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/*
* (C) Gražvydas "notaz" Ignotas, 2011
*
* This work is licensed under the terms of GNU GPL version 2 or later.
* See the COPYING file in the top-level directory.
*/
static int pcsx_direct_read(int type, u_int addr, int cc_adj, int cc, int rs, int rt)
{
if ((addr & 0xfffff000) == 0x1f801000) {
u_int t;
switch (addr & 0xffff) {
case 0x1120: // rcnt2 count
if (rt < 0) goto dont_care;
if (cc < 0) return 0;
emit_readword((int)&rcnts[2].mode, HOST_TEMPREG);
emit_readword((int)&rcnts[2].cycleStart, rt);
emit_testimm(HOST_TEMPREG, 0x200);
emit_readword((int)&last_count, HOST_TEMPREG);
emit_sub(HOST_TEMPREG, rt, HOST_TEMPREG);
emit_add(HOST_TEMPREG, cc, HOST_TEMPREG);
if (cc_adj)
emit_addimm(HOST_TEMPREG, cc_adj, rt);
emit_shrne_imm(rt, 3, rt);
mov_loadtype_adj(type!=LOADW_STUB?type:LOADH_STUB, rt, rt);
goto hit;
case 0x1104:
case 0x1114:
case 0x1124: // rcnt mode
if (rt < 0) return 0;
t = (addr >> 4) & 3;
emit_readword((int)&rcnts[t].mode, rt);
emit_andimm(rt, ~0x1800, HOST_TEMPREG);
emit_writeword(HOST_TEMPREG, (int)&rcnts[t].mode);
mov_loadtype_adj(type, rt, rt);
goto hit;
}
}
else {
if (rt < 0)
goto dont_care;
}
return 0;
hit:
assem_debug("pcsx_direct_read %08x end\n", addr);
return 1;
dont_care:
assem_debug("pcsx_direct_read %08x dummy\n", addr);
return 1;
}
// vim:shiftwidth=2:expandtab
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