// -*- mode:c++ -*- // Copyright (c) 2007-2008 The Florida State University // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer; // redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution; // neither the name of the copyright holders nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // Authors: Stephen Hines //////////////////////////////////////////////////////////////////// // // The actual ARM ISA decoder // -------------------------- // The following instructions are specified in the ARM ISA // Specification. Decoding closely follows the style specified // in the ARM ISA specification document starting with Table B.1 or 3-1 // // decode COND_CODE default Unknown::unknown() { 0xf: decode COND_CODE { 0x0: decode OPCODE_27_25 { // Just a simple trick to allow us to specify our new uops here 0x0: PredImmOp::addi_uop({{ Raddr = Rn + rotated_imm; }}, 'IsMicroop'); 0x1: PredImmOp::subi_uop({{ Raddr = Rn - rotated_imm; }}, 'IsMicroop'); 0x2: ArmLoadMemory::ldr_uop({{ Rd = Mem; }}, {{ EA = Raddr + disp; }}, inst_flags = [IsMicroop]); 0x3: ArmStoreMemory::str_uop({{ Mem = Rd; }}, {{ EA = Raddr + disp; }}, inst_flags = [IsMicroop]); 0x4: PredImmOp::addi_rd_uop({{ Rd = Rn + rotated_imm; }}, 'IsMicroop'); 0x5: PredImmOp::subi_rd_uop({{ Rd = Rn - rotated_imm; }}, 'IsMicroop'); } 0x1: decode OPCODE_27_25 { 0x0: PredIntOp::mvtd_uop({{ Fd.ud = ((uint64_t) Rhi << 32)|Rlo; }}, 'IsMicroop'); 0x1: PredIntOp::mvfd_uop({{ Rhi = (Fd.ud >> 32) & 0xffffffff; Rlo = Fd.ud & 0xffffffff; }}, 'IsMicroop'); 0x2: ArmLoadMemory::ldhi_uop({{ Rhi = Mem; }}, {{ EA = Rn + disp; }}, inst_flags = [IsMicroop]); 0x3: ArmLoadMemory::ldlo_uop({{ Rlo = Mem; }}, {{ EA = Rn + disp; }}, inst_flags = [IsMicroop]); 0x4: ArmStoreMemory::sthi_uop({{ Mem = Rhi; }}, {{ EA = Rn + disp; }}, inst_flags = [IsMicroop]); 0x5: ArmStoreMemory::stlo_uop({{ Mem = Rlo; }}, {{ EA = Rn + disp; }}, inst_flags = [IsMicroop]); } default: Unknown::unknown(); // TODO: Ignore other NV space for now } format BasicOp{ default: decode OPCODE_27_25 { 0x0: decode OPCODE_4 { 0: decode S_FIELD { 0: decode OPCODE_24_21 { format PredIntOp { 0x0: and({{ Rd = Rn & Rm_Imm; }}); 0x1: eor({{ Rd = Rn ^ Rm_Imm; }}); 0x2: sub({{ Rd = Rn - Rm_Imm; }}); 0x3: rsb({{ Rd = Rm_Imm - Rn; }}); 0x4: add({{ Rd = Rn + Rm_Imm; }}); 0x5: adc({{ Rd = Rn + Rm_Imm + Cpsr<29:>; }}); 0x6: sbc({{ Rd = Rn - Rm_Imm + Cpsr<29:> - 1; }}); 0x7: rsc({{ Rd = Rm_Imm - Rn + Cpsr<29:> - 1; }}); //0x8:mrs_cpsr -- TODO //0x9:msr_cpsr -- TODO //0xa:mrs_spsr -- TODO //0xb:msr_spsr -- TODO 0xc: orr({{ Rd = Rn | Rm_Imm; }}); 0xd: mov({{ Rd = Rm_Imm; }}); 0xe: bic({{ Rd = Rn & ~Rm_Imm; }}); 0xf: mvn({{ Rd = ~Rm_Imm; }}); } } 1: decode OPCODE_24_21 { format PredIntOpCc { 0x0: ands({{ uint32_t resTemp; Rd = resTemp = Rn & Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x1: eors({{ uint32_t resTemp; Rd = resTemp = Rn ^ Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x2: subs({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = Rn - val2; }}, {{ arm_sub_carry(resTemp, Rn, val2) }}, {{ arm_sub_overflow(resTemp, Rn, val2) }}); 0x3: rsbs({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = val2 - Rn; }}, {{ arm_sub_carry(resTemp, val2, Rn) }}, {{ arm_sub_overflow(resTemp, val2, Rn) }}); 0x4: adds({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = Rn + val2; }}, {{ arm_add_carry(resTemp, Rn, val2) }}, {{ arm_add_overflow(resTemp, Rn, val2) }}); 0x5: adcs({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = Rn + val2 + Cpsr<29:>; }}, {{ arm_add_carry(resTemp, Rn, val2) }}, {{ arm_add_overflow(resTemp, Rn, val2) }}); 0x6: sbcs({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = Rn - val2 + Cpsr<29:> - 1; }}, {{ arm_sub_carry(resTemp, Rn, val2) }}, {{ arm_sub_overflow(resTemp, Rn, val2) }}); 0x7: rscs({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = val2 - Rn + Cpsr<29:> - 1; }}, {{ arm_sub_carry(resTemp, val2, Rn) }}, {{ arm_sub_overflow(resTemp, val2, Rn) }}); 0x8: tst({{ uint32_t resTemp; resTemp = Rn & Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x9: teq({{ uint32_t resTemp; resTemp = Rn ^ Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xa: cmp({{ uint32_t resTemp, val2 = Rm_Imm; resTemp = Rn - val2; }}, {{ arm_sub_carry(resTemp, Rn, val2) }}, {{ arm_sub_overflow(resTemp, Rn, val2) }}); 0xb: cmn({{ uint32_t resTemp, val2 = Rm_Imm; resTemp = Rn + val2; }}, {{ arm_add_carry(resTemp, Rn, val2) }}, {{ arm_add_overflow(resTemp, Rn, val2) }}); 0xc: orrs({{ uint32_t resTemp, val2 = Rm_Imm; Rd = resTemp = Rn | val2; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xd: movs({{ uint32_t resTemp; Rd = resTemp = Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xe: bics({{ uint32_t resTemp; Rd = resTemp = Rn & ~Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xf: mvns({{ uint32_t resTemp; Rd = resTemp = ~Rm_Imm; }}, {{ shift_carry_imm(Rm, shift_size, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); } } } 1: decode OPCODE_7 { 0: decode S_FIELD { 