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mirror of https://gitlab.os-k.eu/os-k-team/kvisc.git synced 2023-08-25 14:05:46 +02:00
kvisc/vm/in/instrs.h
2019-07-09 21:02:26 +02:00

104 lines
4.8 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.
#include <pc/arch.h>
#include <in/flags.h>
#include <in/arch_i.h>
//----------------------------------------------------------------------------//
#define DECV(v, p) \
ulong v; \
GETV(v, p)
#define GETV(v, p) \
if (ACC_FMT_IS_MEM(p->type)) \
v = readmem(ctx, p->addr, p->mlen); \
else v = p->val
#define DECVZX(v, p) \
ulong v; \
GETVZX(v, p)
#define GETVZX(v, p) \
if (ACC_FMT_IS_MEM(p->type)) \
v = readmemzx(ctx, p->addr, p->mlen); \
else v = p->val
//----------------------------------------------------------------------------//
#define IMPL_START_0(name) \
uint i_##name(ctx_t *ctx, acc_t *p1, acc_t *p2, acc_t *p3, \
ulong *r1, ulong *r2, ulong *r3) \
{
#define IMPL_START_1(name) \
IMPL_START_0(name) \
DECV(v1, p1);
#define IMPL_START_2(name) \
IMPL_START_1(name) \
DECV(v2, p2);
#define IMPL_START_2_ONLY(name) \
IMPL_START_0(name) \
ulong v1; \
DECV(v2, p2);
#define IMPL_START_3(name) \
IMPL_START_2(name) \
DECV(v3, p3);
//----------------------------------------------------------------------------//
#define IMPL_END \
return 0; \
}
#define IMPL_OUT \
*r1 = v1; \
return 1; \
}
#define IMPL_OUT_ZSF \
SET_ZSF(v1); \
IMPL_OUT
#define IMPL_OUT_2 \
*r1 = v1; \
*r2 = v2; \
return 2; \
}
#define IMPL_OUT_3 \
*r1 = v1; \
*r2 = v2; \
*r3 = v3; \
return 3; \
}
//----------------------------------------------------------------------------//
#define ALU_GET_SRCS() \
ulong src1, src2; \
if (p3) { \
src1 = v2; \
GETV(src2, p3); \
} else { \
src1 = v1; \
src2 = v2; \
}
//----------------------------------------------------------------------------//
#define CHK_SUPERV() \
do { \
if ((cr0 & UF) > 0) { \
_except(ctx, E_SYS, "Supervisor-only INSTR"); \
} \
} while (0)
//----------------------------------------------------------------------------//