On Sunday, 12 November 2017 at 12:00:00 UTC, Basile B. wrote:
On Sunday, 12 November 2017 at 11:01:39 UTC, Dibyendu Majumdar
wrote:
[...]
The assembly code uses static allocation of registers, but
because of the differences in how registers are used in Win64
versus Unix X64 - different registers are assigned depending
on the architecture. dynasm makes this easy to do using
macros; e.g. below.
[...]
With above in place, the code can use the mnemonics to refer
to the registers rather than the registers themselves. This
allows the assembly code to be coded once for both
architectures.
I see...the problem is not the input parameters but functions
calls **inside** iasm, right ?
Not sure I understand the question. Once the defines are there I
can write following:
| // Call luaF_close
| mov CARG1, L // arg1 = L
| mov CARG2, BASE // arg2 = base
| call extern luaF_close // call luaF_close
As you can see above, CARG1, L, CARG2, BASE are all mnemonics
that map to registers. However this is only defined in one place.
Regards
Dibyendu
