 14b'0, off18[13:0]};
D[a] = sign_ext(M(EA, byte));
LD.BD[a], A[b], off10 (BO)(Base + Short Offset Addressing Mode)
EA = A[b] + sign_ext(off10);
D[a] = sign_ext(M(EA, byte));
LD.BD[a], P[b] (BO)(Bit-reverse Addressing Mode)
index = zero_ext(A[b+1][15:0]);
incr = zero_ext(A[b+1][31:16]);
EA = A[b] + index;
D[a] = sign_ext(M(EA, byte));
new_index = reverse16(reverse16(index) + reverse16(incr));
A[b+1] = {incr[15:0], new_index[15:0]};
LD.BD[a], P[b], off10 (BO)(Circular Addressing Mode)
index = zero_ext(A[b+1][15:0]);
length = zero_ext(A[b+1][31:16]);
EA = A[b] + index;
D[a] = sign_ext(M(EA, byte));
Load the byte contents of the memory location specified by the addressing mode, zero-extended, into either data
register D[a] or D[15].
31
off18[9:6]
28 27
00
H
26 25
off18[13:10]
22 21
off18[5:0]
16 15
off18[17:14]
12 11
a
8 7
05
H
0
31
off10[9:6]
28 27
20
H
22 21
off10[5:0]
16 15
b
12 11
a
8 7
09
H
0
31
-
28 27
00
H
22 21
-
16 15
b
12 11
a
8 7
29
H
0
31
off10[9:6]
28 27
10
H
22 21
off10[5:0]
16 15
b
12 11
a
8 7
29
H
0