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-rw-r--r--utils/6c/reg.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/utils/6c/reg.c b/utils/6c/reg.c
index 32b9abf5..e04cb5fb 100644
--- a/utils/6c/reg.c
+++ b/utils/6c/reg.c
@@ -16,7 +16,7 @@ rega(void)
}
int
-rcmp(const void *a1, const void *a2)
+rcmp(void *a1, void *a2)
{
Rgn *p1, *p2;
int c1, c2;
@@ -50,6 +50,8 @@ regopt(Prog *p)
lastr = R;
nvar = 0;
regbits = RtoB(D_SP) | RtoB(D_AX) | RtoB(D_X0);
+ if(REGEXT)
+ regbits |= RtoB(REGEXT) | RtoB(REGEXT-1);
for(z=0; z<BITS; z++) {
externs.b[z] = 0;
params.b[z] = 0;