+################################################################################
+# mulmod_test #
+################################################################################
+
+def mulmod_test(a,b,c)
+ begin
+ printf("[testing] mulmod(%#x, %#x, %#x)\n",a,b,c) if $debug
+ line = $sp.gets()
+ line = "" if line==nil
+ puts("DBG got: "+line) if $debug
+ if /^Error:.*/.match(line)
+ puts line
+ return false
+ end
+ end while ! /[\s]*enter a:[\s]*/.match(line)
+ $sp.print(a.to_s(16)+" ")
+ begin
+ line = $sp.gets()
+ line = "" if line==nil
+ puts("DBG got: "+line) if $debug
+ if /^Error:.*/.match(line)
+ puts line
+ return false
+ end
+ end while ! /[\s]*enter b:[\s]*/.match(line)
+ $sp.print(b.to_s(16)+" ")
+ begin
+ line = $sp.gets()
+ line = "" if line==nil
+ puts("DBG got: "+line) if $debug
+ if /^Error:.*/.match(line)
+ puts line
+ return false
+ end
+ end while ! /[\s]*enter c:[\s]*/.match(line)
+ $sp.print(c.to_s(16)+" ")
+ line=''
+ begin
+ line_tmp = $sp.gets()
+ line_tmp = '' if line_tmp==nil
+ line += line_tmp
+ puts("DBG got: "+line) if $debug
+ if /^Error:.*/.match(line)
+ puts line
+ return false
+ end
+ m = /[\s]*\([\s]*([+-]?[0-9a-fA-F]*)[\s]*\*[\s]*([+-]?[0-9a-fA-F]*)[\s]*\)[\s]+%[\s]+([+-]?[0-9a-fA-F]*)[\s]*=[\s]*([+-]?[0-9a-fA-F]+)/.match(line)
+ puts("DBG: line did not match pattern (" + line + ")") if !m && $debug
+ end while ! m
+ a_ = m[1].to_i(16)
+ b_ = m[2].to_i(16)
+ c_ = m[3].to_i(16)
+ d_ = m[4].to_i(16)
+ line.chomp!
+ if(a_== a && b_ == b && c_ == c && d_ == (a * b % c) )
+ $logfile.printf("[pass]: %s\n", line)
+ return true
+ else
+ $logfile.printf("[fail (%s%s%s%s)]: %s", (a == a_) ? '' : 'a', (b == b_) ? '' : 'b', (c_ == c) ? '' : 'c', (d_== (a * b % c)) ? '' : 'd',line)
+ $logfile.printf(" ; should (%s * %s) %% %s = %s\n", a.to_s(16), b.to_s(16), c.to_s(16), (a * b % c).to_s(16))
+ return false
+ end
+ return false
+end
+