[ucsim-s51] Fox of [bugs:#3620] ucsim s51 push sp saves wrong value
tree029b2905a78d64f5bd5644df9c667d10c73d063d
drwxr-xr-x - sdcc-build
drwxr-xr-x - sdcc-cf
drwxr-xr-x - sdcc-extra
drwxr-xr-x - sdcc-web
drwxr-xr-x - sdcc