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https://github.com/espressif/binutils-gdb.git
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* mips.h: Assign 'm'/'M' codes to MIPS16e save/restore
instructions. Define MIPS16_ALL_ARGS and MIPS16_ALL_STATICS for
save/restore encoding of the args field.
* mips16-opc.c: Add MIPS16e save/restore opcodes.
* mips-dis.c (print_mips16_insn_arg): Handle printing of 'm'/'M'
codes for save/restore.
* config/tc-mips.c (mips16_ip): Add handling of 'm' and 'M' codes
for the MIPS16e save/restore instructions.
* gas/mips/mips.exp: Run new save/restore tests.
* gas/testsuite/gas/mips/mips16e-save.s: New test for generating
different styles of save/restore instructions.
* gas/testsuite/gas/mips/mips16e-save.d: New.
This commit is contained in:
Thiemo Seufer
@ -1,3 +1,8 @@
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2005-11-14 David Ung <davidu@mips.com>
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* config/tc-mips.c (mips16_ip): Add handling of 'm' and 'M' codes
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for the MIPS16e save/restore instructions.
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2005-11-11 Jan Beulich <jbeulich@novell.com>
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2005-11-11 Jan Beulich <jbeulich@novell.com>
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* doc/Makefile.am: Make asconfig.texi writeable before trying
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* doc/Makefile.am: Make asconfig.texi writeable before trying
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@ -9303,6 +9303,8 @@ do_msbd:
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}
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}
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}
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}
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#define SKIP_SPACE_TABS(S) { while (*(S) == ' ' || *(S) == '\t') ++(S); }
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/* This routine assembles an instruction into its binary format when
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/* This routine assembles an instruction into its binary format when
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assembling for the mips16. As a side effect, it sets one of the
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assembling for the mips16. As a side effect, it sets one of the
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global variables imm_reloc or offset_reloc to the type of
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global variables imm_reloc or offset_reloc to the type of
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@ -9836,6 +9838,184 @@ mips16_ip (char *str, struct mips_cl_insn *ip)
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}
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}
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continue;
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continue;
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case 'm': /* Register list for save insn. */
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case 'M': /* Register list for restore insn. */
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{
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int opcode = 0;
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int framesz = 0, seen_framesz = 0;
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int args = 0, statics = 0, sregs = 0;
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while (*s != '\0')
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{
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unsigned int reg1, reg2;
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SKIP_SPACE_TABS (s);
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while (*s == ',')
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++s;
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SKIP_SPACE_TABS (s);
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my_getExpression (&imm_expr, s);
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if (imm_expr.X_op == O_constant)
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{
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/* Handle the frame size. */
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if (seen_framesz)
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{
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as_bad (_("more than one frame size in list"));
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break;
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}
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seen_framesz = 1;
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framesz = imm_expr.X_add_number;
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imm_expr.X_op = O_absent;
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s = expr_end;
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continue;
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}
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if (*s != '$')
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{
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as_bad (_("can't parse register list"));
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break;
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}
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++s;
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reg1 = 0;
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while (ISDIGIT (*s))
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{
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reg1 *= 10;
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reg1 += *s - '0';
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++s;
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}
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SKIP_SPACE_TABS (s);
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if (*s != '-')
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reg2 = reg1;
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else
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{
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++s;
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if (*s != '$')
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{
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as_bad (_("can't parse register list"));
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break;
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}
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++s;
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reg2 = 0;
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while (ISDIGIT (*s))
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{
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reg2 *= 10;
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reg2 += *s - '0';
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++s;
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}
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}
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while (reg1 <= reg2)
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{
