| /* |
| * Tiny Code Generator for QEMU |
| * |
| * Copyright (c) 2009, 2011 Stefan Weil |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| /* |
| * This code implements a TCG which does not generate machine code for some |
| * real target machine but which generates virtual machine code for an |
| * interpreter. Interpreted pseudo code is slow, but it works on any host. |
| * |
| * Some remarks might help in understanding the code: |
| * |
| * "target" or "TCG target" is the machine which runs the generated code. |
| * This is different to the usual meaning in QEMU where "target" is the |
| * emulated machine. So normally QEMU host is identical to TCG target. |
| * Here the TCG target is a virtual machine, but this virtual machine must |
| * use the same word size like the real machine. |
| * Therefore, we need both 32 and 64 bit virtual machines (interpreter). |
| */ |
| |
| #if !defined(TCG_TARGET_H) |
| #define TCG_TARGET_H |
| |
| #include "config-host.h" |
| |
| #define TCG_TARGET_INTERPRETER 1 |
| #define TCG_TARGET_INSN_UNIT_SIZE 1 |
| |
| #if UINTPTR_MAX == UINT32_MAX |
| # define TCG_TARGET_REG_BITS 32 |
| #elif UINTPTR_MAX == UINT64_MAX |
| # define TCG_TARGET_REG_BITS 64 |
| #else |
| # error Unknown pointer size for tci target |
| #endif |
| |
| #ifdef CONFIG_DEBUG_TCG |
| /* Enable debug output. */ |
| #define CONFIG_DEBUG_TCG_INTERPRETER |
| #endif |
| |
| /* Optional instructions. */ |
| |
| #define TCG_TARGET_HAS_bswap16_i32 1 |
| #define TCG_TARGET_HAS_bswap32_i32 1 |
| #define TCG_TARGET_HAS_div_i32 1 |
| #define TCG_TARGET_HAS_rem_i32 1 |
| #define TCG_TARGET_HAS_ext8s_i32 1 |
| #define TCG_TARGET_HAS_ext16s_i32 1 |
| #define TCG_TARGET_HAS_ext8u_i32 1 |
| #define TCG_TARGET_HAS_ext16u_i32 1 |
| #define TCG_TARGET_HAS_andc_i32 0 |
| #define TCG_TARGET_HAS_deposit_i32 1 |
| #define TCG_TARGET_HAS_eqv_i32 0 |
| #define TCG_TARGET_HAS_nand_i32 0 |
| #define TCG_TARGET_HAS_nor_i32 0 |
| #define TCG_TARGET_HAS_neg_i32 1 |
| #define TCG_TARGET_HAS_not_i32 1 |
| #define TCG_TARGET_HAS_orc_i32 0 |
| #define TCG_TARGET_HAS_rot_i32 1 |
| #define TCG_TARGET_HAS_movcond_i32 0 |
| #define TCG_TARGET_HAS_muls2_i32 0 |
| #define TCG_TARGET_HAS_muluh_i32 0 |
| #define TCG_TARGET_HAS_mulsh_i32 0 |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| #define TCG_TARGET_HAS_trunc_shr_i32 0 |
| #define TCG_TARGET_HAS_bswap16_i64 1 |
| #define TCG_TARGET_HAS_bswap32_i64 1 |
| #define TCG_TARGET_HAS_bswap64_i64 1 |
| #define TCG_TARGET_HAS_deposit_i64 1 |
| #define TCG_TARGET_HAS_div_i64 0 |
| #define TCG_TARGET_HAS_rem_i64 0 |
