diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2011-12-14 02:13:40 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2012-02-18 14:55:51 +0400 |
| commit | ab58c5b4fd07fbe94950ff459ef51d43cfb5b8c8 (patch) | |
| tree | 654ef53b2c4e0892cd8fee7e07b398b8e3114217 | |
| parent | a044ec2a066a6002f83aba5ee937db17e7493fa8 (diff) | |
target-xtensa: add DEBUGCAUSE SR and configuration
DEBUGCAUSE SR holds information about the most recent debug exception.
See ISA, 4.7.7 for more details.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
| -rw-r--r-- | target-xtensa/cpu.h | 15 | ||||
| -rw-r--r-- | target-xtensa/translate.c | 6 |
2 files changed, 21 insertions, 0 deletions
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h index c32bf35a19..c77fe13dda 100644 --- a/target-xtensa/cpu.h +++ b/target-xtensa/cpu.h @@ -137,6 +137,7 @@ enum { PS = 230, VECBASE = 231, EXCCAUSE = 232, + DEBUGCAUSE = 233, CCOUNT = 234, PRID = 235, EXCVADDR = 238, @@ -161,6 +162,15 @@ enum { #define PS_WOE 0x40000 +#define DEBUGCAUSE_IC 0x1 +#define DEBUGCAUSE_IB 0x2 +#define DEBUGCAUSE_DB 0x4 +#define DEBUGCAUSE_BI 0x8 +#define DEBUGCAUSE_BN 0x10 +#define DEBUGCAUSE_DI 0x20 +#define DEBUGCAUSE_DBNUM 0xf00 +#define DEBUGCAUSE_DBNUM_SHIFT 8 + #define MAX_NAREG 64 #define MAX_NINTERRUPT 32 #define MAX_NLEVEL 6 @@ -279,6 +289,11 @@ typedef struct XtensaConfig { uint32_t timerint[MAX_NCCOMPARE]; unsigned nextint; unsigned extint[MAX_NINTERRUPT]; + + unsigned debug_level; + unsigned nibreak; + unsigned ndbreak; + uint32_t clock_freq_khz; xtensa_tlb itlb; diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index 6a0177f027..da5fdb5817 100644 --- a/target-xtensa/translate.c +++ b/target-xtensa/translate.c @@ -119,6 +119,7 @@ static const char * const sregnames[256] = { [PS] = "PS", [VECBASE] = "VECBASE", [EXCCAUSE] = "EXCCAUSE", + [DEBUGCAUSE] = "DEBUGCAUSE", [CCOUNT] = "CCOUNT", [PRID] = "PRID", [EXCVADDR] = "EXCVADDR", @@ -535,6 +536,10 @@ static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v) gen_jumpi_check_loop_end(dc, -1); } +static void gen_wsr_debugcause(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ +} + static void gen_wsr_prid(DisasContext *dc, uint32_t sr, TCGv_i32 v) { } @@ -571,6 +576,7 @@ static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) [INTCLEAR] = gen_wsr_intclear, [INTENABLE] = gen_wsr_intenable, [PS] = gen_wsr_ps, + [DEBUGCAUSE] = gen_wsr_debugcause, [PRID] = gen_wsr_prid, [CCOMPARE] = gen_wsr_ccompare, [CCOMPARE + 1] = gen_wsr_ccompare, |