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if (reg1 >= 4 && reg1 <= 7)
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{
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if (c == 'm' && !seen_framesz)
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/* args $a0-$a3 */
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args |= 1 << (reg1 - 4);
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else
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/* statics $a0-$a3 */
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statics |= 1 << (reg1 - 4);
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}
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else if ((reg1 >= 16 && reg1 <= 23) || reg1 == 30)
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{
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/* $s0-$s8 */
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sregs |= 1 << ((reg1 == 30) ? 8 : (reg1 - 16));
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}
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else if (reg1 == 31)
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{
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/* Add $ra to insn. */
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opcode |= 0x40;
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}
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else
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{
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as_bad (_("unexpected register in list"));
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break;
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}
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if (++reg1 == 24)
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reg1 = 30;
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}
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}
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/* Encode args/statics combination. */
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if (args & statics)
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as_bad (_("arg/static registers overlap"));
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else if (args == 0xf)
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/* All $a0-$a3 are args. */
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opcode |= MIPS16_ALL_ARGS << 16;
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else if (statics == 0xf)
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/* All $a0-$a3 are statics. */
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opcode |= MIPS16_ALL_STATICS << 16;
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else
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{
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int narg = 0, nstat = 0;
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/* Count arg registers. */
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while (args & 0x1)
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{
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args >>= 1;
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narg++;
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}
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if (args != 0)
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as_bad (_("invalid arg register list"));
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/* Count static registers. */
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while (statics & 0x8)
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{
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statics = (statics << 1) & 0xf;
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nstat++;
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}
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if (statics != 0)
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as_bad (_("invalid static register list"));
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/* Encode args/statics. */
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opcode |= ((narg << 2) | nstat) << 16;
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}
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/* Encode $s0/$s1. */
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if (sregs & (1 << 0)) /* $s0 */
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opcode |= 0x20;
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if (sregs & (1 << 1)) /* $s1 */
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opcode |= 0x10;
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sregs >>= 2;
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if (sregs != 0)
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{
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/* Count regs $s2-$s8. */
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int nsreg = 0;
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while (sregs & 1)
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{
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sregs >>= 1;
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nsreg++;
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}
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if (sregs != 0)
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as_bad (_("invalid static register list"));
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/* Encode $s2-$s8. */
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opcode |= nsreg << 24;
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}
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/* Encode frame size. */
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if (!seen_framesz)
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as_bad (_("missing frame size"));
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else if ((framesz & 7) != 0 || framesz < 0
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|| framesz > 0xff * 8)
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as_bad (_("invalid frame size"));
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else if (framesz != 128 || (opcode >> 16) != 0)
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{
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framesz /= 8;
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opcode |= (((framesz & 0xf0) << 16)
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| (framesz & 0x0f));
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}
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/* Finally build the instruction. */
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if ((opcode >> 16) != 0 || framesz == 0)
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{
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ip->use_extend = TRUE;
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ip->extend = opcode >> 16;
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}
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ip->insn_opcode |= opcode & 0x7f;
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}
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continue;
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case 'e': /* extend code */
