diff options
Diffstat (limited to 'meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.29/0008-Add-new-MicroBlaze-bit-field-instructions.patch')
| -rw-r--r-- | meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.29/0008-Add-new-MicroBlaze-bit-field-instructions.patch | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.29/0008-Add-new-MicroBlaze-bit-field-instructions.patch b/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.29/0008-Add-new-MicroBlaze-bit-field-instructions.patch new file mode 100644 index 00000000..0bc01177 --- /dev/null +++ b/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.29/0008-Add-new-MicroBlaze-bit-field-instructions.patch @@ -0,0 +1,232 @@ +From 5c4dacaae2ba93569c1d37cda9859c57d6649dc0 Mon Sep 17 00:00:00 2001 +From: Nagaraju Mekala <nagaraju.mekala@xilinx.com> +Date: Mon, 28 Aug 2017 19:54:01 -0700 +Subject: [PATCH] Add new MicroBlaze bit-field instructions + +This patches adds new bsefi and bsifi instructions. BSEFI- The +instruction shall extract a bit field from a register and place it +right-adjusted in the destination register. The other bits in the +destination register shall be set to zero BSIFI- The instruction shall +insert a right-adjusted bit field from a register at another position in +the destination register. The rest of the bits in the destination +register shall be unchanged + +Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com> +Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> +Upstream-Status: Pending +--- + gas/config/tc-microblaze.c | 71 +++++++++++++++++++++++++++++++++++++++++++++- + opcodes/microblaze-dis.c | 16 +++++++++++ + opcodes/microblaze-opc.h | 12 +++++++- + opcodes/microblaze-opcm.h | 6 +++- + 4 files changed, 102 insertions(+), 3 deletions(-) + +diff --git a/gas/config/tc-microblaze.c b/gas/config/tc-microblaze.c +index e135547e62..34cb80fac2 100644 +--- a/gas/config/tc-microblaze.c ++++ b/gas/config/tc-microblaze.c +@@ -909,7 +909,7 @@ md_assemble (char * str) + unsigned reg2; + unsigned reg3; + unsigned isize; +- unsigned int immed, temp; ++ unsigned int immed, immed2, temp; + expressionS exp; + char name[20]; + +@@ -1164,7 +1164,76 @@ md_assemble (char * str) + inst |= (reg2 << RA_LOW) & RA_MASK; + inst |= (immed << IMM_LOW) & IMM5_MASK; + break; ++ case INST_TYPE_RD_R1_IMM5_IMM5: ++ if (strcmp (op_end, "")) ++ op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ ++ else ++ { ++ as_fatal (_("Error in statement syntax")); ++ reg1 = 0; ++ } ++ if (strcmp (op_end, "")) ++ op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ ++ else ++ { ++ as_fatal (_("Error in statement syntax")); ++ reg2 = 0; ++ } ++ ++ /* Check for spl registers. */ ++ if (check_spl_reg (®1)) ++ as_fatal (_("Cannot use special register with this instruction")); ++ if (check_spl_reg (®2)) ++ as_fatal (_("Cannot use special register with this instruction")); + ++ /* Width immediate value. */ ++ if (strcmp (op_end, "")) ++ op_end = parse_imm (op_end + 1, &exp, MIN_IMM_WIDTH, MAX_IMM_WIDTH); ++ else ++ as_fatal (_("Error in statement syntax")); ++ if (exp.X_op != O_constant) ++ { ++ as_warn (_("Symbol used as immediate width value for bit field instruction")); ++ immed = 1; ++ } ++ else ++ immed = exp.X_add_number; ++ if (opcode->instr == bsefi && immed > 31) ++ as_fatal (_("Width value must be less than 32")); ++ ++ /* Shift immediate value. */ ++ if (strcmp (op_end, "")) ++ op_end = parse_imm (op_end + 1, &exp, MIN_IMM, MAX_IMM); ++ else ++ as_fatal (_("Error in statement syntax")); ++ if (exp.X_op != O_constant) ++ { ++ as_warn (_("Symbol used as immediate shift value for bit field instruction")); ++ immed2 = 0; ++ } ++ else ++ { ++ output = frag_more (isize); ++ immed2 = exp.X_add_number; ++ } ++ if (immed2 != (immed2 % 32)) ++ { ++ as_warn (_("Shift value greater than 32. using <value %% 32>")); ++ immed2 = immed2 % 32; ++ } ++ ++ /* Check combined value. */ ++ if (immed + immed2 > 32) ++ as_fatal (_("Width value + shift value must not be greater than 32")); ++ ++ inst |= (reg1 << RD_LOW) & RD_MASK; ++ inst |= (reg2 << RA_LOW) & RA_MASK; ++ if (opcode->instr == bsefi) ++ inst |= (immed & IMM5_MASK) << IMM_WIDTH_LOW; /* bsefi */ ++ else ++ inst |= ((immed + immed2 - 1) & IMM5_MASK) << IMM_WIDTH_LOW; /* bsifi */ ++ inst |= (immed2 << IMM_LOW) & IMM5_MASK; ++ break; + case INST_TYPE_R1_R2: + if (strcmp (op_end, "")) + op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ +diff --git a/opcodes/microblaze-dis.c b/opcodes/microblaze-dis.c +index 6a174b0eb9..80a47ad2fc 100644 +--- a/opcodes/microblaze-dis.c ++++ b/opcodes/microblaze-dis.c +@@ -73,6 +73,18 @@ get_field_imm5_mbar (long instr) + return(strdup(tmpstr)); + } + ++static char * ++get_field_imm5width (long instr) ++{ ++ char tmpstr[25]; ++ ++ if (instr & 0x00004000) ++ sprintf (tmpstr, "%d", (short)(((instr & IMM5_WIDTH_MASK) >> IMM_WIDTH_LOW))); /* bsefi */ ++ else ++ sprintf (tmpstr, "%d", (short)(((instr & IMM5_WIDTH_MASK) >> IMM_WIDTH_LOW) - ((instr & IMM5_MASK) >> IMM_LOW) + 1)); /* bsifi */ ++ return (strdup (tmpstr)); ++} ++ + static char * + get_field_rfsl (long instr) + { +@@ -396,6 +408,10 @@ print_insn_microblaze (bfd_vma memaddr, struct disassemble_info * info) + /* For mbar 16 or sleep insn. */ + case INST_TYPE_NONE: + break; ++ /* For bit field insns. */ ++ case INST_TYPE_RD_R1_IMM5_IMM5: ++ print_func (stream, "\t%s, %s, %s, %s", get_field_rd (inst),get_field_r1(inst),get_field_imm5width (inst), get_field_imm5 (inst)); ++ break; + /* For tuqula instruction */ + case INST_TYPE_RD: + print_func (stream, "\t%s", get_field_rd (inst)); +diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h +index a64f8362da..afb34989d9 100644 +--- a/opcodes/microblaze-opc.h ++++ b/opcodes/microblaze-opc.h +@@ -59,6 +59,9 @@ + /* For mbar. */ + #define INST_TYPE_IMM5 20 + ++/* For bsefi and bsifi */ ++#define INST_TYPE_RD_R1_IMM5_IMM5 21 ++ + #define INST_TYPE_NONE 25 + + +@@ -89,7 +92,9 @@ + #define OPCODE_MASK_H124 0xFFFF07FF /* High 16, and low 11 bits. */ + #define OPCODE_MASK_H1234 0xFFFFFFFF /* All 32 bits. */ + #define OPCODE_MASK_H3 0xFC000600 /* High 6 bits and bits 21, 22. */ ++#define OPCODE_MASK_H3B 0xFC00C600 /* High 6 bits and