diff options
| author | Anthony Green <green@redhat.com> | 2009-06-11 11:27:58 +0000 |
|---|---|---|
| committer | Anthony Green <green@redhat.com> | 2009-06-11 11:27:58 +0000 |
| commit | f865a31d1ed571ccb8d17653b150e3a30f22b30d (patch) | |
| tree | 53213b9fa3500e9762839a2a15d4447b6e7c04cc /opcodes | |
| parent | 1372b818548793632310cb702930171c849f62db (diff) | |
| download | gdb-f865a31d1ed571ccb8d17653b150e3a30f22b30d.zip gdb-f865a31d1ed571ccb8d17653b150e3a30f22b30d.tar.gz gdb-f865a31d1ed571ccb8d17653b150e3a30f22b30d.tar.bz2 | |
Add PC-relative branch instructions to moxie port.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 7 | ||||
| -rw-r--r-- | opcodes/moxie-dis.c | 9 | ||||
| -rw-r--r-- | opcodes/moxie-opc.c | 49 |
3 files changed, 44 insertions, 21 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 8333e32..1bb84a9 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,10 @@ +2009-06-11 Anthony Green <green@moxielogic.com> + + * moxie-opc.c (moxie_form1_opc_info): Remove branch instructions. + (moxie_form3_opc_info): Add branch instructions. + * moxie-dis.c (print_insn_moxie): Disassemble MOXIE_F3_PCREL + encoded instructions. + 2009-06-06 Anthony Green <green@moxielogic.com> * moxie-opc.c: Recode some MOXIE_F1_4 opcodes as MOXIE_F1_M. diff --git a/opcodes/moxie-dis.c b/opcodes/moxie-dis.c index d63eb2d..4e67e2c 100644 --- a/opcodes/moxie-dis.c +++ b/opcodes/moxie-dis.c @@ -33,6 +33,7 @@ static void *stream; /* Macros to extract operands from the instruction word. */ #define OP_A(i) ((i >> 4) & 0xf) #define OP_B(i) (i & 0xf) +#define INST2OFFSET(o) ((((signed short)((o & ((1<<10)-1))<<6))>>6)<<1) static const char * reg_names[16] = { "$fp", "$sp", "$r0", "$r1", "$r2", "$r3", "$r4", "$r5", @@ -176,11 +177,13 @@ print_insn_moxie (bfd_vma addr, struct disassemble_info * info) else { /* Extract the Form 3 opcode. */ - opcode = &moxie_form2_opc_info[(iword >> 12) & 3]; + opcode = &moxie_form3_opc_info[(iword >> 10) & 15]; switch (opcode->itype) { - case MOXIE_F3_NARG: - fpr (stream, "%s", opcode->name); + case MOXIE_F3_PCREL: + fpr (stream, "%s\t", opcode->name); + info->print_address_func ((bfd_vma) (addr + INST2OFFSET(iword)), + info); break; default: abort(); diff --git a/opcodes/moxie-opc.c b/opcodes/moxie-opc.c index 7275e3a..8194760 100644 --- a/opcodes/moxie-opc.c +++ b/opcodes/moxie-opc.c @@ -44,11 +44,11 @@ FORM 3 instructions start with a bits "11"... - 11oovvvvvvvvvvvv + 11oooovvvvvvvvvv 0 F - oo - form 3 opcode number - vvvvvvvvvvvv - 12-bit immediate value. */ + oooo - form 3 opcode number + vvvvvvvvvv - 10-bit immediate value. */ const moxie_opc_info_t moxie_form1_opc_info[64] = { @@ -67,16 +67,16 @@ const moxie_opc_info_t moxie_form1_opc_info[64] = { 0x0c, MOXIE_F1_ABi4, "ldo.l" }, { 0x0d, MOXIE_F1_AiB4, "sto.l" }, { 0x0e, MOXIE_F1_AB, "cmp" }, - { 0x0f, MOXIE_F1_M, "beq" }, - { 0x10, MOXIE_F1_M, "bne" }, - { 0x11, MOXIE_F1_M, "blt" }, - { 0x12, MOXIE_F1_M, "bgt" }, - { 0x13, MOXIE_F1_M, "bltu" }, - { 0x14, MOXIE_F1_M, "bgtu" }, - { 0x15, MOXIE_F1_M, "bge" }, - { 0x16, MOXIE_F1_M, "ble" }, - { 0x17, MOXIE_F1_M, "bgeu" }, - { 0x18, MOXIE_F1_M, "bleu" }, + { 0x0f, MOXIE_F1_NARG, "bad" }, + { 0x10, MOXIE_F1_NARG, "bad" }, + { 0x11, MOXIE_F1_NARG, "bad" }, + { 0x12, MOXIE_F1_NARG, "bad" }, + { 0x13, MOXIE_F1_NARG, "bad" }, + { 0x14, MOXIE_F1_NARG, "bad" }, + { 0x15, MOXIE_F1_NARG, "bad" }, + { 0x16, MOXIE_F1_NARG, "bad" }, + { 0x17, MOXIE_F1_NARG, "bad" }, + { 0x18, MOXIE_F1_NARG, "bad" }, { 0x19, MOXIE_F1_A, "jsr" }, { 0x1a, MOXIE_F1_M, "jmpa" }, { 0x1b, MOXIE_F1_A4, "ldi.b" }, @@ -126,11 +126,24 @@ const moxie_opc_info_t moxie_form2_opc_info[4] = { 0x03, MOXIE_F2_A8V, "ssr" } }; -const moxie_opc_info_t moxie_form3_opc_info[4] = +const moxie_opc_info_t moxie_form3_opc_info[16] = { - { 0x00, MOXIE_F2_NARG, "bad" }, - { 0x01, MOXIE_F2_NARG, "bad" }, - { 0x02, MOXIE_F2_NARG, "bad" }, - { 0x03, MOXIE_F2_NARG, "bad" } + { 0x00, MOXIE_F3_PCREL,"beq" }, + { 0x01, MOXIE_F3_PCREL,"bne" }, + { 0x02, MOXIE_F3_PCREL,"blt" }, + { 0x03, MOXIE_F3_PCREL,"bgt" }, + { 0x04, MOXIE_F3_PCREL,"bltu" }, + { 0x05, MOXIE_F3_PCREL,"bgtu" }, + { 0x06, MOXIE_F3_PCREL,"bge" }, + { 0x07, MOXIE_F3_PCREL,"ble" }, + { 0x08, MOXIE_F3_PCREL,"bgeu" }, + { 0x09, MOXIE_F3_PCREL,"bleu" }, + { 0x0a, MOXIE_F3_NARG, "bad" }, + { 0x0b, MOXIE_F3_NARG, "bad" }, + { 0x0c, MOXIE_F3_NARG, "bad" }, + { 0x0d, MOXIE_F3_NARG, "bad" }, + { 0x0e, MOXIE_F3_NARG, "bad" }, + { 0x0f, MOXIE_F3_NARG, "bad" } }; + |