/usr/include/fizmo/interpreter/zpu.h is in libfizmo-dev 0.7.15-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /* zpu.h
*
* This file is part of fizmo.
*
* Copyright (c) 2009-2017 Christoph Ender.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef zpu_h_INCLUDED
#define zpu_h_INCLUDED
#include <inttypes.h>
#define OPERAND_TYPE_LARGE_CONSTANT 0
#define OPERAND_TYPE_SMALL_CONSTANT 1
#define OPERAND_TYPE_VARIABLE 2
#define INSTRUCTION_2OP 0x00
#define INSTRUCTION_1OP 0x20
#define INSTRUCTION_0OP 0x30
#define INSTRUCTION_VAR 0x40
#define INSTRUCTION_EXT 0x60
#define INSTRUCTION_UNDEF 0xff
#define INTERPRETER_QUIT_NONE 0
#define INTERPRETER_QUIT_ROUTINE 1
#define INTERPRETER_QUIT_ALL 2
#define INTERPRETER_QUIT_SAVE_BEFORE_READ 3
#define INTERPRETER_QUIT_RESTART 4
#ifndef zpu_c_INCLUDED
extern uint8_t *z_mem;
/*@dependent@*/ extern uint8_t *pc;
extern uint16_t op[8];
extern uint8_t number_of_operands;
extern uint8_t number_of_locals_from_function_call;
extern uint8_t z_res_var;
extern uint8_t *current_instruction_location;
extern int zpu_step_number;
extern uint16_t start_interrupt_routine;
// Splint doesn't recognize that "terminate_interpreter" is used by routine.c.
/*@-exportlocal@*/
extern int terminate_interpreter;
/*@+exportlocal@*/
#endif // zpu_c_INCLUDED
void parse_opcode(uint8_t *z_instr, uint8_t *z_instr_form,
uint8_t *result_number_of_operands, uint8_t **instr_ptr);
void interpret_from_address(uint32_t start_address);
void interpret_resume();
uint16_t interpret_from_call(uint32_t routine_address);
void interpret_from_call_without_result(uint32_t routine_address);
void read_z_result_variable(void);
uint32_t get_packed_routinecall_address(uint16_t packed_address);
uint32_t get_packed_string_address(uint16_t packed_address);
void evaluate_branch(uint8_t test_result);
void parse_branch_bytes(void);
uint16_t load_word(uint8_t *ptr);
void store_word(uint8_t *dest, uint16_t data);
void init_opcode_functions(void);
void dump_stack(void);
void dump_locals(void);
#ifdef ENABLE_TRACING
void dump_dynamic_memory_to_tracelog();
#endif // ENABLE_TRACING
#endif // zpu_h_INCLUDED
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