Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-30 11:50:30 +03:00
Code Issues Actions 11 Packages Projects Releases Wiki Activity

cpu/jaguar: Fixed PACK opcode.

Browse Source
This commit is contained in:
Ville Linde 2013-02-16 02:15:31 +00:00
parent 8b1eabaf1e
commit cd67733678
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/emu/cpu/jaguar/jaguar.c
View File

@ -998,15 +998,14 @@ void or_rn_rn(jaguar_cpu_state *jaguar, UINT16 op)
void pack_rn(jaguar_cpu_state *jaguar, UINT16 op) /* GPU only */ void pack_rn(jaguar_cpu_state *jaguar, UINT16 op) /* GPU only */
{ {
int dreg = op & 31; int dreg = op & 31;
UINT32 r1 = jaguar->r[(op >> 5) & 31]; int pack = (op >> 5) & 31;
UINT32 r2 = jaguar->r[dreg]; UINT32 r2 = jaguar->r[dreg];
UINT32 res; UINT32 res;
if (r1 == 0) /* PACK */ if (pack == 0) /* PACK */
res = ((r2 >> 10) & 0xf000) | ((r2 >> 5) & 0x0f00) | (r2 & 0xff); res = ((r2 >> 10) & 0xf000) | ((r2 >> 5) & 0x0f00) | (r2 & 0xff);
else /* UNPACK */ else /* UNPACK */
res = ((r2 & 0xf000) << 10) | ((r2 & 0x0f00) << 5) | (r2 & 0xff); res = ((r2 & 0xf000) << 10) | ((r2 & 0x0f00) << 5) | (r2 & 0xff);
jaguar->r[dreg] = res; jaguar->r[dreg] = res;
CLR_ZN(jaguar); SET_ZN(jaguar, res);
} }
void resmac_rn(jaguar_cpu_state *jaguar, UINT16 op) void resmac_rn(jaguar_cpu_state *jaguar, UINT16 op)