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[gamecode] Rearrange bfunction_t in preparation for param offsets

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The builtin and progs function data is overlaid so the extra data
doesn't cause too much memory to be used (it's actually 8 bytes smaller
now).  The plan is to pre-compute the offsets based on the parameter
size and alignment data.
This commit is contained in:
Bill Currie 2022-01-24 00:13:44 +09:00
parent a6b932025c
commit a818fa4b8e
2 changed files with 22 additions and 8 deletions
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24
include/QF/progs.h
View file

@ -1221,13 +1221,25 @@ typedef struct {
*/
typedef struct {
pr_int_t first_statement;
pr_int_t parm_start;
pr_int_t locals;
pr_uint_t profile;
pr_int_t numparms;
dparmsize_t parm_size[PR_MAX_PARAMS];
dfunction_t *descriptor;
builtin_proc func;
union {
struct {
dparmsize_t parm_size[PR_MAX_PARAMS];
dfunction_t *descriptor;
pr_uint_t parm_start;
pr_uint_t locals;
pr_uint_t profile;
};
struct {
// although Ruamoko progs support more than PR_MAX_PARAMS
// arguments, only the first PR_MAX_PARAMS parameter pointers
// are initialized. This keeps builtins meant for both ISAs
// simple as they either will never accept more tha PR_MAX_PARAMS
// arugments, or they'll be modified to do the right thing.
pr_ushort_t param_offsets[PR_MAX_PARAMS];
builtin_proc func;
};
};
} bfunction_t;
/** Register a set of builtin functions with the VM. Different VMs within the

6
libs/gamecode/pr_exec.c
View file

@ -284,9 +284,11 @@ PR_EnterFunction (progs_t *pr, bfunction_t *f)
sizeof (pr_type_t) * f->locals);
pr->localstack_used += f->locals;
if (pr_deadbeef_locals->int_val)
for (i = f->parm_start; i < f->parm_start + f->locals; i++)
if (pr_deadbeef_locals->int_val) {
for (pr_uint_t i = f->parm_start; i < f->parm_start + f->locals; i++) {
pr->pr_globals[i].int_var = 0xdeadbeef;
}
}
// copy parameters
if (f->numparms >= 0) {