Infineon TriCore TC1.6P - Loop

TriCore
®
TC1.6P & TC1.6E
32-bit Unified Processor Core
Instruction Set
V1.0 2013-07
User Manual (Volume 2) 3-175
LOOP
Loop
Description
If address register A[b] is not equal to zero, then add the value specified by disp15, multiplied by two and sign-
extended, to the contents of PC and jump to that address. The address register is decremented unconditionally.
LOOPA[b], disp15 (BRR)
if (A[b] != 0) then PC = PC + sign_ext(2 * disp15);
A[b] = A[b] - 1;
LOOPA[b], disp4 (SBR)
Status Flags
Examples
loop a4, iloop
See Also
JNED, JNEI, LOOPU
If address register A[b] is not equal to zero then add value specified by disp4, multiplied by two and one-extended
to a 32-bit negative number, to the contents of PC and jump to that address. The address register is decremented
unconditionally.
if (A[b] != 0) then PC = PC + {27b’111111111111111111111111111, disp4, 0};
A[b] = A[b] - 1;
C Not set by this instruction.
V Not set by this instruction.
SV Not set by this instruction.
AV Not set by this instruction.
SAV Not set by this instruction.
loop a4, iloop
31
00
H
30
disp15
16 15
b
12 11
-
8 7
FD
H
0
15
b
12 11
disp4
8 7
FC
H
0