diff options
Diffstat (limited to 'sim/d10v/interp.c')
| -rw-r--r-- | sim/d10v/interp.c | 95 |
1 files changed, 75 insertions, 20 deletions
diff --git a/sim/d10v/interp.c b/sim/d10v/interp.c index 4602ed2..bd16391 100644 --- a/sim/d10v/interp.c +++ b/sim/d10v/interp.c @@ -16,6 +16,11 @@ enum _leftright { LEFT_FIRST, RIGHT_FIRST }; static char *myname; static SIM_OPEN_KIND sim_kind; int d10v_debug; + +/* Set this to true to get the previous segment layout. */ + +int old_segment_mapping; + host_callback *d10v_callback; unsigned long ins_type_counters[ (int)INS_MAX ]; @@ -375,17 +380,53 @@ xfer_mem (SIM_ADDR addr, } #endif - /* to access data, we use the following mapping - 0x00xxxxxx: Logical data address segment (DMAP translated memory) - 0x01xxxxxx: Logical instruction address segment (IMAP translated memory) - 0x10xxxxxx: Physical data memory segment (On-chip data memory) - 0x11xxxxxx: Physical instruction memory segment (On-chip insn memory) - 0x12xxxxxx: Phisical unified memory segment (Unified memory) + /* To access data, we use the following mappings: + + 0x00xxxxxx: Physical unified memory segment (Unified memory) + 0x01xxxxxx: Physical instruction memory segment (On-chip insn memory) + 0x02xxxxxx: Physical data memory segment (On-chip data memory) + 0x10xxxxxx: Logical data address segment (DMAP translated memory) + 0x11xxxxxx: Logical instruction address segment (IMAP translated memory) + + Alternatively, the "old segment mapping" is still available by setting + old_segment_mapping to 1. It looks like this: + + 0x00xxxxxx: Logical data address segment (DMAP translated memory) + 0x01xxxxxx: Logical instruction address segment (IMAP translated memory) + 0x10xxxxxx: Physical data memory segment (On-chip data memory) + 0x11xxxxxx: Physical instruction memory segment (On-chip insn memory) + 0x12xxxxxx: Physical unified memory segment (Unified memory) + */ + /* However, if we've asked to use the previous generation of segment + mapping, rearrange the segments as follows. */ + + if (old_segment_mapping) + { + switch (segment) + { + case 0x00: /* DMAP translated memory */ + segment = 0x10; + break; + case 0x01: /* IMAP translated memory */ + segment = 0x11; + break; + case 0x10: /* On-chip data memory */ + segment = 0x02; + break; + case 0x11: /* On-chip insn memory */ + segment = 0x01; + break; + case 0x12: /* Unified memory */ + segment = 0x00; + break; + } + } + switch (segment) { - case 0x00: /* DMAP translated memory */ + case 0x10: /* DMAP translated memory */ { int byte; for (byte = 0; byte < size; byte++) @@ -401,7 +442,7 @@ xfer_mem (SIM_ADDR addr, return byte; } - case 0x01: /* IMAP translated memory */ + case 0x11: /* IMAP translated memory */ { int byte; for (byte = 0; byte < size; byte++) @@ -417,7 +458,7 @@ xfer_mem (SIM_ADDR addr, return byte; } - case 0x10: /* On-chip data memory */ + case 0x02: /* On-chip data memory */ { addr &= ((1 << DMEM_SIZE) - 1); if ((addr + size) > (1 << DMEM_SIZE)) @@ -430,7 +471,7 @@ xfer_mem (SIM_ADDR addr, break; } - case 0x11: /* On-chip insn memory */ + case 0x01: /* On-chip insn memory */ { addr &= ((1 << IMEM_SIZE) - 1); if ((addr + size) > (1 << IMEM_SIZE)) @@ -443,7 +484,7 @@ xfer_mem (SIM_ADDR addr, break; } - case 0x12: /* Unified memory */ + case 0x00: /* Unified memory */ { int startsegment, startoffset; /* Segment and offset within segment where xfer starts */ int endsegment, endoffset; /* Segment and offset within segment where xfer ends */ @@ -484,12 +525,23 @@ xfer_mem (SIM_ADDR addr, default: { (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: address 0x%lx is not in valid range\n", (long) addr); - (*d10v_callback->printf_filtered) (d10v_callback, "0x00xxxxxx: Logical data address segment (DMAP translated memory)\n"); - (*d10v_callback->printf_filtered) (d10v_callback, "0x01xxxxxx: Logical instruction address segment (IMAP translated memory)\n"); - (*d10v_callback->printf_filtered) (d10v_callback, "0x10xxxxxx: Physical data memory segment (On-chip data memory)\n"); - (*d10v_callback->printf_filtered) (d10v_callback, "0x11xxxxxx: Physical instruction memory segment (On-chip insn memory)\n"); - (*d10v_callback->printf_filtered) (d10v_callback, "0x12xxxxxx: Phisical unified memory segment (Unified memory)\n"); - return (0); + if (old_segment_mapping) + { + (*d10v_callback->printf_filtered) (d10v_callback, "0x00xxxxxx: Logical data address segment (DMAP translated memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x01xxxxxx: Logical instruction address segment (IMAP translated memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x10xxxxxx: Physical data memory segment (On-chip data memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x11xxxxxx: Physical instruction memory segment (On-chip insn memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x12xxxxxx: Phisical unified memory segment (Unified memory)\n"); + } + else + { + (*d10v_callback->printf_filtered) (d10v_callback, "0x00xxxxxx: Physical unified memory segment (Unified memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x01xxxxxx: Physical instruction memory segment (On-chip insn memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x02xxxxxx: Physical data memory segment (On-chip data memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x10xxxxxx: Logical data address segment (DMAP translated memory)\n"); + (*d10v_callback->printf_filtered) (d10v_callback, "0x11xxxxxx: Logical instruction address segment (IMAP translated memory)\n"); + } + return (0); } } @@ -544,14 +596,17 @@ sim_open (kind, callback, abfd, argv) sim_kind = kind; d10v_callback = callback; myname = argv[0]; + old_segment_mapping = 0; for (p = argv + 1; *p; ++p) { + if (strcmp (*p, "-oldseg") == 0) + old_segment_mapping = 1; #ifdef DEBUG - if (strcmp (*p, "-t") == 0) + else if (strcmp (*p, "-t") == 0) d10v_debug = DEBUG; - else #endif + else (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: unsupported option(s): %s\n",*p); } @@ -969,7 +1024,7 @@ sim_create_inferior (sd, abfd, argv, env) /* cpu resets imap0 to 0 and imap1 to 0x7f, but D10V-EVA board */ /* resets imap0 and imap1 to 0x1000. */ - if (1) + if (old_segment_mapping) { SET_IMAP0 (0x0000); SET_IMAP1 (0x007f); |