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This commit is contained in:
Simon Brooke 2026-04-21 14:43:09 +01:00
parent aa5b34368e
commit ef59563e25
14 changed files with 206 additions and 180 deletions
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21
src/c/ops/assoc.c
View file

@ -17,6 +17,7 @@
#include "memory/tags.h"
#include "payloads/cons.h"
#include "payloads/stack.h"
#include "ops/eq.h"
#include "ops/stack_ops.h"
@ -100,13 +101,13 @@ struct pso_pointer assoc(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
struct pso_pointer key = fetch_arg( frame, 0 );
struct pso_pointer store = fetch_arg( frame, 1 );
struct pso_pointer store = or( make_frame( 2, frame_pointer,
fetch_arg( frame, 1 ), frame->payload.stack_frame.env));
return c_assoc( key, store );
}
@ -120,13 +121,13 @@ struct pso_pointer interned(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
struct pso_pointer key = fetch_arg( frame, 0 );
struct pso_pointer store = fetch_arg( frame, 1 );
struct pso_pointer store = or( make_frame( 2, frame_pointer,
fetch_arg( frame, 1 ), frame->payload.stack_frame.env));
return c_interned( key, store );
}
@ -140,13 +141,13 @@ struct pso_pointer internedp(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
struct pso_pointer key = fetch_arg( frame, 0 );
struct pso_pointer store = fetch_arg( frame, 1 );
struct pso_pointer store = or( make_frame( 2, frame_pointer,
fetch_arg( frame, 1 ), frame->payload.stack_frame.env));
return c_interned( key, store );
return c_internedp( key, store );
}

14
src/c/ops/bind.c
View file

@ -22,25 +22,19 @@
#include "payloads/function.h"
#include "payloads/stack.h"
struct pso_pointer lisp_bind(
struct pso_pointer bind(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
struct pso_pointer key = fetch_arg( frame, 0 );
struct pso_pointer value = fetch_arg( frame, 1 );
struct pso_pointer store = fetch_arg( frame, 2 );
struct pso_pointer binding = cons( make_frame( 2, frame_pointer, key, value));
return make_cons( make_cons( key, value ), store );
return cons( make_frame( 2, frame_pointer, binding, store));
}
struct pso_pointer c_bind( struct pso_pointer key,
struct pso_pointer value,
struct pso_pointer store ) {
// todo: issue #21: must have stack frame passed in.
return make_cons( make_cons( key, value ), store );
}

6
src/c/ops/eq.c
View file

@ -99,8 +99,7 @@ struct pso_pointer eq(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer ) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
@ -139,8 +138,7 @@ struct pso_pointer equal(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer ) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );

9
src/c/ops/eq.h
View file

@ -20,24 +20,19 @@
bool c_eq( struct pso_pointer a, struct pso_pointer b );
struct pso_pointer eq( struct pso_pointer frame_pointer,
struct pso_pointer env );
bool c_equal( struct pso_pointer a, struct pso_pointer b );
struct pso_pointer eq(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer frame_pointer );
struct pso_pointer equal(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer frame_pointer);
#endif

8
src/c/ops/eval_apply.c
View file

@ -35,8 +35,7 @@ struct pso_pointer apply(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
@ -54,8 +53,7 @@ struct pso_pointer eval(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
struct pso_pointer frame_pointer) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
@ -71,7 +69,7 @@ struct pso_pointer eval(
// self evaluating
break;
case SYMBOLTV:
result = c_assoc( result, env );
result = c_assoc( result, fetch_env(frame_pointer) );
break;
// case LAMBDATV:
// result = eval_lambda( frame, frame_pointer, env);

