ubergames/ioef
0
0
Fork 0
mirror of https://github.com/UberGames/ioef.git synced 2025-01-18 23:21:37 +00:00
Code Issues Projects Releases Packages Wiki Activity

implement immediate argument for call

Browse source
This commit is contained in:
Ludwig Nussel 2009-11-01 19:58:16 +00:00
parent ed98f65d10
commit b7eae0dca5
1 changed files with 21 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
code/qcommon/vm_x86_64_assembler.c
View file

@ -811,24 +811,34 @@ static void emit_call(const char* mnemonic, arg_t arg1, arg_t arg2, void* data)
{ {
u8 rex, modrm, sib; u8 rex, modrm, sib;
if(arg1.type != T_REGISTER || arg2.type != T_NONE) if((arg1.type != T_REGISTER && arg1.type != T_IMMEDIATE) || arg2.type != T_NONE)
CRAP_INVALID_ARGS; CRAP_INVALID_ARGS;
if(!arg1.absolute) if(arg1.type == T_REGISTER)
crap("call must be absolute"); {
if(!arg1.absolute)
crap("call must be absolute");
if((arg1.v.reg & R_64) != R_64) if((arg1.v.reg & R_64) != R_64)
crap("register must be 64bit"); crap("register must be 64bit");
arg1.v.reg ^= R_64; // no rex required for call arg1.v.reg ^= R_64; // no rex required for call
compute_rexmodrmsib(&rex, &modrm, &sib, &arg2, &arg1); compute_rexmodrmsib(&rex, &modrm, &sib, &arg2, &arg1);
modrm |= 0x2 << 3; modrm |= 0x2 << 3;
if(rex) emit1(rex); if(rex) emit1(rex);
emit1(0xff); emit1(0xff);
emit1(modrm); emit1(modrm);
}
else
{
if(!isu32(arg1.v.imm))
crap("must be 32bit argument");
emit1(0xe8);
emit4(arg1.v.imm);
}
} }