Slot Inst16b | 6 3 | 6 2 | 6 1 | 6 0 | 5 9 | 5 8 | 5 7 | 5 6 | 5 5 | 5 4 | 5 3 | 5 2 | 5 1 | 5 0 | 4 9 | 4 8 | 4 7 | 4 6 | 4 5 | 4 4 | 4 3 | 4 2 | 4 1 | 4 0 | 3 9 | 3 8 | 3 7 | 3 6 | 3 5 | 3 4 | 3 3 | 3 2 | 3 1 | 3 0 | 2 9 | 2 8 | 2 7 | 2 6 | 2 5 | 2 4 | 2 3 | 2 2 | 2 1 | 2 0 | 1 9 | 1 8 | 1 7 | 1 6 | 1 5 | 1 4 | 1 3 | 1 2 | 1 1 | 1 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Format x16b - 16 bit(s) | 1 | 1 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
BREAK.N | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
s | 3 | 2 | 1 | 0 |
BREAK.N 0..15
extern void XT_BREAK_N(immediate imms);
(please consult the Xtensa ® Instruction Set Architecture Reference Manual for any cross references and additional information)
BREAK.N
is similar in operation to BREAK
( BREAK 0..15, 0..15), except that it is encoded in a
16-bit format instead of 24 bits, there is only a 4-bit imm
field, and a different bit is set in D
EBUGCAUSE
. Use this instruction to set breakpoints on 16-bit instructions.
if PS.INTLEVEL < DEBUGLEVEL then EPC[DEBUGLEVEL] ← PC EPS[DEBUGLEVEL] ← PS DEBUGCAUSE ← 010000 nextPC ← InterruptVector[DEBUGLEVEL] PS.EXCM ← 1 PS.INTLEVEL ← DEBUGLEVEL endif
In | Out |
---|---|
PSEXCM Mstage , PSINTLEVEL Mstage
|