69
src/c/ops/list_ops.c
View file

@ -1,5 +1,5 @@
/**
* ops/list_ops.h
* ops/list_ops.c
*
* Post Scarcity Software Environment: list_ops.
*
@ -8,65 +8,22 @@
* (c) 2026 Simon Brooke <simon@journeyman.cc>
* Licensed under GPL version 2.0, or, at your option, any later version.
*/
#ifndef __psse_ops_list_ops_h
#define __psse_ops_list_ops_h
#include "memory/pointer.h"
#include "memory/pso.h"
#include "memory/pso2.h"
#include "memory/pso4.h"
#include "memory/tags.h"
#include "ops/stack_ops.h"
#include "payloads/cons.h"
#include "payloads/stack.h"
#include "ops/truth.h"
struct pso_pointer car(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
return c_car( fetch_arg( frame, 0 ) );
struct pso_pointer length( struct pso_pointer frame_pointer) {
struct pso_pointer list = fetch_arg( frame_pointer, 0);
int count = 0;
for ( struct pso_pointer cursor = list; !nilp( cursor);
cursor = cdr( make_frame( 1, frame_pointer, list))) {
count++;
}
return make_integer( pointer_to_pso4(frame_pointer), count);
}
struct pso_pointer cdr(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
return c_cdr( frame, fetch_arg( frame, 0 ) );
}
/**
* @brief allocate a cons cell from the first two args in this frame, and
* return a pointer to it.
*
* Lisp calling conventions.
*
* @return struct pso_pointer a pointer to the newly allocated cons cell.
*/
struct pso_pointer cons(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env ) {
#ifdef MANAGED_POINTER_ONLY
struct pso4 *frame = pointer_to_pso4( frame_pointer );
#endif
return make_cons( frame, fetch_arg( frame, 0 ), fetch_arg( frame, 1 ) );
}
#endif

22
src/c/ops/list_ops.h
View file

@ -17,25 +17,5 @@
#include "payloads/function.h"
struct pso_pointer car(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer cdr(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer cons(
#ifndef MANAGED_POINTER_ONLY
struct pso4 *frame,
#endif
struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer length( struct pso_pointer frame_pointer);
#endif

15
src/c/ops/stack_ops.c
View file

@ -10,6 +10,7 @@
#include "memory/node.h"
#include "memory/pso2.h"
#include "memory/pso4.h"
#include "memory/tags.h"
#include "payloads/stack.h"
/**
@ -21,6 +22,8 @@ uint32_t stack_limit = 0;
/**
* Fetch a pointer to the value of the local variable at this index.
*
* TODO: I think the first argument would be better as a pso_pointer.
*/
struct pso_pointer fetch_arg( struct pso4 *frame, unsigned int index ) {
struct pso_pointer result = nil;
@ -40,3 +43,15 @@ struct pso_pointer fetch_arg( struct pso4 *frame, unsigned int index ) {
return result;
}
/**
* @brief Return the environment from the stack frame identified by this
* `frame_pointer`
*
* @param frame_pointer a pointer to a stack frame.
*/
struct pso_pointer fetch_env( struct pso_pointer frame_pointer) {
return stackp(frame_pointer) ?
pointer_to_pso4(frame_pointer)->payload.stack_frame.env :
nil;
}

2
src/c/ops/stack_ops.h
View file

@ -27,4 +27,6 @@ extern uint32_t stack_limit;
struct pso_pointer fetch_arg( struct pso4 *frame, unsigned int index );
struct pso_pointer fetch_env( struct pso_pointer frame_pointer);
#endif