| #define TCG_TARGET_HAS_ext8s_i64 1 |
| #define TCG_TARGET_HAS_ext16s_i64 1 |
| #define TCG_TARGET_HAS_ext32s_i64 1 |
| #define TCG_TARGET_HAS_ext8u_i64 1 |
| #define TCG_TARGET_HAS_ext16u_i64 1 |
| #define TCG_TARGET_HAS_ext32u_i64 1 |
| #define TCG_TARGET_HAS_andc_i64 0 |
| #define TCG_TARGET_HAS_eqv_i64 0 |
| #define TCG_TARGET_HAS_nand_i64 0 |
| #define TCG_TARGET_HAS_nor_i64 0 |
| #define TCG_TARGET_HAS_neg_i64 1 |
| #define TCG_TARGET_HAS_not_i64 1 |
| #define TCG_TARGET_HAS_orc_i64 0 |
| #define TCG_TARGET_HAS_rot_i64 1 |
| #define TCG_TARGET_HAS_movcond_i64 0 |
| #define TCG_TARGET_HAS_muls2_i64 0 |
| #define TCG_TARGET_HAS_add2_i32 0 |
| #define TCG_TARGET_HAS_sub2_i32 0 |
| #define TCG_TARGET_HAS_mulu2_i32 0 |
| #define TCG_TARGET_HAS_add2_i64 0 |
| #define TCG_TARGET_HAS_sub2_i64 0 |
| #define TCG_TARGET_HAS_mulu2_i64 0 |
| #define TCG_TARGET_HAS_muluh_i64 0 |
| #define TCG_TARGET_HAS_mulsh_i64 0 |
| #else |
| #define TCG_TARGET_HAS_mulu2_i32 1 |
| #endif /* TCG_TARGET_REG_BITS == 64 */ |
| |
| /* Number of registers available. |
| For 32 bit hosts, we need more than 8 registers (call arguments). */ |
| /* #define TCG_TARGET_NB_REGS 8 */ |
| #define TCG_TARGET_NB_REGS 16 |
| /* #define TCG_TARGET_NB_REGS 32 */ |
| |
| /* List of registers which are used by TCG. */ |
| typedef enum { |
| TCG_REG_R0 = 0, |
| TCG_REG_R1, |
| TCG_REG_R2, |
| TCG_REG_R3, |
| TCG_REG_R4, |
| TCG_REG_R5, |
| TCG_REG_R6, |
| TCG_REG_R7, |
| #if TCG_TARGET_NB_REGS >= 16 |
| TCG_REG_R8, |
| TCG_REG_R9, |
| TCG_REG_R10, |
| TCG_REG_R11, |
| TCG_REG_R12, |
| TCG_REG_R13, |
| TCG_REG_R14, |
| TCG_REG_R15, |
| #if TCG_TARGET_NB_REGS >= 32 |
| TCG_REG_R16, |
| TCG_REG_R17, |
| TCG_REG_R18, |
| TCG_REG_R19, |
| TCG_REG_R20, |
| TCG_REG_R21, |
| TCG_REG_R22, |
| TCG_REG_R23, |
| TCG_REG_R24, |
| TCG_REG_R25, |
| TCG_REG_R26, |
| TCG_REG_R27, |
| TCG_REG_R28, |
| TCG_REG_R29, |
| TCG_REG_R30, |
| TCG_REG_R31, |
| #endif |
| #endif |
| /* Special value UINT8_MAX is used by TCI to encode constant values. */ |
| TCG_CONST = UINT8_MAX |
| } TCGReg; |
| |
| #define TCG_AREG0 (TCG_TARGET_NB_REGS - 2) |
| |
| /* Used for function call generation. */ |
| #define TCG_REG_CALL_STACK (TCG_TARGET_NB_REGS - 1) |
| #define TCG_TARGET_CALL_STACK_OFFSET 0 |
| #define TCG_TARGET_STACK_ALIGN 16 |
| |
| void tci_disas(uint8_t opc); |
| |
| uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr); |
| #define tcg_qemu_tb_exec tcg_qemu_tb_exec |
| |
| static inline void flush_icache_range(uintptr_t start, uintptr_t stop) |
| { |
| } |
| |
| #endif /* TCG_TARGET_H */ |