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kvisc/vm/pc/arch.h
2019-07-17 20:26:03 +02:00

115 lines
2.2 KiB
C

// The OS/K Team licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#ifndef _ARCH_H
#define _ARCH_H
//#define NDEBUG 1
#define dev_t stddev_t
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <assert.h>
#include <stdarg.h>
#include <limits.h>
#undef dev_t
#define static_assert _Static_assert
#define alignof _Alignof
typedef unsigned int bool;
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef struct reg_t reg_t;
typedef struct ctx_t ctx_t;
typedef struct instr_t instr_t;
typedef struct acc_t acc_t;
typedef struct arch_t arch_t;
typedef struct dev_t dev_t;
void logerr(const char *, ...);
void vlog(const char *, va_list);
// void trace(const char *, ...);
#define trace printf
#define KARCH_MAJOR 0
#define KARCH_MINOR 1
#define KARCH_REVIS 0
struct ctx_t
{
// Array of NREGS ulong's
ulong *rf;
// Register (names & types) table
reg_t *r;
// Instruction table
instr_t *i;
// Instruction currently executing
instr_t *cur_in;
// Starting address of instruction currently executing
ulong cur_pc;
// Memory and memory size
ushort *mp;
ulong mz;
// Read next instruction
ushort (*get)(ctx_t *ctx);
// Devices list head
dev_t *dh;
// Instructions executed
ulong ninstrs; // totally
ulong ni_thisfr; // this frame
// Last COND field
uint cond;
// Dumpinstr switch
bool dumpsw;
};
#define R(X) ctx->rf[X]
void die(int code) __attribute__((__noreturn__));
void dumpregs(ctx_t *);
void dumpinstr(ctx_t *, ulong, uint, ushort, acc_t *, acc_t *);
void dumpmem(ctx_t *, ulong, ulong);
void decode(ctx_t *ctx);
void enable_stdin_echoing(void);
void disable_stdin_echoing(void);
extern void do_hlt(ctx_t *ctx);
#include <pc/mem.h>
#include <pc/sym.h>
#include <pc/regs.h>
#include <pc/decode.h>
#include <pc/except.h>
#include <in/arch_i.h>
extern ctx_t main_ctx;
extern reg_t arch_r[NREGS];
extern instr_t arch_i[NINSTRS];
extern size_t rfs_current_idx;
#endif