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case 'e': /* extend code */
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my_getExpression (&imm_expr, s);
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my_getExpression (&imm_expr, s);
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check_absolute_expr (ip, &imm_expr);
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check_absolute_expr (ip, &imm_expr);
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@ -1,3 +1,10 @@
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|
2005-11-14 David Ung <davidu@mips.com>
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* gas/mips/mips.exp: Run new save/restore tests.
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|
* gas/testsuite/gas/mips/mips16e-save.s: New test for generating
|
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|
different styles of save/restore instructions.
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* gas/testsuite/gas/mips/mips16e-save.d: New.
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|
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2005-11-10 Jan Beulich <jbeulich@novell.com>
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2005-11-10 Jan Beulich <jbeulich@novell.com>
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|
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* gas/i386/intelbad.d: Add tests for ill registers in brackets.
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* gas/i386/intelbad.d: Add tests for ill registers in brackets.
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@ -771,5 +771,8 @@ if { [istarget mips*-*-*] } then {
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run_dump_test "mips16-dwarf2-n32"
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run_dump_test "mips16-dwarf2-n32"
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}
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}
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}
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}
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if { !$no_mips16 } { run_dump_test "mips16e-jrc" }
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if { !$no_mips16 } {
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run_dump_test "mips16e-jrc"
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run_dump_test "mips16e-save"
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|
}
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}
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}
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43
gas/testsuite/gas/mips/mips16e-save.d
Normal file
43
gas/testsuite/gas/mips/mips16e-save.d
Normal file
@ -0,0 +1,43 @@
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#objdump: -dr -mmips:isa32 -mmips:16
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#as: -march=mips32 -mips16
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#name: mips16e save/restore
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.*: +file format .*mips.*
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Disassembly of section .text:
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|
00000000 <func>:
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|
0:[ ]+6481[ ]+save[ ]+8
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2:[ ]+64c2[ ]+save[ ]+16,ra
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|
4:[ ]+64a3[ ]+save[ ]+24,s0
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|
6:[ ]+6494[ ]+save[ ]+32,s1
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|
8:[ ]+64b5[ ]+save[ ]+40,s0-s1
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|
a:[ ]+64e6[ ]+save[ ]+48,ra,s0
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|
c:[ ]+64d7[ ]+save[ ]+56,ra,s1
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|
e:[ ]+64f8[ ]+save[ ]+64,ra,s0-s1
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|
10:[ ]+64f9[ ]+save[ ]+72,ra,s0-s1
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|
12:[ ]+64fa[ ]+save[ ]+80,ra,s0-s1
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|
14:[ ]+64fb[ ]+save[ ]+88,ra,s0-s1
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|
16:[ ]+64f0[ ]+save[ ]+128,ra,s0-s1
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|
18:[ ]+f010 6481[ ]+save[ ]+136
|
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|
1c:[ ]+f010 64c2[ ]+save[ ]+144,ra
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||||||
|
20:[ ]+f010 64b3[ ]+save[ ]+152,s0-s1
|
||||||
|
24:[ ]+f100 6488[ ]+save[ ]+64,s2
|
||||||
|
28:[ ]+f600 6489[ ]+save[ ]+72,s2-s7
|
||||||
|
2c:[ ]+f700 648a[ ]+save[ ]+80,s2-s8
|
||||||
|
30:[ ]+f700 64bb[ ]+save[ ]+88,s0-s8
|
||||||
|
34:[ ]+f001 6488[ ]+save[ ]+64,a3
|
||||||
|
38:[ ]+f012 6480[ ]+save[ ]+128,a2-a3
|
||||||
|
3c:[ ]+f02b 6480[ ]+save[ ]+256,a0-a3
|
||||||
|
40:[ ]+f024 6480[ ]+save[ ]+a0,256
|
||||||
|
44:[ ]+f018 6480[ ]+save[ ]+a0-a1,128
|
||||||
|
48:[ ]+f00e 6488[ ]+save[ ]+a0-a3,64
|
||||||
|
4c:[ ]+f015 6480[ ]+save[ ]+a0,128,a3
|
||||||
|
50:[ ]+f017 6480[ ]+save[ ]+a0,128,a1-a3
|
||||||
|
54:[ ]+f01a 6480[ ]+save[ ]+a0-a1,128,a2-a3
|
||||||
|
58:[ ]+f01d 6480[ ]+save[ ]+a0-a2,128,a3
|
||||||
|
5c:[ ]+f71a 64f0[ ]+save[ ]+a0-a1,128,ra,s0-s8,a2-a3
|
||||||
|
60:[ ]+6470[ ]+restore[ ]+128,ra,s0-s1
|
||||||
|
62:[ ]+f010 6441[ ]+restore[ ]+136,ra
|
||||||
|
66:[ ]+f100 6408[ ]+restore[ ]+64,s2
|
||||||
|
6a:[ ]+f71b 6470[ ]+restore[ ]+128,ra,s0-s8,a0-a3
|
||||||
|
6e:[ ]+6500[ ]+nop
|
||||||
55
gas/testsuite/gas/mips/mips16e-save.s
Normal file
55
gas/testsuite/gas/mips/mips16e-save.s
Normal file
@ -0,0 +1,55 @@
|
|||||||
|
# Test the generation of the mips16e save instruction
|
||||||
|
|
||||||
|
.set mips16
|
||||||
|
.text
|
||||||
|
func:
|
||||||
|
# Un-extended version
|
||||||
|
save 8
|
||||||
|
save $31,16
|
||||||
|
save $16,24
|
||||||
|
save $17,32
|
||||||
|
save $16-$17,40
|
||||||
|
save $31,$16,48
|
||||||
|
save $31,$17,56
|
||||||
|
save $31,$16,$17,64
|
||||||
|
save $31,$16-$17,72
|
||||||
|
save 80,$31,$16-$17
|
||||||
|
save $31,88,$16,$17
|
||||||
|
save $31,$17,128,$16
|
||||||
|
|
||||||
|
# Extended version
|
||||||
|
save 136
|
||||||
|
save $31,144
|
||||||
|
save $16-$17,152
|
||||||
|
|
||||||
|
# sreg
|
||||||
|
save $18,64
|
||||||
|
save $18-$23,72
|
||||||
|
save $18-$23,$30,80
|
||||||
|
save $16-$23,$30,88
|
||||||
|
|
||||||
|
# static areg
|
||||||
|
save 64,$7
|
||||||
|
save 128,$7,$6
|
||||||
|
save 256,$7,$6,$5,$4
|
||||||
|
|
||||||
|
# areg
|
||||||
|
save $4,256
|
||||||
|
save $4,$5,128
|
||||||
|
save $4,$5,$6,$7,64
|
||||||
|
|
||||||
|
# mix areg and static areg
|
||||||
|
save $4,128,$7
|
||||||
|
save $4,128,$7,$6,$5
|
||||||
|
save $4,$5,128,$7,$6
|
||||||
|
save $4,$5,$6,128,$7
|
||||||
|
|
||||||
|
save $4-$5,$16-$23,$30-$31,128,$6-$7
|
||||||
|
|
||||||
|
restore $16,$17,$31,128
|
||||||
|
restore $31,136
|
||||||
|
restore $18,64
|
||||||
|
restore $4-$5,$16-$23,$30-$31,128,$6-$7
|
||||||
|
|
||||||
|
.p2align 4
|
||||||
|
|
||||||
@ -1,3 +1,9 @@
|
|||||||
|
2005-11-14 David Ung <davidu@mips.com>
|
||||||
|
|
||||||
|
* mips.h: Assign 'm'/'M' codes to MIPS16e save/restore
|
||||||
|
instructions. Define MIPS16_ALL_ARGS and MIPS16_ALL_STATICS for
|
||||||
|
save/restore encoding of the args field.
