Infineon TriCore TC1.6P - CACHEA.I - Cache Address, Invalidate

TriCore
®
TC1.6P & TC1.6E
32-bit Unified Processor Core
Instruction Set
V1.0 2013-07
User Manual (Volume 2) 3-47
CACHEA.I
Cache Address, Invalidate
Description
Note:This instruction can only be executed in Supervisor mode.
If the cache line containing the byte memory location specified by the addressing mode is present in the L1 data
cache, invalidate the line. Note that there is no writeback of any dirty data in the cache line prior to the invalidation.
If the cache line containing the byte memory location specified by the addressing mode is not present in the L1
data cache, then no operation should be performed in the L1 data cache. Specifically a refill of the line containing
the byte pointed to by the effective address should not be performed. Any address register updates associated
with the addressing mode are always performed regardless of the cache operation. The effective address is a
virtual address when operating in virtual mode.
CACHEA.IA[b], off10 (BO) (Base + Short Offset Addressing Mode)
EA = A[b] + sign_ext(off10);
cache_address_ivld(EA);
CACHEA.IP[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;
cache_address_ivld(EA);
new_index = reverse16(reverse16(index) + reverse16(incr));
A[b+1] = {incr[15:0],new_index[15:0]};
CACHEA.IP[b], off10 (BO) (Circular Addressing Mode)
index = zero_ext(A[b+1][15:0]);
length = zero_ext(A[b+1][31:16]);
EA0 = A[b] + index;
cache_address_ivld(EA);
new_index = index + sign_ext(off10);
new_index = new_index < 0 ? new_index + length : new_index % length;
A[b+1] = {length[15:0],new_index[15:0]};
CACHEA.IA[b], off10 (BO) (Post-increment Addressing Mode)
31
off10[9:6]
28 27
2E
H
22 21
off10[5:0]
16 15
b
12 11
-
8 7
89
H
0
31
-
28 27
0E
H
22 21
-
16 15
b
12 11
-
8 7
A9
H
0
31
off10[9:6]
28 27
1E
H
22 21
off10[5:0]
16 15
b
12 11
-
8 7
A9
H
0