97 lines
1.5 KiB
C
97 lines
1.5 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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enum
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{
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CD_NONE,
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CD_C,
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CD_O,
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CD_Z,
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CD_S,
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CD_P,
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CD_BE,
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CD_L,
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CD_LE,
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CD_AXZ,
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CD_BXZ,
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CD_CXZ,
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CD_DXZ,
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};
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enum
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{
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SUFF_REP = (1 << 7),
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SUFF_LOCK = (1 << 6),
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SUFF_COND = 0b00011111,
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};
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enum
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{
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A_NONE = 0,
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A_REG = 3,
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A_IMM8 = 1,
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A_IMM16 = 2,
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A_IMM32 = 4,
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A_IMM64 = 8,
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AM_RR = 0xF0,
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AM_RRI = 0xF1,
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AM_RRII = 0xF2,
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};
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#define ACC_FMT_IS_MEM(x) (((x) & 0xF0) != 0)
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#define ACC_IS_MEM(p) ACC_FMT_IS_MEM((p)->type)
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struct acc_t
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{
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uint type;
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ulong val;
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// A_REG
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uchar reg;
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// AM_...
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ulong addr;
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uint mlen;
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// For instruction dumping ONLY
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uchar reg1, reg2;
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char imm1;
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long imm2;
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};
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enum { NOPRM, P_REG, P_IMM, P_MEM=4 };
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struct instr_t
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{
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char *name;
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char *full;
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uint prm1;
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uint prm2;
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uint prm3;
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uint (*func)(ctx_t *, acc_t *, acc_t *, acc_t *,
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ulong *, ulong *, ulong *);
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};
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bool eval_cond(ctx_t *ctx, uint cond);
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void exec_instr(ctx_t *ctx,
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instr_t *in,
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acc_t *p1,
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acc_t *p2,
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acc_t *p3,
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bool lock,
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bool rep);
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void dump_instr(ctx_t *ctx,
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instr_t *in,
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acc_t *p1,
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acc_t *p2,
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acc_t *p3,
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bool lock,
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bool rep);
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