98 lines
2.1 KiB
C
98 lines
2.1 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 <in/instrs.h>
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|
|
IMPL_START_1(jmp) { R(RIP) = v1; } IMPL_END;
|
|
IMPL_START_1(loop) {
|
|
if (R(RCX) > 0) {
|
|
R(RCX)--;
|
|
R(RIP) = v1;
|
|
}
|
|
}
|
|
IMPL_END;
|
|
|
|
IMPL_START_3(b) {
|
|
COMPARE_SUB(v1, v2);
|
|
|
|
if (eval_cond(ctx, ctx->cond))
|
|
R(RIP) = v3;
|
|
}
|
|
IMPL_END;
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|
|
IMPL_START_X_NOIN(lea) { v1 = p2->addr; } IMPL_OUT;
|
|
IMPL_START_2_ONLY(mov) { v1 = v2; } IMPL_OUT;
|
|
|
|
IMPL_START_2_ONLY(movsxb) { v1 = (ulong)(long)(char)(v2 & 0xFF); }IMPL_OUT;
|
|
IMPL_START_2_ONLY(movsxw) { v1 = (ulong)(long)(short)(v2 & 0xFFFF); }IMPL_OUT;
|
|
IMPL_START_2_ONLY(movsxl) { v1 = (ulong)(long)(int)(v2 & 0xFFFFFFFF); }IMPL_OUT;
|
|
|
|
IMPL_START_X_NOIN(movzx) { DECVZX(v2, p2); v1 = v2; } IMPL_OUT;
|
|
|
|
IMPL_START_2(xchg) { ulong t = v1; v1 = v2; v2 = t; } IMPL_OUT_2;
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|
|
//
|
|
// Stack manipulation instructions
|
|
//
|
|
|
|
IMPL_START_1(push) {
|
|
R(RSP) -= 8;
|
|
writemem(ctx, v1, R(RSP), 8);
|
|
} IMPL_END;
|
|
|
|
IMPL_START_1(pop) {
|
|
v1 = readmem(ctx, R(RSP), 8);
|
|
R(RSP) += 8;
|
|
} IMPL_OUT;
|
|
|
|
/*
|
|
IMPL_START_1(call) {
|
|
R(RSP) -= 8;
|
|
writemem(ctx, R(RIP), R(RSP), 8);
|
|
R(RIP) = v1;
|
|
} IMPL_END;
|
|
*/
|
|
|
|
IMPL_START_1(call) {
|
|
R(RSP) -= 8;
|
|
writemem(ctx, R(RIP), R(RSP), 8);
|
|
R(RIP) = v1;
|
|
|
|
if (p2)
|
|
{
|
|
DECV(v2, p2);
|
|
ax0 = v2;
|
|
|
|
if (p3)
|
|
{
|
|
DECV(v3, p3);
|
|
ax1 = v3;
|
|
}
|
|
}
|
|
|
|
} IMPL_END;
|
|
|
|
IMPL_START_0(ret) {
|
|
R(RIP) = readmem(ctx, R(RSP), 8); R(RSP) += 8;
|
|
} IMPL_END;
|
|
|
|
IMPL_START_1(enter) {
|
|
writemem(ctx, R(RBP), R(RSP) - 8, 8);
|
|
R(RBP) = R(RSP) - 8;
|
|
R(RSP) -= (v1 + 1) * 8;
|
|
} IMPL_END;
|
|
|
|
IMPL_START_0(leave) {
|
|
R(RSP) = R(RBP) + 8;
|
|
R(RBP) = readmem(ctx, R(RBP), 8);
|
|
} IMPL_END;
|
|
|
|
//----------------------------------------------------------------------------//
|
|
|