diff options
| -rw-r--r-- | gdb/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/d10v-tdep.c | 15 |
2 files changed, 17 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 923f12f..73480eb 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,6 +1,8 @@ 2001-06-28 Jim Blandy <jimb@redhat.com> - * d10v-tdep.c (10v_frame_chain_valid, d10v_use_struct_convention, + * d10v-tdep.c (d10v_ts2_dmap_register): Doc fix. + + * d10v-tdep.c (d10v_frame_chain_valid, d10v_use_struct_convention, d10v_breakpoint_from_pc, d10v_register_byte, d10v_register_raw_size, d10v_register_virtual_size, d10v_register_virtual_type, d10v_register_convertible, diff --git a/gdb/d10v-tdep.c b/gdb/d10v-tdep.c index e41caaf..f3c0e6f 100644 --- a/gdb/d10v-tdep.c +++ b/gdb/d10v-tdep.c @@ -193,7 +193,20 @@ d10v_ts3_register_name (int reg_nr) return register_names[reg_nr]; } -/* Access the DMAP/IMAP registers in a target independent way. */ +/* Access the DMAP/IMAP registers in a target independent way. + + Divide the D10V's 64k data space into four 16k segments: + 0x0000 -- 0x3fff, 0x4000 -- 0x7fff, 0x8000 -- 0xbfff, and + 0xc000 -- 0xffff. + + On the TS2, the first two segments (0x0000 -- 0x3fff, 0x4000 -- + 0x7fff) always map to the on-chip data RAM, and the fourth always + maps to I/O space. The third (0x8000 - 0xbfff) can be mapped into + unified memory or instruction memory, under the control of the + single DMAP register. + + On the TS3, there are four DMAP registers, each of which controls + one of the segments. */ static unsigned long d10v_ts2_dmap_register (int reg_nr) |