Use correct rounding mode on x86 and x86-64 recompiled versions of PF2ID. Fixes rendering errors on Unreal 3DNow! software renderer

2019-01-10 21:33:29 +00:00 · 2019-01-10 21:33:29 +00:00 · 56a4d5cf83
commit 56a4d5cf83
parent 8ee9b07ab2
6 changed files with 14 additions and 0 deletions
--- a/src/codegen_backend_x86.c
+++ b/src/codegen_backend_x86.c
@ -333,6 +333,7 @@ pclog("  offsetof(codeblock_t, next_2)=%i\n", offsetof(codeblock_t, next_2));
                : "=m" (cpu_state.old_fp_control2),
                  "=m" (cpu_state.old_fp_control)
        );
+        cpu_state.trunc_fp_control = cpu_state.old_fp_control | 0x6000;
 }

 void codegen_set_rounding_mode(int mode)