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| author | Alan Modra <amodra@gmail.com> | 2019-12-11 16:45:14 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-11 21:14:19 +1030 |
| commit | 1d61b032265e69317f42e8019e072506f11890c5 (patch) | |
| tree | 226c023afd93046735bb928dc67d6490f8466e97 /opcodes/nios2-dis.c | |
| parent | 13c9c48599ebc8ad2f3a1fb9f672740219cd3841 (diff) | |
| download | gdb-1d61b032265e69317f42e8019e072506f11890c5.zip gdb-1d61b032265e69317f42e8019e072506f11890c5.tar.gz gdb-1d61b032265e69317f42e8019e072506f11890c5.tar.bz2 | |
Remove more shifts for sign/zero extension
cpu/
* epiphany.cpu (f-sdisp11): Don't sign extend with shifts.
* lm32.cpu (f-branch, f-vall): Likewise.
* m32.cpu (f-lab-8-16): Likewise.
opcodes/
* arc-dis.c (BITS): Don't truncate high bits with shifts.
* nios2-dis.c (nios2_print_insn_arg): Don't sign extend with shifts.
* tic54x-dis.c (print_instruction): Likewise.
* tilegx-opc.c (parse_insn_tilegx): Likewise.
* tilepro-opc.c (parse_insn_tilepro): Likewise.
* visium-dis.c (disassem_class0): Likewise.
* pdp11-dis.c (sign_extend): Likewise.
(SIGN_BITS): Delete.
* epiphany-ibld.c: Regenerate.
* lm32-ibld.c: Regenerate.
* m32c-ibld.c: Regenerate.
Diffstat (limited to 'opcodes/nios2-dis.c')
| -rw-r--r-- | opcodes/nios2-dis.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/opcodes/nios2-dis.c b/opcodes/nios2-dis.c index adf0091..731860c 100644 --- a/opcodes/nios2-dis.c +++ b/opcodes/nios2-dis.c @@ -554,10 +554,10 @@ nios2_print_insn_arg (const char *argptr, switch (op->format) { case iw_i_type: - s = (int32_t) (GET_IW_I_IMM16 (opcode) << 16) >> 16; + s = ((GET_IW_I_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000; break; case iw_F2I16_type: - s = (int32_t) (GET_IW_F2I16_IMM16 (opcode) << 16) >> 16; + s = ((GET_IW_F2I16_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000; break; default: bad_opcode (op); @@ -570,10 +570,10 @@ nios2_print_insn_arg (const char *argptr, switch (op->format) { case iw_F2X4I12_type: - s = (int32_t) (GET_IW_F2X4I12_IMM12 (opcode) << 20) >> 20; + s = ((GET_IW_F2X4I12_IMM12 (opcode) & 0xfff) ^ 0x800) - 0x800; break; case iw_F1X4I12_type: - s = (int32_t) (GET_IW_F1X4I12_IMM12 (opcode) << 20) >> 20; + s = ((GET_IW_F1X4I12_IMM12 (opcode) & 0xfff) ^ 0x800) - 0x800; break; default: bad_opcode (op); @@ -673,10 +673,10 @@ nios2_print_insn_arg (const char *argptr, switch (op->format) { case iw_i_type: - o = (int32_t) (GET_IW_I_IMM16 (opcode) << 16) >> 16; + o = ((GET_IW_I_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000; break; case iw_F2I16_type: - o = (int32_t) (GET_IW_F2I16_IMM16 (opcode) << 16) >> 16; + o = ((GET_IW_F2I16_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000; break; default: bad_opcode (op); @@ -690,7 +690,7 @@ nios2_print_insn_arg (const char *argptr, switch (op->format) { case iw_I10_type: - o = (int32_t) (GET_IW_I10_IMM10 (opcode) << 22) >> 21; + o = (((GET_IW_I10_IMM10 (opcode) & 0x3ff) ^ 0x400) - 0x400) << 1; break; default: bad_opcode (op); @@ -704,7 +704,7 @@ nios2_print_insn_arg (const char *argptr, switch (op->format) { case iw_T1I7_type: - o = (int32_t) (GET_IW_T1I7_IMM7 (opcode) << 25) >> 24; + o = (((GET_IW_T1I7_IMM7 (opcode) & 0x7f) ^ 0x40) - 0x40) << 1; break; default: bad_opcode (op); |