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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/pc/jumps.c
2019-05-16 19:59:14 +02:00

68 lines
1.0 KiB
C

// The OS/K Team licences this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#include "instrs.h"
#include "arch_i.h"
IMPL_START_1(jmp)
{
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(jz)
{
if (ctx->r[FLG].val & ZF)
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(jnz)
{
if (!(ctx->r[FLG].val & ZF))
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(je)
{
if (ctx->r[FLG].val & ZF)
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(jne)
{
if (!(ctx->r[FLG].val & ZF))
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(ja)
{
if (!(ctx->r[FLG].val & ZF) && !(ctx->r[FLG].val & CF))
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(jae)
{
if (!(ctx->r[FLG].val & CF))
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(jb)
{
if (!(ctx->r[FLG].val & ZF) && ctx->r[FLG].val & CF)
ctx->r[RIP].val = v1;
}
IMPL_END;
IMPL_START_1(jbe)
{
if (ctx->r[FLG].val & CF)
ctx->r[RIP].val = v1;
}
IMPL_END;