|
||||||
|
|
||||||
2005-10-28 Dave Brolley <brolley@redhat.com>
|
2005-10-28 Dave Brolley <brolley@redhat.com>
|
||||||
|
|
||||||
Contribute the following changes:
|
Contribute the following changes:
|
||||||
|
|||||||
@ -928,7 +928,14 @@ extern int bfd_mips_num_opcodes;
|
|||||||
"A" 8 bit PC relative address * 4 (MIPS16OP_*_IMM8)
|
"A" 8 bit PC relative address * 4 (MIPS16OP_*_IMM8)
|
||||||
"B" 5 bit PC relative address * 8 (MIPS16OP_*_IMM5)
|
"B" 5 bit PC relative address * 8 (MIPS16OP_*_IMM5)
|
||||||
"E" 5 bit PC relative address * 4 (MIPS16OP_*_IMM5)
|
"E" 5 bit PC relative address * 4 (MIPS16OP_*_IMM5)
|
||||||
*/
|
"m" 7 bit register list for save instruction (18 bit extended)
|
||||||
|
"M" 7 bit register list for restore instruction (18 bit extended)
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Save/restore encoding for the args field when all 4 registers are
|
||||||
|
either saved as arguments or saved/restored as statics. */
|
||||||
|
#define MIPS16_ALL_ARGS 0xe
|
||||||
|
#define MIPS16_ALL_STATICS 0xb
|
||||||
|
|
||||||
/* For the mips16, we use the same opcode table format and a few of
|
/* For the mips16, we use the same opcode table format and a few of
|
||||||
the same flags. However, most of the flags are different. */
|
the same flags. However, most of the flags are different. */
|
||||||
|
|||||||
@ -1,3 +1,9 @@
|
|||||||
|
2005-11-14 David Ung <davidu@mips.com>
|
||||||
|
|
||||||
|
* mips16-opc.c: Add MIPS16e save/restore opcodes.
|
||||||
|
* mips-dis.c (print_mips16_insn_arg): Handle printing of 'm'/'M'
|
||||||
|
codes for save/restore.
|
||||||
|
|
||||||
2005-11-10 Andreas Schwab <schwab@suse.de>
|
2005-11-10 Andreas Schwab <schwab@suse.de>
|
||||||
|
|
||||||
* m68k-dis.c (print_insn_m68k): Only match FPU insns with
|
* m68k-dis.c (print_insn_m68k): Only match FPU insns with
|
||||||
|
|||||||
@ -1656,6 +1656,92 @@ print_mips16_insn_arg (char type,
|
|||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
|
case 'm':
|
||||||
|
case 'M':
|
||||||
|
/* MIPS16e save/restore. */
|
||||||
|
{
|
||||||
|
int need_comma = 0;
|
||||||
|
int amask, args, statics;
|
||||||
|
int nsreg, smask;
|
||||||
|
int framesz;
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
l = l & 0x7f;
|
||||||
|
if (use_extend)
|
||||||
|
l |= extend << 16;
|
||||||
|
|
||||||
|
amask = (l >> 16) & 0xf;
|
||||||
|
if (amask == MIPS16_ALL_ARGS)
|
||||||
|
{
|
||||||
|
args = 4;
|
||||||
|
statics = 0;
|
||||||
|
}
|
||||||
|
else if (amask == MIPS16_ALL_STATICS)
|
||||||
|
{
|
||||||
|
args = 0;
|
||||||
|
statics = 4;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
args = amask >> 2;
|
||||||
|
statics = amask & 3;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (args > 0) {
|
||||||
|
(*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