46
src/c/payloads/cons.c
View file

@ -26,11 +26,12 @@
* @brief allocate a cons cell with this car and this cdr, and return a pointer
* to it.
*
* @param car the pointer which should form the car of this cons cell;
* @param cdr the pointer which should form the cdr of this cons cell.
* (cons object object)
*
* @param frame_pointer a pointer to a stack frame.
* @return struct pso_pointer a pointer to the newly allocated cons cell.
*/
struct pso_pointer make_cons( struct pso_pointer frame_pointer ) {
struct pso_pointer cons( struct pso_pointer frame_pointer ) {
struct pso4 *frame = pointer_to_pso4( frame_pointer );
struct pso_pointer result = allocate( frame, CONSTAG, 2 );
@ -49,18 +50,28 @@ struct pso_pointer make_cons( struct pso_pointer frame_pointer ) {
/**
* @brief return the car of this cons cell.
*
* @param cons a pointer to the cell.
* (car cell)
*
* @param frame_pointer a pointer to a stack frame.
* @return the car of the indicated cell.
* @exception if the pointer does not indicate a cons cell.
*/
struct pso_pointer c_car( struct pso_pointer cons ) {
struct pso_pointer car( struct pso_pointer frame_pointer ) {
struct pso_pointer result = nil;
struct pso_pointer cons = fetch_arg( pointer_to_pso4( frame_pointer), 0);
struct pso2 *object = pointer_to_object( cons );
if ( consp( cons ) ) {
result = object->payload.cons.car;
} else {
result =
make_exception( make_frame( 2, frame_pointer,
c_string_to_lisp_string( frame_pointer, L"Invalid type for car" ),
make_cons(
make_cons( frame_pointer,
c_string_to_lisp_keyword( frame_pointer, L"type" ),
get_tag_string( cons )), nil)));
}
// TODO: else throw an exception
return result;
}
@ -68,14 +79,17 @@ struct pso_pointer c_car( struct pso_pointer cons ) {
/**
* @brief return the cdr of this cons (or other sequence) cell.
*
* @param cons a pointer to the cell.
* (cdr cell)
*
* @param frame_pointer a pointer to a stack frame.
* @return the cdr of the indicated cell.
* @exception if the pointer does not indicate a cons cell.
*/
struct pso_pointer c_cdr( struct pso4 *stack_pointer, struct pso_pointer p ) {
// todo: issue #21: must have stack frame passed in.
struct pso_pointer cdr( struct pso_pointer frame_pointer ) {
struct pso_pointer result = nil;
struct pso2 *object = pointer_to_object( p );
struct pso4 *sp = pointer_to_pso4(frame_pointer);
struct pso_pointer cons = fetch_arg(sp, 0);
struct pso2 *object = pointer_to_object( cons );
switch ( get_tag_value( p ) ) {
case CONSTV:
@ -88,15 +102,15 @@ struct pso_pointer c_cdr( struct pso4 *stack_pointer, struct pso_pointer p ) {
break;
default:
result =
make_exception( make_cons
( stack_pointer, c_string_to_lisp_string
( stack_pointer, L"Invalid type for cdr" ),
get_tag_string( p ) ), nil, nil, nil );
make_exception( make_frame( 2, frame_pointer,
c_string_to_lisp_string( frame_pointer, L"Invalid type for cdr" ),
make_cons(
make_cons( frame_pointer,
c_string_to_lisp_keyword( frame_pointer, L"type" ),
get_tag_string( cons )), nil)));
break;
}
// TODO: else throw an exception
return result;
}

9
src/c/payloads/cons.h
View file

@ -27,14 +27,11 @@ struct cons_payload {
struct pso_pointer cdr;
};
struct pso_pointer c_car( struct pso_pointer cons );
struct pso_pointer car( struct pso_pointer frame_pointer );
struct pso_pointer c_cdr( struct pso4 *stack_pointer,
struct pso_pointer cons );
struct pso_pointer cdr( struct pso_pointer frame_pointer );
// todo: issue #21: must have stack frame passed in.
struct pso_pointer make_cons( struct pso4 *stack_pointer,
struct pso_pointer car, struct pso_pointer cdr );
struct pso_pointer cons( struct pso_pointer frame_pointer );
struct pso_pointer destroy_cons( struct pso_pointer fp,
struct pso_pointer env );

13
src/c/payloads/exception.c
View file

@ -23,6 +23,8 @@
* @brief allocate an exception object, and, if successful, return a pointer
* to it.
*
* (exception message meta cause)
*
* Throwing an exception while generating an exception is meaningless. If
* allocation fails utterly (i.e. out of heap, out of page space) this will
* have to return `nil`, which might give rise to hard to trace bugs. But
@ -34,10 +36,13 @@
* or `nil`
* @param cause the exception that caused this exception to be `thrown`.
*/
struct pso_pointer make_exception( struct pso_pointer message,
struct pso_pointer frame,
struct pso_pointer meta,
struct pso_pointer cause ) {
struct pso_pointer make_exception( struct pso_pointer frame_pointer) {
struct pso4* frame = pointer_to_pso4( frame_pointer);
struct pso_pointer message = fetch_arg(frame, 0);
struct pso_pointer previous = frame->payload.stack_frame.previous;
struct pso_pointer meta = fetch_arg( frame, 1);
struct pso_pointer cause = fetch_arg( frame, 2);
struct pso_pointer result =
allocate( pointer_to_pso4( frame ), EXCEPTIONTAG, 3 );

6
src/c/payloads/function.h
View file

@ -37,8 +37,7 @@ struct function_payload {
* to the Lisp function are assumed to be loaded into the frame before
* invocation.
*/
struct pso_pointer ( *executable ) ( struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer ( *executable ) ( struct pso_pointer frame_pointer );
#else
/**
* pointer to a C function which takes an unmanaged pointer to a stack frame,
@ -47,8 +46,7 @@ struct function_payload {
* loaded into the frame before invocation.
*/
struct pso_pointer ( *executable ) ( struct pso4 * frame,
struct pso_pointer frame_pointer,
struct pso_pointer env );
struct pso_pointer frame_pointer );
#endif
};

