Archipelago » qemu

********* 64-bit target on 32-bit host support

The following opcodes are internal to TCG.  Thus they are to be implemented by

32-bit host code generators, but are not to be emitted by guest translators.

They are emitted as needed by inline functions within "tcg-op.h".

* brcond2_i32 cond, t0_low, t0_high, t1_low, t1_high, label

Similar to brcond, except that the 64-bit values T0 and T1

are formed from two 32-bit arguments.

* add2_i32 t0_low, t0_high, t1_low, t1_high, t2_low, t2_high

* sub2_i32 t0_low, t0_high, t1_low, t1_high, t2_low, t2_high

Similar to add/sub, except that the 64-bit inputs T1 and T2 are

formed from two 32-bit arguments, and the 64-bit output T0

is returned in two 32-bit outputs.

* mulu2_i32 t0_low, t0_high, t1, t2

Similar to mul, except two 32-bit (unsigned) inputs T1 and T2 yielding

the full 64-bit product T0.  The later is returned in two 32-bit outputs.