1 /* SPDX-License-Identifier: MIT */
3 * Define i386 target-specific operand constraints.
4 * Copyright (c) 2021 Linaro
9 * Define constraint letters for register sets:
10 * REGS(letter, register_mask)
12 REGS('a', 1u << TCG_REG_EAX
)
13 REGS('b', 1u << TCG_REG_EBX
)
14 REGS('c', 1u << TCG_REG_ECX
)
15 REGS('d', 1u << TCG_REG_EDX
)
16 REGS('S', 1u << TCG_REG_ESI
)
17 REGS('D', 1u << TCG_REG_EDI
)
19 REGS('r', ALL_GENERAL_REGS
)
20 REGS('x', ALL_VECTOR_REGS
)
21 REGS('q', ALL_BYTEL_REGS
) /* regs that can be used as a byte operand */
22 REGS('Q', ALL_BYTEH_REGS
) /* regs with a second byte (e.g. %ah) */
23 REGS('L', ALL_GENERAL_REGS
& ~SOFTMMU_RESERVE_REGS
) /* qemu_ld/st */
24 REGS('s', ALL_BYTEL_REGS
& ~SOFTMMU_RESERVE_REGS
) /* qemu_st8_i32 data */
27 * Define constraint letters for constants:
28 * CONST(letter, TCG_CT_CONST_* bit set)
30 CONST('e', TCG_CT_CONST_S32
)
31 CONST('I', TCG_CT_CONST_I32
)
32 CONST('W', TCG_CT_CONST_WSZ
)
33 CONST('Z', TCG_CT_CONST_U32
)
