I think the fast food outlet was KFC, not mac. It was also quite iconic.
I used to go there after going to CDAC (next doors)
Yes, the fast food outlook there was KFC, up to the time, the whole place was demolished. At the Lion City Hotel Annexe was the Chinese Restaurant, where many wedding dinners where held there, attended a few there. There was a coffee house at that location too. At the shopping area, was Oriental Emporium & the bank, if I am not mistaken was OUB or was it UOB?. Next to the Annexe was Hollywood Theatre, before it closed & became City Harvest Church, Kong Hee Fatt Choy & the "China Wine" started there, when they move off, later years , up to the time, it was demolished, it was Seng Sheong Supermarket.
Used to rendezvous at KFC often with a lady for a tête à tête! & then later for some, " mo mo cha cha".