0: decode OPCODE_24_21 { format PredIntOp { 0x0: and_rs({{ Rd = Rn & Rm_Rs; }}); 0x1: eor_rs({{ Rd = Rn ^ Rm_Rs; }}); 0x2: sub_rs({{ Rd = Rn - Rm_Rs; }}); 0x3: rsb_rs({{ Rd = Rm_Rs - Rn; }}); 0x4: add_rs({{ Rd = Rn + Rm_Rs; }}); 0x5: adc_rs({{ Rd = Rn + Rm_Rs + Cpsr<29:>; }}); 0x6: sbc_rs({{ Rd = Rn - Rm_Rs + Cpsr<29:> - 1; }}); 0x7: rsc_rs({{ Rd = Rm_Rs - Rn + Cpsr<29:> - 1; }}); 0xc: orr_rs({{ Rd = Rn | Rm_Rs; }}); 0xd: mov_rs({{ Rd = Rm_Rs; }}); 0xe: bic_rs({{ Rd = Rn & ~Rm_Rs; }}); 0xf: mvn_rs({{ Rd = ~Rm_Rs; }}); default: decode OPCODE_7_4 { 0x1: decode OPCODE_24_21 { 0x9: BranchExchange::bx({{ }}); 0xb: PredOp::clz({{ if (Rm == 0) Rd = 32; else { int i; for (i = 0; i < 32; i++) { if (Rm & (1<<(31-i))) break; } Rd = i; } }}); } 0x3: decode OPCODE_24_21 { 0x9: BranchExchange::blx({{ LR = NPC; }}); } } } } 1: decode OPCODE_24_21 { format PredIntOpCc { 0x0: ands_rs({{ uint32_t resTemp; Rd = resTemp = Rn & Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x1: eors_rs({{ uint32_t resTemp; Rd = resTemp = Rn ^ Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x2: subs_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = Rn - val2; }}, {{ arm_sub_carry(resTemp, Rn, val2) }}, {{ arm_sub_overflow(resTemp, Rn, val2) }}); 0x3: rsbs_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = val2 - Rn; }}, {{ arm_sub_carry(resTemp, val2, Rn) }}, {{ arm_sub_overflow(resTemp, val2, Rn) }}); 0x4: adds_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = Rn + val2; }}, {{ arm_add_carry(resTemp, Rn, val2) }}, {{ arm_add_overflow(resTemp, Rn, val2) }}); 0x5: adcs_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = Rn + val2 + Cpsr<29:>; }}, {{ arm_add_carry(resTemp, Rn, val2) }}, {{ arm_add_overflow(resTemp, Rn, val2) }}); 0x6: sbcs_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = Rn - val2 + Cpsr<29:> - 1; }}, {{ arm_sub_carry(resTemp, Rn, val2) }}, {{ arm_sub_overflow(resTemp, Rn, val2) }}); 0x7: rscs_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = val2 - Rn + Cpsr<29:> - 1; }}, {{ arm_sub_carry(resTemp, val2, Rn) }}, {{ arm_sub_overflow(resTemp, val2, Rn) }}); 0x8: tst_rs({{ uint32_t resTemp; resTemp = Rn & Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x9: teq_rs({{ uint32_t resTemp; resTemp = Rn ^ Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xa: cmp_rs({{ uint32_t resTemp, val2 = Rm_Rs; resTemp = Rn - val2; }}, {{ arm_sub_carry(resTemp, Rn, val2) }}, {{ arm_sub_overflow(resTemp, Rn, val2) }}); 0xb: cmn_rs({{ uint32_t