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authorNick Clifton <nickc@redhat.com>2015-06-28 19:14:36 +0100
committerNick Clifton <nickc@redhat.com>2015-06-28 19:14:36 +0100
commit73cb0348b296656e971c4d428aa63781e656a1c4 (patch)
treeddb71aae6c4ea1858ed6307f71451a72ff1c6919 /intl
parentee0c0c503deffb7baf900ac8e092b18bf8c1528a (diff)
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Add support for ARM v6 instructions.
* Makefile.in (SIM_EXTRA_CFLAGS): Add -lm. * armdefs.h (ARMdval, ARMfval): New types. (ARM_VFP_reg): New union. (struct ARMul_State): Add VFP_Reg and FPSCR fields. (VFP_fval, VFP_uword, VFP_sword, VFP_dval, VFP_dword): Accessor macros for the new VFP_Reg field. * armemu.c (handle_v6_insn): Add code to handle MOVW, MOVT, QADD16, QASX, QSAX, QSUB16, QADD8, QSUB8, UADD16, USUB16, UADD8, USUB8, SEL, REV, REV16, RBIT, BFC, BFI, SBFX and UBFX instructions. (handle_VFP_move): New function. (ARMul_Emulate16): Add checks for newly supported v6 instructions. Add support for VMRS, VMOV and MRC instructions. (Multiply64): Allow nRdHi == nRm and/or nRdLo == nRm when operating in v6 mode. * armemu.h (t_resolved): Define. * armsupp.c: Include math.h. (handle_VFP_xfer): New function. Handles VMOV, VSTM, VSTR, VPUSH, VSTM, VLDM and VPOP instructions. (ARMul_LDC): Test for co-processor 10 or 11 and pass call to the new handle_VFP_xfer function. (ARMul_STC): Likewise. (handle_VFP_op): New function. Handles VMLA, VMLS, VNMLA, VNMLS, VNMUL, VMUL, VADD, VSUB, VDIV, VMOV, VABS, VNEG, VSQRT, VCMP, VCMPE and VCVT instructions. (ARMul_CDP): Test for co-processor 10 or 11 and pass call to the new handle_VFP_op function. * thumbemu.c (tBIT, tBITS, ntBIT, ntBITS): New macros. (test_cond): New function. Tests a condition and returns non-zero if the condition has been met. (handle_IT_block): New function. (in_IT_block): New function. (IT_block_allow): New function. (ThumbExpandImm): New function. (handle_T2_insn): New function. Handles T2 thumb instructions. (handle_v6_thumb_insn): Add next_instr and pc parameters. (ARMul_ThumbDecode): Add support for IT blocks. Add support for v6 instructions. * wrapper.c (sim_create_inferior): Detect a thumb address and call SETT appropriately.
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