+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
- * Copyright (C) 2014 Paul Cercueil <paul@crapouillou.net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
+ * Copyright (C) 2014-2021 Paul Cercueil <paul@crapouillou.net>
*/
#ifndef __DISASSEMBLER_H__
#define __packed __attribute__((packed))
#endif
-#define LIGHTREC_DIRECT_IO (1 << 0)
-#define LIGHTREC_NO_INVALIDATE (1 << 1)
-#define LIGHTREC_NO_DS (1 << 2)
-#define LIGHTREC_SMC (1 << 3)
-#define LIGHTREC_EMULATE_BRANCH (1 << 4)
-#define LIGHTREC_LOCAL_BRANCH (1 << 5)
-#define LIGHTREC_HW_IO (1 << 6)
-#define LIGHTREC_MULT32 (1 << 7)
+#define BIT(x) (1ULL << (x))
+
+/* Flags for all opcodes */
+#define LIGHTREC_NO_DS BIT(0)
+#define LIGHTREC_UNLOAD_RS BIT(1)
+#define LIGHTREC_UNLOAD_RT BIT(2)
+#define LIGHTREC_UNLOAD_RD BIT(3)
+#define LIGHTREC_SYNC BIT(4)
+
+/* Flags for load/store opcodes */
+#define LIGHTREC_SMC BIT(5)
+#define LIGHTREC_NO_INVALIDATE BIT(6)
+#define LIGHTREC_NO_MASK BIT(7)
+
+/* I/O mode for load/store opcodes */
+#define LIGHTREC_IO_MODE_LSB 8
+#define LIGHTREC_IO_MODE(x) ((x) << LIGHTREC_IO_MODE_LSB)
+#define LIGHTREC_IO_UNKNOWN 0x0
+#define LIGHTREC_IO_DIRECT 0x1
+#define LIGHTREC_IO_HW 0x2
+#define LIGHTREC_IO_RAM 0x3
+#define LIGHTREC_IO_BIOS 0x4
+#define LIGHTREC_IO_SCRATCH 0x5
+#define LIGHTREC_IO_MASK LIGHTREC_IO_MODE(0x7)
+#define LIGHTREC_FLAGS_GET_IO_MODE(x) \
+ (((x) & LIGHTREC_IO_MASK) >> LIGHTREC_IO_MODE_LSB)
+
+/* Flags for branches */
+#define LIGHTREC_EMULATE_BRANCH BIT(5)
+#define LIGHTREC_LOCAL_BRANCH BIT(6)
+
+/* Flags for div/mult opcodes */
+#define LIGHTREC_NO_LO BIT(5)
+#define LIGHTREC_NO_HI BIT(6)
+#define LIGHTREC_NO_DIV_CHECK BIT(7)
struct block;
OP_LWC2 = 0x32,
OP_SWC2 = 0x3a,
- OP_META_REG_UNLOAD = 0x11,
-
- OP_META_BEQZ = 0x14,
- OP_META_BNEZ = 0x15,
-
OP_META_MOV = 0x16,
- OP_META_SYNC = 0x17,
+
+ OP_META_EXTC = 0x17,
+ OP_META_EXTS = 0x18,
};
enum special_opcodes {
struct opcode_j j;
};
u16 flags;
- u16 offset;
- struct opcode *next;
};
-struct opcode * lightrec_disassemble(struct lightrec_state *state,
- const u32 *src, unsigned int *len);
-void lightrec_free_opcode_list(struct lightrec_state *state,
- struct opcode *list);
-
-unsigned int lightrec_cycles_of_opcode(union code code);
-
-void lightrec_print_disassembly(const struct block *block,
- const u32 *code, unsigned int length);
+void lightrec_print_disassembly(const struct block *block, const u32 *code);
#endif /* __DISASSEMBLER_H__ */