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author | Tristan Gingold <tgingold@free.fr> | 2014-11-04 20:14:19 +0100 |
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committer | Tristan Gingold <tgingold@free.fr> | 2014-11-04 20:14:19 +0100 |
commit | 9c195bf5d86d67ea5eb419ccf6e48dc153e57c68 (patch) | |
tree | 575346e529b99e26382b4a06f6ff2caa0b391ab2 /src/ortho/mcode/ortho_code-x86.adb | |
parent | 184a123f91e07c927292d67462561dc84f3a920d (diff) | |
download | ghdl-9c195bf5d86d67ea5eb419ccf6e48dc153e57c68.tar.gz ghdl-9c195bf5d86d67ea5eb419ccf6e48dc153e57c68.tar.bz2 ghdl-9c195bf5d86d67ea5eb419ccf6e48dc153e57c68.zip |
Move sources to src/ subdirectory.
Diffstat (limited to 'src/ortho/mcode/ortho_code-x86.adb')
-rw-r--r-- | src/ortho/mcode/ortho_code-x86.adb | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/ortho/mcode/ortho_code-x86.adb b/src/ortho/mcode/ortho_code-x86.adb new file mode 100644 index 000000000..175dd7e99 --- /dev/null +++ b/src/ortho/mcode/ortho_code-x86.adb @@ -0,0 +1,109 @@ +-- Mcode back-end for ortho - X86 common definitions. +-- Copyright (C) 2006 Tristan Gingold +-- +-- GHDL is free software; you can redistribute it and/or modify it under +-- the terms of the GNU General Public License as published by the Free +-- Software Foundation; either version 2, or (at your option) any later +-- version. +-- +-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY +-- WARRANTY; without even the implied warranty of MERCHANTABILITY or +-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +-- for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. +package body Ortho_Code.X86 is + function Inverse_Cc (R : O_Reg) return O_Reg is + begin + case R is + when R_Ult => + return R_Uge; + when R_Uge => + return R_Ult; + when R_Eq => + return R_Ne; + when R_Ne => + return R_Eq; + when R_Ule => + return R_Ugt; + when R_Ugt => + return R_Ule; + when R_Slt => + return R_Sge; + when R_Sge => + return R_Slt; + when R_Sle => + return R_Sgt; + when R_Sgt => + return R_Sle; + when others => + raise Program_Error; + end case; + end Inverse_Cc; + + function Get_R64_High (Reg : Regs_R64) return Regs_R32 is + begin + case Reg is + when R_Edx_Eax => + return R_Dx; + when R_Ebx_Ecx => + return R_Bx; + when R_Esi_Edi => + return R_Si; + end case; + end Get_R64_High; + + function Get_R64_Low (Reg : Regs_R64) return Regs_R32 is + begin + case Reg is + when R_Edx_Eax => + return R_Ax; + when R_Ebx_Ecx => + return R_Cx; + when R_Esi_Edi => + return R_Di; + end case; + end Get_R64_Low; + + function Ekind_Unsigned_To_Cc (Kind : OE_Kind_Cmp) return O_Reg is + begin + case Kind is + when OE_Eq => + return R_Eq; + when OE_Neq => + return R_Ne; + when OE_Lt => + return R_Ult; + when OE_Le => + return R_Ule; + when OE_Gt => + return R_Ugt; + when OE_Ge => + return R_Uge; + end case; + end Ekind_Unsigned_To_Cc; + + function Ekind_Signed_To_Cc (Kind : OE_Kind_Cmp) return O_Reg is + begin + case Kind is + when OE_Eq => + return R_Eq; + when OE_Neq => + return R_Ne; + when OE_Lt => + return R_Slt; + when OE_Le => + return R_Sle; + when OE_Gt => + return R_Sgt; + when OE_Ge => + return R_Sge; + end case; + end Ekind_Signed_To_Cc; + +end Ortho_Code.X86; + + |