|
||||||
|
if (args > 1)
|
||||||
|
(*info->fprintf_func) (info->stream, "-%s",
|
||||||
|
mips_gpr_names[4 + args - 1]);
|
||||||
|
need_comma = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
framesz = (((l >> 16) & 0xf0) | (l & 0x0f)) * 8;
|
||||||
|
if (framesz == 0 && !use_extend)
|
||||||
|
framesz = 128;
|
||||||
|
|
||||||
|
(*info->fprintf_func) (info->stream, "%s%d",
|
||||||
|
need_comma ? "," : "",
|
||||||
|
framesz);
|
||||||
|
|
||||||
|
if (l & 0x40) /* $ra */
|
||||||
|
(*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[31]);
|
||||||
|
|
||||||
|
nsreg = (l >> 24) & 0x7;
|
||||||
|
smask = 0;
|
||||||
|
if (l & 0x20) /* $s0 */
|
||||||
|
smask |= 1 << 0;
|
||||||
|
if (l & 0x10) /* $s1 */
|
||||||
|
smask |= 1 << 1;
|
||||||
|
if (nsreg > 0) /* $s2-$s8 */
|
||||||
|
smask |= ((1 << nsreg) - 1) << 2;
|
||||||
|
|
||||||
|
/* Find first set static reg bit. */
|
||||||
|
for (i = 0; i < 9; i++)
|
||||||
|
{
|
||||||
|
if (smask & (1 << i))
|
||||||
|
{
|
||||||
|
(*info->fprintf_func) (info->stream, ",%s",
|
||||||
|
mips_gpr_names[i == 8 ? 30 : (16 + i)]);
|
||||||
|
/* Skip over string of set bits. */
|
||||||
|
for (j = i; smask & (2 << j); j++)
|
||||||
|
continue;
|
||||||
|
if (j > i)
|
||||||
|
(*info->fprintf_func) (info->stream, "-%s",
|
||||||
|
mips_gpr_names[j == 8 ? 30 : (16 + j)]);
|
||||||
|
i = j + 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Statics $ax - $a3. */
|
||||||
|
if (statics == 1)
|
||||||
|
(*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[7]);
|
||||||
|
else if (statics > 0)
|
||||||
|
(*info->fprintf_func) (info->stream, ",%s-%s",
|
||||||
|
mips_gpr_names[7 - statics + 1],
|
||||||
|
mips_gpr_names[7]);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
/* xgettext:c-format */
|
/* xgettext:c-format */
|
||||||
(*info->fprintf_func)
|
(*info->fprintf_func)
|
||||||
|
|||||||
@ -226,6 +226,8 @@ const struct mips_opcode mips16_opcodes[] =
|
|||||||
{"jalrc", "R,x", 0xe8c0, 0xf8ff, WR_31|RD_x|TRAP, 0, 0 },
|
{"jalrc", "R,x", 0xe8c0, 0xf8ff, WR_31|RD_x|TRAP, 0, 0 },
|
||||||
{"jrc", "x", 0xe880, 0xf8ff, RD_x|TRAP, 0, 0 },
|
{"jrc", "x", 0xe880, 0xf8ff, RD_x|TRAP, 0, 0 },
|
||||||
{"jrc", "R", 0xe8a0, 0xffff, RD_31|TRAP, 0, 0 },
|
{"jrc", "R", 0xe8a0, 0xffff, RD_31|TRAP, 0, 0 },
|
||||||
|
{"restore", "M", 0x6400, 0xff80, WR_31|RD_SP|WR_SP|TRAP, 0, 0 },
|
||||||
|
{"save", "m", 0x6480, 0xff80, RD_31|RD_SP|WR_SP|TRAP, 0, 0 },
|
||||||
{"seb", "x", 0xe891, 0xf8ff, WR_x|RD_x, 0, 0 },
|
{"seb", "x", 0xe891, 0xf8ff, WR_x|RD_x, 0, 0 },
|
||||||
{"seh", "x", 0xe8b1, 0xf8ff, WR_x|RD_x, 0, 0 },
|
{"seh", "x", 0xe8b1, 0xf8ff, WR_x|RD_x, 0, 0 },
|
||||||
{"sew", "x", 0xe8d1, 0xf8ff, WR_x|RD_x, 0, I3 },
|
{"sew", "x", 0xe8d1, 0xf8ff, WR_x|RD_x, 0, I3 },
|
||||||
|
|||||||
Reference in New Issue
Block a user