diff options
Diffstat (limited to 'cpu/frv.opc')
| -rw-r--r-- | cpu/frv.opc | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/cpu/frv.opc b/cpu/frv.opc index e4b9657..46985b6 100644 --- a/cpu/frv.opc +++ b/cpu/frv.opc @@ -90,6 +90,8 @@ static int find_major_in_vliw PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE)); static int fr400_check_insn_major_constraints PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE)); +static int fr450_check_insn_major_constraints + PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE)); static int fr500_check_insn_major_constraints PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE)); static int fr550_check_insn_major_constraints @@ -106,6 +108,10 @@ frv_is_branch_major (CGEN_ATTR_VALUE_TYPE major, unsigned long mach) if (major >= FR400_MAJOR_B_1 && major <= FR400_MAJOR_B_6) return 1; /* is a branch */ break; + case bfd_mach_fr450: + if (major >= FR450_MAJOR_B_1 && major <= FR450_MAJOR_B_6) + return 1; /* is a branch */ + break; default: if (major >= FR500_MAJOR_B_1 && major <= FR500_MAJOR_B_6) return 1; /* is a branch */ @@ -121,6 +127,7 @@ frv_is_float_major (CGEN_ATTR_VALUE_TYPE major, unsigned long mach) switch (mach) { case bfd_mach_fr400: + case bfd_mach_fr450: return 0; /* No float insns */ default: if (major >= FR500_MAJOR_F_1 && major <= FR500_MAJOR_F_8) @@ -140,6 +147,10 @@ frv_is_media_major (CGEN_ATTR_VALUE_TYPE major, unsigned long mach) if (major >= FR400_MAJOR_M_1 && major <= FR400_MAJOR_M_2) return 1; /* is a media insn */ break; + case bfd_mach_fr450: + if (major >= FR450_MAJOR_M_1 && major <= FR450_MAJOR_M_6) + return 1; /* is a media insn */ + break; default: if (major >= FR500_MAJOR_M_1 && major <= FR500_MAJOR_M_8) return 1; /* is a media insn */ @@ -155,6 +166,9 @@ frv_is_branch_insn (const CGEN_INSN *insn) if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR), bfd_mach_fr400)) return 1; + if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR), + bfd_mach_fr450)) + return 1; if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR), bfd_mach_fr500)) return 1; @@ -168,6 +182,9 @@ frv_is_float_insn (const CGEN_INSN *insn) if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR), bfd_mach_fr400)) return 1; + if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR), + bfd_mach_fr450)) + return 1; if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR), bfd_mach_fr500)) return 1; @@ -181,6 +198,9 @@ frv_is_media_insn (const CGEN_INSN *insn) if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR), bfd_mach_fr400)) return 1; + if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR), + bfd_mach_fr450)) + return 1; if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR), bfd_mach_fr500)) return 1; @@ -291,6 +311,42 @@ static CGEN_ATTR_VALUE_TYPE fr400_unit_mapping[] = /* SCAN */ UNIT_I0, /* scan only in I0 unit. */ /* DCPL */ UNIT_C, /* dcpl only in C unit. */ /* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */ +/* MDCUTSSI */ UNIT_FM0, /* mdcutssi only in FM0 unit. */ +/* MCLRACC-1*/ UNIT_FM0 /* mclracc,A==1 insn only in FM0 unit. */ +}; + +/* Some insns are assigned specialized implementation units which map to + different actual implementation units on different machines. These + tables perform that mapping. */ +static CGEN_ATTR_VALUE_TYPE fr450_unit_mapping[] = +{ +/* unit in insn actual unit */ +/* NIL */ UNIT_NIL, +/* I0 */ UNIT_I0, +/* I1 */ UNIT_I1, +/* I01 */ UNIT_I01, +/* I2 */ UNIT_NIL, /* no I2 or I3 unit */ +/* I3 */ UNIT_NIL, +/* IALL */ UNIT_I01, /* only I0 and I1 units */ +/* FM0 */ UNIT_FM0, +/* FM1 */ UNIT_FM1, +/* FM01 */ UNIT_FM01, +/* FM2 */ UNIT_NIL, /* no F2 or M2 units */ +/* FM3 */ UNIT_NIL, /* no F3 or M3 units */ +/* FMALL */ UNIT_FM01,/* Only F0,F1,M0,M1 units */ +/* FMLOW */ UNIT_FM0, /* Only F0,M0 units */ +/* B0 */ UNIT_B0, /* branches only in B0 unit. */ +/* B1 */ UNIT_B0, +/* B01 */ UNIT_B0, +/* C */ UNIT_C, +/* MULT-DIV */ UNIT_I0, /* multiply and divide only in I0 unit. */ +/* IACC */ UNIT_I01, /* iacc multiply in I0 or I1 unit. */ +/* LOAD */ UNIT_I0, /* load only in I0 unit. */ +/* STORE */ UNIT_I0, /* store only in I0 unit. */ +/* SCAN */ UNIT_I0, /* scan only in I0 unit. */ +/* DCPL */ UNIT_I0, /* dcpl only in I0 unit. */ +/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */ +/* MDCUTSSI */ UNIT_FM01, /* mdcutssi in FM0 or FM1. */ /* MCLRACC-1*/ UNIT_FM0 /* mclracc,A==1 insn only in FM0 unit. */ }; @@ -322,6 +378,7 @@ static CGEN_ATTR_VALUE_TYPE fr500_unit_mapping[] = /* SCAN */ UNIT_I01, /* scan in I0 or I1 unit. */ /* DCPL */ UNIT_C, /* dcpl only in C unit. */ /* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */ +/* MDCUTSSI */ UNIT_FM0, /* mdcutssi only in FM0 unit. */ /* MCLRACC-1*/ UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit. */ }; @@ -353,6 +410,7 @@ static CGEN_ATTR_VALUE_TYPE fr550_unit_mapping[] = /* SCAN */ UNIT_IALL, /* scan in any integer unit. */ /* DCPL */ UNIT_I0, /* dcpl only in I0 unit. */ /* MDUALACC */ UNIT_FMALL,/* media dual acc insn in all media units */ +/* MDCUTSSI */ UNIT_FM01, /* mdcutssi in FM0 or FM1 unit. */ /* MCLRACC-1*/ UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit. */ }; @@ -370,6 +428,10 @@ frv_vliw_reset (FRV_VLIW *vliw, unsigned long mach, unsigned long elf_flags) vliw->current_vliw = fr400_allowed_vliw; vliw->unit_mapping = fr400_unit_mapping; break; + case bfd_mach_fr450: + vliw->current_vliw = fr400_allowed_vliw; + vliw->unit_mapping = fr450_unit_mapping; + break; case bfd_mach_fr550: vliw->current_vliw = fr550_allowed_vliw; vliw->unit_mapping = fr550_unit_mapping; @@ -508,6 +570,43 @@ fr400_check_insn_major_constraints ( } static int +fr450_check_insn_major_constraints ( + FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major +) +{ + CGEN_ATTR_VALUE_TYPE other_major; + + /* Our caller guarantees there's at least one other instruction. */ + other_major = CGEN_INSN_ATTR_VALUE (vliw->insn[0], CGEN_INSN_FR450_MAJOR); + + /* (M4, M5) and (M4, M6) are allowed. */ + if (other_major == FR450_MAJOR_M_4) + if (major == FR450_MAJOR_M_5 || major == FR450_MAJOR_M_6) + return 1; + + /* Otherwise, instructions in even-numbered media categories cannot be + executed in parallel with other media instructions. */ + switch (major) + { + case FR450_MAJOR_M_2: + case FR450_MAJOR_M_4: + case FR450_MAJOR_M_6: + return !(other_major >= FR450_MAJOR_M_1 + && other_major <= FR450_MAJOR_M_6); + + case FR450_MAJOR_M_1: + case FR450_MAJOR_M_3: + case FR450_MAJOR_M_5: + return !(other_major == FR450_MAJOR_M_2 + || other_major == FR450_MAJOR_M_4 + || other_major == FR450_MAJOR_M_6); + + default: + return 1; + } +} + +static int find_unit_in_vliw ( FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE unit ) @@ -744,6 +843,9 @@ check_insn_major_constraints ( case bfd_mach_fr400: rc = fr400_check_insn_major_constraints (vliw, major); break; + case bfd_mach_fr450: + rc = fr450_check_insn_major_constraints (vliw, major); + break; case bfd_mach_fr550: rc = fr550_check_insn_major_constraints (vliw, major, insn); break; @@ -784,6 +886,9 @@ frv_vliw_add_insn (FRV_VLIW *vliw, const CGEN_INSN *insn) case bfd_mach_fr400: major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR); break; + case bfd_mach_fr450: + major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR); + break; case bfd_mach_fr550: major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR550_MAJOR); break; |