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Code Issues 1 Releases Wiki Activity

Use 32 bit unsigned integers for stackframes.

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This commit is contained in:
Calvin Rose 2017-04-25 12:26:58 -04:00
parent 1d7f42ba01
commit 14f8b12706
3 changed files with 22 additions and 15 deletions
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7
core/stl.c
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@ -145,6 +145,12 @@ int gst_stl_length(Gst *vm) {
}
}
/* Get hash of a value */
int gst_stl_hash(Gst *vm) {
GstInteger h = gst_hash(gst_arg(vm, 0));
gst_c_return(vm, gst_wrap_integer(h));
}
/* Convert to integer */
int gst_stl_to_int(Gst *vm) {
GstValue x = gst_arg(vm, 0);
@ -569,6 +575,7 @@ static const GstModuleItem const std_module[] = {
{">=", gst_stl_greaterthaneq},
{"not", gst_stl_not},
{"length", gst_stl_length},
{"hash", gst_stl_hash},
{"to-integer", gst_stl_to_int},
{"to-real", gst_stl_to_real},
{"type", gst_stl_type},

10
core/vm.c
View File

@ -417,9 +417,9 @@ int gst_run(Gst *vm, GstValue callee) {
}
/* Get an argument from the stack */
GstValue gst_arg(Gst *vm, uint16_t index) {
GstValue gst_arg(Gst *vm, uint32_t index) {
GstValue *stack = gst_thread_stack(vm->thread);
uint16_t frameSize = gst_frame_size(stack);
uint32_t frameSize = gst_frame_size(stack);
if (frameSize <= index) {
GstValue ret;
ret.type = GST_NIL;
@ -429,15 +429,15 @@ GstValue gst_arg(Gst *vm, uint16_t index) {
}
/* Put a value on the stack */
void gst_set_arg(Gst* vm, uint16_t index, GstValue x) {
void gst_set_arg(Gst* vm, uint32_t index, GstValue x) {
GstValue *stack = gst_thread_stack(vm->thread);
uint16_t frameSize = gst_frame_size(stack);
uint32_t frameSize = gst_frame_size(stack);
if (frameSize <= index) return;
stack[index] = x;
}
/* Get the size of the VMStack */
uint16_t gst_count_args(Gst *vm) {
uint32_t gst_count_args(Gst *vm) {
GstValue *stack = gst_thread_stack(vm->thread);
return gst_frame_size(stack);
}

20
include/gst/gst.h
View File

@ -79,16 +79,16 @@
/* Stack frame manipulation */
/* Size of stack frame in number of values */
#define GST_FRAME_SIZE 4
#define GST_FRAME_SIZE 5
/* Macros for referencing a stack frame given a stack */
#define gst_frame_callee(s) (*(s - 1))
#define gst_frame_size(s) ((s - 2)->data.words[0])
#define gst_frame_prevsize(s) ((s - 2)->data.words[1])
#define gst_frame_args(s) ((s - 2)->data.words[2])
#define gst_frame_ret(s) ((s - 2)->data.words[3])
#define gst_frame_pc(s) ((s - 3)->data.u16p)
#define gst_frame_env(s) ((s - 4)->data.env)
#define gst_frame_size(s) ((s - 2)->data.dwords[0])
#define gst_frame_prevsize(s) ((s - 2)->data.dwords[1])
#define gst_frame_args(s) ((s - 3)->data.dwords[0])
#define gst_frame_ret(s) ((s - 3)->data.dwords[1])
#define gst_frame_pc(s) ((s - 4)->data.u16p)
#define gst_frame_env(s) ((s - 5)->data.env)
/* C function helpers */
@ -492,9 +492,9 @@ void gst_init(Gst *vm);
void gst_deinit(Gst *vm);
int gst_run(Gst *vm, GstValue func);
int gst_continue(Gst *vm);
GstValue gst_arg(Gst *vm, uint16_t index);
void gst_set_arg(Gst *vm, uint16_t index, GstValue x);
uint16_t gst_count_args(Gst *vm);
GstValue gst_arg(Gst *vm, uint32_t index);
void gst_set_arg(Gst *vm, uint32_t index, GstValue x);
uint32_t gst_count_args(Gst *vm);
/****/
/* C Api */