resTemp, val2 = Rm_Rs; resTemp = Rn + val2; }}, {{ arm_add_carry(resTemp, Rn, val2) }}, {{ arm_add_overflow(resTemp, Rn, val2) }}); 0xc: orrs_rs({{ uint32_t resTemp, val2 = Rm_Rs; Rd = resTemp = Rn | val2; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xd: movs_rs({{ uint32_t resTemp; Rd = resTemp = Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xe: bics_rs({{ uint32_t resTemp; Rd = resTemp = Rn & ~Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xf: mvns_rs({{ uint32_t resTemp; Rd = resTemp = ~Rm_Rs; }}, {{ shift_carry_rs(Rm, Rs, shift, Cpsr<29:>) }}, {{ Cpsr<28:> }}); } } } 1: decode OPCODE_6_5 { 0x0: decode OPCODE_24 { 0: decode LUAS { format PredIntOp { 0x0: mul({{ Rn = Rm * Rs; }}); 0x1: PredIntOpCc::muls({{ uint32_t resTemp; Rn = resTemp = Rm * Rs; }}, {{ Cpsr<29:> }}, {{ Cpsr<28:> }}); 0x2: mla_a({{ Rn = Rm * Rs + Rd; }}); 0x8: umull_l({{ uint64_t resTemp; resTemp = ((uint64_t)Rm)*((uint64_t)Rs); Rd = (uint32_t)(resTemp & 0xffffffff); Rn = (uint32_t)(resTemp >> 32); }}); 0xa: umlal_lu({{ uint64_t resTemp; resTemp = ((uint64_t)Rm)*((uint64_t)Rs); resTemp += ((uint64_t)Rn << 32)+((uint64_t)Rd); Rd = (uint32_t)(resTemp & 0xffffffff); Rn = (uint32_t)(resTemp >> 32); }}); 0xc: smull_lu({{ int64_t resTemp; resTemp = ((int64_t)Rm)*((int64_t)Rs); Rd = (int32_t)(resTemp & 0xffffffff); Rn = (int32_t)(resTemp >> 32); }}); } } } 0x1: decode PUIWL { 0x04,0x0c: ArmStoreMemory::strh_i({{ Mem.uh = Rd.uh; Rn = Rn + hilo; }}, {{ EA = Rn; }}); 0x05,0x0d: ArmLoadMemory::ldrh_il({{ Rd.uh = Mem.uh; Rn = Rn + hilo; }}, {{ EA = Rn; }}); 0x10,0x18: ArmStoreMemory::strh_p({{ Mem.uh = Rd.uh; }}, {{ EA = Rn + Rm; }}); 0x11,0x19: ArmLoadMemory::ldrh_pl({{ Rd.uh = Mem.uh; }}, {{ EA = Rn + Rm; }}); 0x12,0x1a: ArmStoreMemory::strh_pw({{ Mem.uh = Rd.uh; Rn = Rn + Rm; }}, {{ EA = Rn + Rm; }}); 0x13,0x1b: ArmLoadMemory::ldrh_pwl({{ Rd.uh = Mem.uh; Rn = Rn + Rm; }}, {{ EA = Rn + Rm; }}); 0x14,0x1c: ArmStoreMemory::strh_pi({{ Mem.uh = Rd.uh; }}, {{ EA = Rn + hilo; }}); 0x15,0x1d: ArmLoadMemory::ldrh_pil({{ Rd.uh = Mem.uh; }}, {{ EA = Rn + hilo; }}); 0x16,0x1e: ArmStoreMemory::strh_piw({{ Mem.uh = Rd.uh; Rn = Rn + hilo; }}, {{ EA = Rn + hilo; }}); 0x17,0x1f: ArmLoadMemory::ldrh_piwl({{ Rd.uh = Mem.uh; Rn = Rn + hilo; }}, {{ EA = Rn + hilo; }}); } 0x2: decode PUIWL { format ArmLoadMemory { 0x11,0x19: ldrsb_pl({{ Rd.sb = Mem.sb; }}, {{ EA = Rn + Rm; }}); 0x13,0x1b: ldrsb_pwl({{ Rd.sb = Mem.sb; Rn = Rn + Rm; }}, {{ EA = Rn + Rm; }}); 0x15,0x1d: ldrsb_pil({{ Rd.sb = Mem.sb; }}, {{ EA = Rn + hilo; }}); 0x17,0x1f: ldrsb_piwl({{ Rd.sb = Mem.sb; Rn = Rn + hilo; }}, {{ EA = Rn + hilo; }}); } } 0x3: decode PUIWL { format ArmLoadMemory { 0x11,0x19: ldrsh_pl({{ Rd.sh = Mem.sh; }}, {{ EA = Rn + Rm; }}); 0x13,0x1b: ldrsh_pwl({{ Rd.sh = Mem.sh; Rn = Rn + Rm; }}, {{ EA = Rn + Rm; }}); 0x15,0x1d: ldrsh_pil({{ Rd.sh = Mem.sh; }}, {{ EA = Rn + hilo; }}); 0x17,0x1f: ldrsh_piwl({{ Rd.sh = Mem.sh; Rn = Rn + hilo; }}, {{ EA = Rn + hilo; }}); } } } } } 0x1: decode S_FIELD { 0: decode OPCODE_24_21 { format PredImmOp { 0x0: andi({{ Rd = Rn & rotated_imm; }}); 0x1: eori({{ Rd = Rn ^ rotated_imm; }}); 0x2: subi({{ Rd = Rn - rotated_imm; }}); 0x3: rsbi({{ Rd = rotated_imm - Rn; }}); 0x4: addi({{ Rd = Rn + rotated_imm; }}); 0x5: adci({{ Rd = Rn + rotated_imm + Cpsr<29:>; }}); 0x6: sbci({{ Rd = Rn - rotated_imm + Cpsr<29:> - 1; }}); 0x7: rsci({{ Rd = rotated_imm - Rn + Cpsr<29:> - 1; }}); 0xc: orri({{ Rd = Rn | rotated_imm; }}); 0xd: decode RN { 0: movi({{ Rd = rotated_imm; }}); } 0xe: bici({{ Rd = Rn & ~rotated_imm; }}); 0xf: decode RN { 0: mvni({{ Rd = ~rotated_imm; }}); } } } 1: decode OPCODE_24_21 { format PredImmOpCc { 0x0: andsi({{ uint32_t resTemp; Rd = resTemp = Rn & rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x1: eorsi({{ uint32_t resTemp; Rd = resTemp = Rn ^ rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x2: subsi({{ uint32_t resTemp; Rd = resTemp = Rn - rotated_imm; }}, {{ arm_sub_carry(resTemp, Rn, rotated_imm) }}, {{ arm_sub_overflow(resTemp, Rn, rotated_imm) }}); 0x3: rsbsi({{ uint32_t resTemp; Rd = resTemp = rotated_imm - Rn; }}, {{ arm_sub_carry(resTemp, rotated_imm, Rn) }}, {{ arm_sub_overflow(resTemp, rotated_imm, Rn) }}); 0x4: addsi({{ uint32_t resTemp; Rd = resTemp = Rn + rotated_imm; }}, {{ arm_add_carry(resTemp, Rn, rotated_imm) }}, {{ arm_add_overflow(resTemp, Rn, rotated_imm) }}); 0x5: adcsi({{ uint32_t resTemp; Rd = resTemp = Rn + rotated_imm + Cpsr<29:>; }}, {{ arm_add_carry(resTemp, Rn, rotated_imm) }}, {{ arm_add_overflow(resTemp, Rn, rotated_imm) }}); 0x6: sbcsi({{ uint32_t resTemp; Rd = resTemp = Rn -rotated_imm + Cpsr<29:> - 1; }}, {{ arm_sub_carry(resTemp, Rn, rotated_imm) }}, {{ arm_sub_overflow(resTemp, Rn, rotated_imm) }}); 0x7: rscsi({{ uint32_t resTemp; Rd = resTemp = rotated_imm - Rn + Cpsr<29:> - 1; }}, {{ arm_sub_carry(resTemp, rotated_imm, Rn) }}, {{ arm_sub_overflow(resTemp, rotated_imm, Rn) }}); 0x8: tsti({{ uint32_t resTemp; resTemp = Rn & rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0x9: teqi({{ uint32_t resTemp; resTemp = Rn ^ rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xa: cmpi({{ uint32_t resTemp; resTemp = Rn - rotated_imm; }}, {{ arm_sub_carry(resTemp, Rn, rotated_imm) }}, {{ arm_sub_overflow(resTemp, Rn, rotated_imm) }}); 0xb: cmni({{ uint32_t resTemp; resTemp = Rn + rotated_imm; }}, {{ arm_add_carry(resTemp, Rn, rotated_imm) }}, {{ arm_add_overflow(resTemp, Rn, rotated_imm) }}); 0xc: orrsi({{ uint32_t resTemp; Rd = resTemp = Rn | rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xd: movsi({{ uint32_t resTemp; Rd = resTemp = rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xe: bicsi({{ uint32_t resTemp; Rd = resTemp = Rn & ~rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); 0xf: mvnsi({{ uint32_t resTemp; Rd = resTemp = ~rotated_imm; }}, {{ (rotate ? rotated_carry:Cpsr<29:>) }}, {{ Cpsr<28:> }}); } } } 0x2: decode PUBWL { // CAREFUL: // Can always do EA + disp, since we negate disp using the UP flag // Post-indexed variants 0x00,0x08: ArmStoreMemory::str_({{ Mem = Rd; Rn = Rn + disp; }}, {{ EA = Rn; }}); 0x01,0x09: ArmLoadMemory::ldr_l({{ Rd = Mem; Rn = Rn + disp; }}, {{ EA = Rn; }}); 0x04,0x0c: ArmStoreMemory::strb_b({{ Mem.ub = Rd.ub; Rn = Rn + disp; }}, {{ EA = Rn; }}); 0x05,0x0d: ArmLoadMemory::ldrb_bl({{ Rd.ub = Mem.ub; Rn = Rn + disp; }}, {{ EA = Rn; }}); // Pre-indexed variants 0x10,0x18: ArmStoreMemory::str_p({{ Mem = Rd; }}); 0x11,0x19: ArmLoadMemory::ldr_pl({{ Rd = Mem; }}); 0x12,0x1a: ArmStoreMemory::str_pw({{ Mem = Rd; Rn = Rn + disp; }}); 0x13,0x1b: ArmLoadMemory::ldr_pwl({{ Rd = Mem; Rn = Rn + disp; }}); 0x14,0x1c: ArmStoreMemory::strb_pb({{ Mem.ub = Rd.ub; }}); 0x15,0x1d: ArmLoadMemory::ldrb_pbl({{ Rd.ub = Mem.ub; }}); 0x16,0x1e: ArmStoreMemory::strb_pbw({{ Mem.ub = Rd.ub; Rn = Rn + disp; }}); 0x17,0x1f: ArmLoadMemory::ldrb_pbwl({{ Rd.ub = Mem.ub; Rn = Rn + disp; }}); } 0x3: decode OPCODE_4 { 0: decode PUBWL { 0x00,0x08: ArmStoreMemory::strr_({{ Mem = Rd; Rn = Rn + Rm_Imm; }}, {{ EA = Rn; }}); 0x01,0x09: ArmLoadMemory::ldrr_l({{ Rd = Mem; Rn = Rn + Rm_Imm; }}, {{ EA = Rn; }}); 0x04,0x0c: ArmStoreMemory::strr_b({{ Mem.ub = Rd.ub; Rn = Rn + Rm_Imm; }}, {{ EA = Rn; }}); 0x05,0x0d: ArmLoadMemory::ldrr_bl({{ Rd.ub = Mem.ub; Rn = Rn + Rm_Imm; }}, {{ EA = Rn; }}); 0x10,0x18: ArmStoreMemory::strr_p({{ Mem = Rd; }}, {{ EA = Rn + Rm_Imm; }}); 0x11,0x19: ArmLoadMemory::ldrr_pl({{ Rd = Mem; }}, {{ EA = Rn + Rm_Imm; }}); 0x12,0x1a: ArmStoreMemory::strr_pw({{ Mem = Rd; Rn = Rn + Rm_Imm; }}, {{ EA = Rn + Rm_Imm; }}); 0x13,0x1b: ArmLoadMemory::ldrr_pwl({{ Rd = Mem; Rn = Rn + Rm_Imm; }}, {{ EA = Rn + Rm_Imm; }}); 0x14,0x1c: ArmStoreMemory::strr_pb({{ Mem.ub = Rd.ub; }}, {{ EA = Rn + Rm_Imm; }}); 0x15,0x1d: ArmLoadMemory::ldrr_pbl({{ Rd.ub = Mem.ub; }}, {{ EA = Rn + Rm_Imm; }}); 0x16,0x1e: ArmStoreMemory::strr_pbw({{ Mem.ub = Rd.ub; Rn = Rn + Rm_Imm; }}, {{ EA = Rn + Rm_Imm; }}); 0x17,0x1f: ArmLoadMemory::ldrr_pbwl({{ Rd.ub = Mem.ub; Rn = Rn + Rm_Imm; }}, {{ EA = Rn + Rm_Imm; }}); } } 0x4: decode PUSWL { // Right now we only handle cases when S (PSRUSER) is not set default: ArmMacroStore::ldmstm({{ }}); } 0x5: decode OPCODE_24 { // Branch (and Link) Instructions 0: Branch::b({{ }}); 1: Branch::bl({{ LR = NPC; }}); } 0x6: decode CPNUM { 0x1: decode PUNWL { 0x02,0x0a: decode OPCODE_15 { 0: ArmStoreMemory::stfs_({{ Mem.sf = Fd.sf; Rn = Rn + disp8; }}, {{ EA = Rn; }}); 1: ArmMacroFPAOp::stfd_({{ }}); } 0x03,0x0b: decode OPCODE_15 { 0: ArmLoadMemory::ldfs_({{ Fd.sf = Mem.sf; Rn = Rn + disp8; }}, {{ EA = Rn; }}); 1: ArmMacroFPAOp::ldfd_({{ }}); } 0x06,0x0e: decode OPCODE_15 { 0: ArmMacroFPAOp::stfe_nw({{ }}); } 0x07,0x0f: decode OPCODE_15 { 0: ArmMacroFPAOp::ldfe_nw({{ }}); } 0x10,0x18: decode OPCODE_15 { 0: ArmStoreMemory::stfs_p({{ Mem.sf = Fd.sf; }}, {{ EA = Rn + disp8; }}); 1: ArmMacroFPAOp::stfd_p({{ }}); } 0x11,0x19: decode OPCODE_15 { 0: ArmLoadMemory::ldfs_p({{ Fd.sf = Mem.sf; }}, {{ EA = Rn + disp8; }}); 1: ArmMacroFPAOp::ldfd_p({{ }}); } 0x12,0x1a: decode OPCODE_15 { 0: ArmStoreMemory::stfs_pw({{ Mem.sf = Fd.sf; Rn = Rn + disp8; }}, {{ EA = Rn + disp8; }}); 1: ArmMacroFPAOp::stfd_pw({{ }}); } 0x13,0x1b: decode OPCODE_15 { 0: ArmLoadMemory::ldfs_pw({{ Fd.sf = Mem.sf; Rn = Rn + disp8; }}, {{ EA = Rn + disp8; }}); 1: ArmMacroFPAOp::ldfd_pw({{ }}); } 0x14,0x1c: decode OPCODE_15 { 0: ArmMacroFPAOp::stfe_pn({{ }}); } 0x15,0x1d: decode OPCODE_15 { 0: ArmMacroFPAOp::ldfe_pn({{ }}); } 0x16,0x1e: decode OPCODE_15 { 0: ArmMacroFPAOp::stfe_pnw({{ }}); } 0x17,0x1f: decode OPCODE_15 { 0: ArmMacroFPAOp::ldfe_pnw({{ }}); } } 0x2: decode PUNWL { // could really just decode as a single instruction 0x00,0x04,0x08,0x0c: ArmMacroFMOp::sfm_({{ }}); 0x01,0x05,0x09,0x0d: ArmMacroFMOp::lfm_({{ }}); 0x02,0x06,0x0a,0x0e: ArmMacroFMOp::sfm_w({{ }}); 0x03,0x07,0x0b,0x0f: ArmMacroFMOp::lfm_w({{ }}); 0x10,0x14,0x18,0x1c: ArmMacroFMOp::sfm_p({{ }}); 0x11,0x15,0x19,0x1d: ArmMacroFMOp::lfm_p({{ }}); 0x12,0x16,0x1a,0x1e: ArmMacroFMOp::sfm_pw({{ }}); 0x13,0x17,0x1b,0x1f: ArmMacroFMOp::lfm_pw({{ }}); } } 0x7: decode OPCODE_24 { 0: decode CPNUM { // Coprocessor Instructions 0x1: decode OPCODE_4 { format FloatOp { // Basic FPA Instructions 0: decode OPCODE_23_20 { 0x0: decode OPCODE_15 { 0: adf({{ Fd.sf = Fn.sf + Fm.sf; }}); 1: mvf({{ Fd.sf = Fm.sf; }}); } 0x1: decode OPCODE_15 { 0: muf({{ Fd.sf = Fn.sf * Fm.sf; }}); 1: mnf({{ Fd.sf = -Fm.sf; }}); } 0x2: decode OPCODE_15 { 0: suf({{ Fd.sf = Fn.sf - Fm.sf; }}); 1: abs({{ Fd.sf = fabs(Fm.sf); }}); } 0x3: decode OPCODE_15 { 0: rsf({{ Fd.sf = Fm.sf - Fn.sf; }}); 1: rnd({{ Fd.sf = rint(Fm.sf); }}); } 0x4: decode OPCODE_15 { 0: dvf({{ Fd.sf = Fn.sf / Fm.sf; }}); 1: sqt({{ Fd.sf = sqrt(Fm.sf); }}); } 0x5: decode OPCODE_15 { 0: rdf({{ Fd.sf = Fm.sf / Fn.sf; }}); 1: log({{ Fd.sf = log10(Fm.sf); }}); } 0x6: decode OPCODE_15 { 0: pow({{ Fd.sf = pow(Fm.sf, Fn.sf); }}); 1: lgn({{ Fd.sf = log(Fm.sf); }}); } 0x7: decode OPCODE_15 { 0: rpw({{ Fd.sf = pow(Fn.sf, Fm.sf); }}); 1: exp({{ Fd.sf = exp(Fm.sf); }}); } 0x8: decode OPCODE_15 { 0: rmf({{ Fd.sf = drem(Fn.sf, Fm.sf); }}); 1: sin({{ Fd.sf = sin(Fm.sf); }}); } 0x9: decode OPCODE_15 { 0: fml({{ Fd.sf = Fn.sf * Fm.sf; }}); 1: cos({{ Fd.sf = cos(Fm.sf); }}); } 0xa: decode OPCODE_15 { 0: fdv({{ Fd.sf = Fn.sf / Fm.sf; }}); 1: tan({{ Fd.sf = tan(Fm.sf); }}); } 0xb: decode OPCODE_15 { 0: frd({{ Fd.sf = Fm.sf / Fn.sf; }}); 1: asn({{ Fd.sf = asin(Fm.sf); }}); } 0xc: decode OPCODE_15 { 0: pol({{ Fd.sf = atan2(Fn.sf, Fm.sf); }}); 1: acs({{ Fd.sf = acos(Fm.sf); }}); } 0xd: decode OPCODE_15 { 1: atn({{ Fd.sf = atan(Fm.sf); }}); } 0xe: decode OPCODE_15 { // Unnormalised Round 1: FailUnimpl::urd(); } 0xf: decode OPCODE_15 { // Normalise 1: FailUnimpl::nrm(); } } 1: decode OPCODE_15_12 { 0xf: decode OPCODE_23_21 { format FloatCmp { 0x4: cmf({{ Fn.df }}, {{ Fm.df }}); 0x5: cnf({{ Fn.df }}, {{ -Fm.df }}); 0x6: cmfe({{ Fn.df }}, {{ Fm.df}}); 0x7: cnfe({{ Fn.df }}, {{ -Fm.df}}); } } default: decode OPCODE_23_20 { 0x0: decode OPCODE_7 { 0: flts({{ Fn.sf = (float) Rd.sw; }}); 1: fltd({{ Fn.df = (double) Rd.sw; }}); } 0x1: decode OPCODE_7 { 0: fixs({{ Rd = (uint32_t) Fm.sf; }}); 1: fixd({{ Rd = (uint32_t) Fm.df; }}); } 0x2: wfs({{ Fpsr = Rd; }}); 0x3: rfs({{ Rd = Fpsr; }}); 0x4: FailUnimpl::wfc(); 0x5: FailUnimpl::rfc(); } } } } } format PredOp { // ARM System Call (SoftWare Interrupt) 1: swi({{ if (testPredicate(xc->readMiscReg(ArmISA::MISCREG_CPSR), condCode)) { //xc->syscall(R7); xc->syscall(IMMED_23_0); } }}); } } } } }