diff options
| author | Dave Brolley <brolley@redhat.com> | 2003-10-31 18:23:47 +0000 |
|---|---|---|
| committer | Dave Brolley <brolley@redhat.com> | 2003-10-31 18:23:47 +0000 |
| commit | 9a29f3cae56f0b97155c400dcf6bc865882fbc79 (patch) | |
| tree | 03376148e0ccc30bbb1429e998fb84bc2d731517 /sim/frv/frv.c | |
| parent | 6066c3de513998f9c90c14385bf5e1b9ab626cc0 (diff) | |
| download | gdb-9a29f3cae56f0b97155c400dcf6bc865882fbc79.zip gdb-9a29f3cae56f0b97155c400dcf6bc865882fbc79.tar.gz gdb-9a29f3cae56f0b97155c400dcf6bc865882fbc79.tar.bz2 | |
2003-10-31 Dave Brolley <brolley@redhat.com>
* frv-sim.h (REGNUM_LR): Removed.
(REGNUM_SPR_MIN,REGNUM_SPR_MAX): New macros.
* frv.c (frvbf_fetch_register): Fetch SPR registers based on
REGNUM_SPR_MIN and REGNUM_SPR_MAX. Check whether SPRs are implemented.
Return 0 for an unimplemented register. Return the length of the data
for an implemented register.
(frvbf_store_register): Ditto.
Diffstat (limited to 'sim/frv/frv.c')
| -rw-r--r-- | sim/frv/frv.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/sim/frv/frv.c b/sim/frv/frv.c index 7f48256..cc71eca 100644 --- a/sim/frv/frv.c +++ b/sim/frv/frv.c @@ -44,12 +44,22 @@ frvbf_fetch_register (SIM_CPU *current_cpu, int rn, unsigned char *buf, int len) SETTSI (buf, GET_H_FR (rn - GR_REGNUM_MAX - 1)); else if (rn == PC_REGNUM) SETTSI (buf, GET_H_PC ()); - else if (rn == LR_REGNUM) - SETTSI (buf, GET_H_SPR (H_SPR_LR)); + else if (rn >= SPR_REGNUM_MIN && rn <= SPR_REGNUM_MAX) + { + /* Make sure the register is implemented. */ + FRV_REGISTER_CONTROL *control = CPU_REGISTER_CONTROL (current_cpu); + int spr = rn - SPR_REGNUM_MIN; + if (! control->spr[spr].implemented) + return 0; + SETTSI (buf, GET_H_SPR (spr)); + } else - SETTSI (buf, 0xdeadbeef); + { + SETTSI (buf, 0xdeadbeef); + return 0; + } - return -1; + return len; } /* The contents of BUF are in target byte order. */ @@ -63,10 +73,19 @@ frvbf_store_register (SIM_CPU *current_cpu, int rn, unsigned char *buf, int len) SET_H_FR (rn - GR_REGNUM_MAX - 1, GETTSI (buf)); else if (rn == PC_REGNUM) SET_H_PC (GETTSI (buf)); - else if (rn == LR_REGNUM) - SET_H_SPR (H_SPR_LR, GETTSI (buf)); + else if (rn >= SPR_REGNUM_MIN && rn <= SPR_REGNUM_MAX) + { + /* Make sure the register is implemented. */ + FRV_REGISTER_CONTROL *control = CPU_REGISTER_CONTROL (current_cpu); + int spr = rn - SPR_REGNUM_MIN; + if (! control->spr[spr].implemented) + return 0; + SET_H_SPR (spr, GETTSI (buf)); + } + else + return 0; - return -1; + return len; } /* Cover fns to access the general registers. */ |