bits 16, 17, 21, 22. */ + #define OPCODE_MASK_H32 0xFC00FC00 /* High 6 bits and bit 16-21. */ ++#define OPCODE_MASK_H32B 0xFC00C000 /* High 6 bits and bit 16, 17. */ + #define OPCODE_MASK_H34B 0xFC0000FF /* High 6 bits and low 8 bits. */ + #define OPCODE_MASK_H35B 0xFC0004FF /* High 6 bits and low 9 bits. */ + #define OPCODE_MASK_H34C 0xFC0007E0 /* High 6 bits and bits 21-26. */ +@@ -102,7 +107,7 @@ + #define DELAY_SLOT 1 + #define NO_DELAY_SLOT 0 + +-#define MAX_OPCODES 299 ++#define MAX_OPCODES 301 + + struct op_code_struct + { +@@ -159,6 +164,8 @@ struct op_code_struct + {"bslli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000400, OPCODE_MASK_H3, bslli, barrel_shift_inst }, + {"bsrai", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000200, OPCODE_MASK_H3, bsrai, barrel_shift_inst }, + {"bsrli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000000, OPCODE_MASK_H3, bsrli, barrel_shift_inst }, ++ {"bsefi", INST_TYPE_RD_R1_IMM5_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64004000, OPCODE_MASK_H32B, bsefi, barrel_shift_inst }, ++ {"bsifi", INST_TYPE_RD_R1_IMM5_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64008000, OPCODE_MASK_H32B, bsifi, barrel_shift_inst }, + {"or", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x80000000, OPCODE_MASK_H4, microblaze_or, logical_inst }, + {"and", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x84000000, OPCODE_MASK_H4, microblaze_and, logical_inst }, + {"xor", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x88000000, OPCODE_MASK_H4, microblaze_xor, logical_inst }, +@@ -438,5 +445,8 @@ char pvr_register_prefix[] = "rpvr"; + #define MIN_IMM5 ((int) 0x00000000) + #define MAX_IMM5 ((int) 0x0000001f) + ++#define MIN_IMM_WIDTH ((int) 0x00000001) ++#define MAX_IMM_WIDTH ((int) 0x00000020) ++ + #endif /* MICROBLAZE_OPC */ + +diff --git a/opcodes/microblaze-opcm.h b/opcodes/microblaze-opcm.h +index 21a3dc8d76..dd6be7f65c 100644 +--- a/opcodes/microblaze-opcm.h ++++ b/opcodes/microblaze-opcm.h +@@ -29,7 +29,7 @@ enum microblaze_instr + addi, rsubi, addic, rsubic, addik, rsubik, addikc, rsubikc, mul, + mulh, mulhu, mulhsu,swapb,swaph, + idiv, idivu, bsll, bsra, bsrl, get, put, nget, nput, cget, cput, +- ncget, ncput, muli, bslli, bsrai, bsrli, mului, ++ ncget, ncput, muli, bslli, bsrai, bsrli, bsefi, bsifi, mului, + /* 'or/and/xor' are C++ keywords. */ + microblaze_or, microblaze_and, microblaze_xor, + andn, pcmpbf, pcmpbc, pcmpeq, pcmpne, sra, src, srl, sext8, sext16, +@@ -129,6 +129,7 @@ enum microblaze_instr_type + #define RB_LOW 11 /* Low bit for RB. */ + #define IMM_LOW 0 /* Low bit for immediate. */ + #define IMM_MBAR 21 /* low bit for mbar instruction. */ ++#define IMM_WIDTH_LOW 6 /* Low bit for immediate width */ + + #define RD_MASK 0x03E00000 + #define RA_MASK 0x001F0000 +@@ -141,6 +142,9 @@ enum microblaze_instr_type + /* Imm mask for mbar. */ + #define IMM5_MBAR_MASK 0x03E00000 + ++/* Imm mask for extract/insert width. */ ++#define IMM5_WIDTH_MASK 0x000007C0 ++ + /* FSL imm mask for get, put instructions. */ + #define RFSL_MASK 0x000000F + +-- +2.15.0 + |