Provide hokey alternatives if no SSE or i387.

diff --git a/src/microcode/cmpauxmd/i386.m4 b/src/microcode/cmpauxmd/i386.m4
index 6292a0efc5f8ec491f8e1ceb025cdfd6f42f7652..85a26ee8507e933535552463d7cafb85ffd4eff6 100644 (file)
--- a/src/microcode/cmpauxmd/i386.m4
+++ b/src/microcode/cmpauxmd/i386.m4
@@ -1238,6 +1238,7 @@ IFSSE(`   enter           IMM(4),IMM(0)
        stmxcsr         IND(REG(esp))
        OP(mov,l)       TW(IND(REG(esp)),REG(eax))
        leave')
+IFNSSE(`OP(xor,l)      TW(REG(eax),REG(eax))')
        ret
 
 define_c_label(sse_write_mxcsr)
@@ -1257,6 +1258,7 @@ IF387(`   enter           IMM(4),IMM(0)
        fnstcw          IND(REG(esp))
        OP(mov,w)       TW(INDW(REG(esp)),REG(ax))
        leave')
+IFN387(`OP(xor,l)      TW(REG(eax),REG(eax))')
        ret
 
 define_c_label(x87_write_control_word)
@@ -1268,6 +1270,7 @@ IF387(`   enter           IMM(4),IMM(0)
        fnstsw          IND(REG(esp))
        OP(mov,w)       TW(INDW(REG(esp)),REG(ax))
        leave')
+IFN387(`OP(xor,l)      TW(REG(eax),REG(eax))')
        ret
 
 define_c_label(x87_read_environment)