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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Generate .byte code for some instructions not supported by old
* binutils.
*/
#ifndef X86_ASM_INST_H
#define X86_ASM_INST_H
#ifdef __ASSEMBLY__
#define REG_NUM_INVALID 100
#define REG_TYPE_R32 0
#define REG_TYPE_R64 1
#define REG_TYPE_INVALID 100
.macro R32_NUM opd r32
\opd = REG_NUM_INVALID
.ifc \r32,%eax
\opd = 0
.endif
.ifc \r32,%ecx
\opd = 1
.endif
.ifc \r32,%edx
\opd = 2
.endif
.ifc \r32,%ebx
\opd = 3
.endif
.ifc \r32,%esp
\opd = 4
.endif
.ifc \r32,%ebp
\opd = 5
.endif
.ifc \r32,%esi
\opd = 6
.endif
.ifc \r32,%edi
\opd = 7
.endif
#ifdef CONFIG_X86_64
.ifc \r32,%r8d
\opd = 8
.endif
.ifc \r32,%r9d
\opd = 9
.endif
.ifc \r32,%r10d
\opd = 10
.endif
.ifc \r32,%r11d
\opd = 11
.endif
.ifc \r32,%r12d
\opd = 12
.endif
.ifc \r32,%r13d
\opd = 13
.endif
.ifc \r32,%r14d
\opd = 14
.endif
.ifc \r32,%r15d
\opd = 15
.endif
#endif
.endm
.macro R64_NUM opd r64
\opd = REG_NUM_INVALID
#ifdef CONFIG_X86_64
.ifc \r64,%rax
\opd = 0
.endif
.ifc \r64,%rcx
\opd = 1
.endif
.ifc \r64,%rdx
\opd = 2
.endif
.ifc \r64,%rbx
\opd = 3
.endif
.ifc \r64,%rsp
\opd = 4
.endif
.ifc \r64,%rbp
\opd = 5
.endif
.ifc \r64,%rsi
\opd = 6
.endif
.ifc \r64,%rdi
\opd = 7
.endif
.ifc \r64,%r8
\opd = 8
.endif
.ifc \r64,%r9
\opd = 9
.endif
.ifc \r64,%r10
\opd = 10
.endif
.ifc \r64,%r11
\opd = 11
.endif
.ifc \r64,%r12
\opd = 12
.endif
.ifc \r64,%r13
\opd = 13
.endif
.ifc \r64,%r14
\opd = 14
.endif
.ifc \r64,%r15
\opd = 15
.endif
#endif
.endm
.macro REG_TYPE type reg
R32_NUM reg_type_r32 \reg
R64_NUM reg_type_r64 \reg
.if reg_type_r64 <> REG_NUM_INVALID
\type = REG_TYPE_R64
.elseif reg_type_r32 <> REG_NUM_INVALID
\type = REG_TYPE_R32
.else
\type = REG_TYPE_INVALID
.endif
.endm
.macro PFX_REX opd1 opd2 W=0
.if ((\opd1 | \opd2) & 8) || \W
.byte 0x40 | ((\opd1 & 8) >> 3) | ((\opd2 & 8) >> 1) | (\W << 3)
.endif
.endm
.macro MODRM mod opd1 opd2
.byte \mod | (\opd1 & 7) | ((\opd2 & 7) << 3)
.endm
.macro RDPID opd
REG_TYPE rdpid_opd_type \opd
.if rdpid_opd_type == REG_TYPE_R64
R64_NUM rdpid_opd \opd
.else
R32_NUM rdpid_opd \opd
.endif
.byte 0xf3
.if rdpid_opd > 7
PFX_REX rdpid_opd 0
.endif
.byte 0x0f, 0xc7
MODRM 0xc0 rdpid_opd 0x7
.endm
#endif
#endif
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