Correct top-of-stack value stored by FSTENV. Fixes rendering in

CNCD - Inside
2021-05-30 15:23:11 +01:00 · 2021-05-30 15:23:11 +01:00 · 51516c0bb1
commit 51516c0bb1
parent e8d6266df6
1 changed files with 2 additions and 0 deletions
--- a/src/x87_ops_misc.h
+++ b/src/x87_ops_misc.h
@ -781,6 +781,8 @@ static int FSTENV()
 {
        FP_ENTER();
        if (fplog) pclog("FSTENV %08X:%08X\n", easeg, cpu_state.eaaddr);
+        cpu_state.npxs = (cpu_state.npxs & ~(7 << 11)) | ((cpu_state.TOP & 7) << 11);
+
        switch ((cr0 & 1) | (cpu_state.op32 & 0x100))
        {
                case 0x000: /*16-bit real mode*/