/* Memory access facilities */ /* $Id$ */ /******** Memory address & location defines ********/ #define data_loc(a) (*(data + (p2i(a)))) #define stack_loc(a) (*(stackML - (a))) #define mem_loc(a) (in_stack(a) ? stack_loc(a) : data_loc(a)) #define loc_addr(o) (((o) < 0) ? (LB + (o)) : (AB + (o))) /******** Checks on adresses and ranges ********/ #define is_aligned(a,n) ((p2i(a)) % (n) == 0) #define is_wordaligned(a) \ (((p2i(a)) & wsizem1) == 0) #define ch_aligned(a,n) { if (!is_aligned(a, min(n, wsize))) \ { trap(EBADPTR); } } #define ch_wordaligned(a) \ { if (!is_wordaligned(a)) \ { trap(EBADPTR); } } #define in_gda(p) ((p) < HB) #define in_stack(p) (SP <= (p) && (p) <= ML) #define is_in_data(a,n) ((a) + (n) <= HP) #define ch_in_data(a,n) { if (!is_in_data(a, n)) { trap(EMEMFLT); } } #define is_in_stack(a,n) (SP <= (a) && (a) + (n) - 1 <= ML) #define ch_in_stack(a,n) { if (!is_in_stack(a, n)) { trap(EMEMFLT); } } #define w_is_in_stack(a) (SP <= (a) && (a) + wsizem1 <= ML) #define ch_w_in_stack(a) { if (!w_is_in_stack(a)) { trap(EMEMFLT); } } #define is_in_FRA(a,n) ((a) + (n) <= FRASize) /******* Address-depending memory defines *******/ #define is_in_mem(a,n) (is_in_data(a, n) || is_in_stack(a, n)) #define mem_stn(a,l,n) { if (in_stack(a)) st_stn(a, l, n); else dt_stn(a, l, n); } #define mem_lddp(a) (in_stack(a) ? st_lddp(a) : dt_lddp(a)) #define mem_ldip(a) (in_stack(a) ? st_ldip(a) : dt_ldip(a)) #define mem_ldu(a,n) (in_stack(a) ? st_ldu(a, n) : dt_ldu(a, n)) #define mem_lduw(a) (in_stack(a) ? st_lduw(a) : dt_lduw(a)) #define mem_lds(a,n) (in_stack(a) ? st_lds(a, n) : dt_lds(a, n)) #define mem_ldsw(a) (in_stack(a) ? st_ldsw(a) : dt_ldsw(a)) #define push_m(a,n) { if (in_stack(a)) push_st(a, n); else push_dt(a, n); } #define pushw_m(a) { if (in_stack(a)) pushw_st(a); else pushw_dt(a); } #define pop_m(a,n) { if (in_stack(a)) pop_st(a, n); else pop_dt(a, n); } #define popw_m(a) { if (in_stack(a)) popw_st(a); else popw_dt(a); } /******** Simple stack manipulation ********/ #define st_inc(n) newSP(SP - (n)) /* stack grows */ #define st_dec(n) newSP(SP + (n)) /* stack shrinks */ /******** Function return types ********/ extern ptr st_ldip(), dt_ldip(); extern ptr st_lddp(), dt_lddp(), dppop(); extern long st_lds(), st_ldsw(), dt_lds(), dt_ldsw(), spop(), swpop(), wpop(); extern unsigned long st_ldu(), st_lduw(), dt_ldu(), dt_lduw(), upop(), uwpop();