24531904_j

mix
操作 : if (PR[qp]) {
check_target_register(r 1);
}
割り込み : 無効操作フ ォ ル ト
if (one_byte_form) { // one-byte elements
x[0] = GR[r 2]{7:0}; y[0] = GR[r 3]{7:0};
x[1] = GR[r 2 ]{15:8}; y[1] = GR[r 3 ]{15:8};
x[2] = GR[r 2 ]{23:16};y[2] = GR[r 3 ]{23:16};
x[3] = GR[r 2 ]{31:24};y[3] = GR[r 3 ]{31:24};
x[4] = GR[r 2 ]{39:32};y[4] = GR[r 3 ]{39:32};
x[5] = GR[r 2 ]{47:40};y[5] = GR[r 3 ]{47:40};
x[6] = GR[r 2 ]{55:48};y[6] = GR[r 3 ]{55:48};
x[7] = GR[r 2 ]{63:56};y[7] = GR[r 3 ]{63:56};
if (left_form)
GR[r 1 ] = concatenate8(x[7], y[7], x[5], y[5],
x[3], y[3], x[1], y[1]);
else // right_form
GR[r 1 ] = concatenate8(x[6], y[6], x[4], y[4],
x[2], y[2], x[0], y[0]);
} else if (two_byte_form) { // two-byte elements
x[0] = GR[r 2 ]{15:0}; y[0] = GR[r 3 ]{15:0};
x[1] = GR[r 2 ]{31:16};y[1] = GR[r 3 ]{31:16};
x[2] = GR[r 2 ]{47:32};y[2] = GR[r 3 ]{47:32};
x[3] = GR[r 2 ]{63:48};y[3] = GR[r 3 ]{63:48};
if (left_form)
GR[r 1 ] = concatenate4(x[3], y[3], x[1], y[1]);
else // right_form
GR[r 1 ] = concatenate4(x[2], y[2], x[0], y[0]);
} else { // four-byte elements
x[0] = GR[r 2 ]{31:0}; y[0] = GR[r 3 ]{31:0};
x[1] = GR[r 2]{63:32};y[1] = GR[r 3]{63:32};
if (left_form)
GR[r1] = concatenate2(x[1], y[1]);
else // right_form
GR[r1 ] = concatenate2(x[0], y[0]);
}
GR[r1 ].nat = GR[r2 ].nat || GR[r3 ].nat;
第 3 巻 : 命令リファレンス 3:153