mirror of
https://gitlab.os-k.eu/os-k-team/kvisc.git
synced 2023-08-25 14:05:46 +02:00
96 lines
1.6 KiB
C
96 lines
1.6 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.
|
|
|
|
enum
|
|
{
|
|
CD_NONE,
|
|
|
|
CD_C, CD_O, CD_Z, CD_S, CD_P,
|
|
CD_A, CD_AE, CD_B, CD_BE,
|
|
CD_G, CD_GE, CD_L, CD_LE,
|
|
CD_CXZ, COND_RES,
|
|
};
|
|
|
|
enum
|
|
{
|
|
PREF_LOCK = (1 << 15),
|
|
PREF_NOMORE = (1 << 14),
|
|
|
|
PREF_REP = (1 << 15),
|
|
|
|
BITS_COND = (1 << 14) | (1 << 13) | (1 << 12)
|
|
| (1 << 11) | (1 << 10),
|
|
|
|
COND_SHIFT = 8,
|
|
|
|
Fx_MASK = 0x1F,
|
|
F1_SHIFT = 5,
|
|
};
|
|
|
|
enum
|
|
{
|
|
A_NONE = 0b00000,
|
|
A_REG = 0b00001,
|
|
A_IMM64 = 0b00010,
|
|
|
|
AM_START = 0b00100,
|
|
|
|
AM_IMM64 = 0b00,
|
|
AM_RR = 0b01,
|
|
AM_RRI = 0b10,
|
|
AM_RRII = 0b11,
|
|
|
|
AM_8ACC = 0b00100,
|
|
AM_16ACC = 0b01000,
|
|
AM_32ACC = 0b01100,
|
|
AM_64ACC = 0b10000,
|
|
|
|
AM_MLEN_MASK = 0b11100,
|
|
AM_MFMT_MASK = 0b00011,
|
|
};
|
|
|
|
#define ACC_FMT_IS_MEM(x) ((x) >= AM_START && (x) <= (AM_64ACC|AM_RRII))
|
|
|
|
#define ACC_IS_MEM(x) (ACC_FMT_IS_MEM((x)->type))
|
|
|
|
struct acc_t
|
|
{
|
|
uint type;
|
|
ulong val;
|
|
|
|
// A_REG
|
|
ulong reg;
|
|
|
|
// AM_...
|
|
ulong addr;
|
|
uint mlen;
|
|
|
|
};
|
|
|
|
enum { NOPRM, P_REG, P_IMM, P_MEM=4 };
|
|
|
|
struct instr_t
|
|
{
|
|
char *name;
|
|
char *full;
|
|
|
|
uint prm1;
|
|
uint prm2;
|
|
|
|
bool (*func)(ctx_t *, acc_t *, acc_t *, ulong *);
|
|
};
|
|
|
|
void exec_instr(ctx_t *ctx,
|
|
instr_t *in,
|
|
acc_t *p1,
|
|
acc_t *p2,
|
|
bool lock,
|
|
bool rep,
|
|
uint cond,
|
|
ulong pc);
|
|
|
|
void extract_param(ctx_t *ctx,
|
|
acc_t *p,
|
|
uchar fmt);
|
|
|