144
src/c/payloads/stack.c
View file

@ -37,63 +37,63 @@
* passed to the Lisp function.
*/
struct pso_pointer make_frame( int arg_count, struct pso_pointer previous,
struct pso_pointer env, ... ) {
... ) {
va_list args;
va_start( args, env );
va_start( args, previous );
struct pso4 *frame = pointer_to_pso4( previous );
struct pso_pointer frame_pointer =
struct pso4 *prev_frame = pointer_to_pso4( previous );
struct pso_pointer new_pointer =
allocate( pointer_to_pso4( previous ), STACKTAG, 4 );
struct pso4* new_frame = pointer_to_pso4(new_pointer);
#ifdef DEBUG
debug_printf( DEBUG_ALLOC, 0,
L"\nAllocating stack frame with %d arguments at page %d, "
L"offset %d...\n",
arg_count, frame_pointer.page, frame_pointer.offset );
arg_count, new_pointer.page, new_pointer.offset );
#endif
frame->payload.stack_frame.previous = previous;
prev_frame->payload.stack_frame.previous = previous;
if ( stackp( previous ) ) {
struct pso4 *op = pointer_to_pso4( previous );
frame->payload.stack_frame.depth = op->payload.stack_frame.depth + 1;
frame->payload.stack_frame.env = op->payload.stack_frame.env;
new_frame->payload.stack_frame.depth = prev_frame->payload.stack_frame.depth + 1;
new_frame->payload.stack_frame.env = prev_frame->payload.stack_frame.env;
} else {
frame->payload.stack_frame.depth = 0;
new_frame->payload.stack_frame.depth = 0;
}
debug_printf( DEBUG_ALLOC, 1, L"depth is %d...\n",
frame->payload.stack_frame.depth );
new_frame->payload.stack_frame.depth );
int cursor = 0;
frame->payload.stack_frame.args = arg_count;
new_frame->payload.stack_frame.args = arg_count;
for ( ; cursor < arg_count && cursor < args_in_frame; cursor++ ) {
struct pso_pointer argument = va_arg( args, struct pso_pointer );
frame->payload.stack_frame.arg[cursor] = inc_ref( argument );
new_frame->payload.stack_frame.arg[cursor] = inc_ref( argument );
}
if ( cursor < arg_count ) {
struct pso_pointer more_args = nil;
for ( ; cursor < arg_count; cursor++ ) {
more_args =
make_cons( frame, va_arg( args, struct pso_pointer ),
make_cons( prev_frame, va_arg( args, struct pso_pointer ),
more_args );
}
frame->payload.stack_frame.more = c_reverse( more_args );
new_frame->payload.stack_frame.more = c_reverse( more_args );
} else {
for ( ; cursor < args_in_frame; cursor++ ) {
frame->payload.stack_frame.arg[cursor] = nil;
new_frame->payload.stack_frame.arg[cursor] = nil;
}
}
debug_printf( DEBUG_ALLOC, 1,
L"Allocation of frame at page %d, offset %d completed.\n",
frame_pointer.page, frame_pointer.offset );
L"Allocation of stack frame at page %d, offset %d completed.\n",
new_pointer.page, new_pointer.offset );
return frame_pointer;
return new_pointer;
}
/**
@ -115,59 +115,131 @@ struct pso_pointer make_frame_with_env( int arg_count,
va_list args;
va_start( args, env );
struct pso4 *frame = pointer_to_pso4( previous );
struct pso_pointer frame_pointer =
struct pso4 *prev_frame = pointer_to_pso4( previous );
struct pso_pointer new_pointer =
allocate( pointer_to_pso4( previous ), STACKTAG, 4 );
struct pso4* new_frame = pointer_to_pso4(new_pointer);
#ifdef DEBUG
debug_printf( DEBUG_ALLOC, 0,
L"\nAllocating stack frame with %d arguments at page %d, "
L"offset %d...\n",
arg_count, frame_pointer.page, frame_pointer.offset );
arg_count, new_pointer.page, new_pointer.offset );
#endif
frame->payload.stack_frame.previous = previous;
prev_frame->payload.stack_frame.previous = previous;
if ( stackp( previous ) ) {
struct pso4 *op = pointer_to_pso4( previous );
frame->payload.stack_frame.depth = op->payload.stack_frame.depth + 1;
frame->payload.stack_frame.env = env;
new_frame->payload.stack_frame.depth = prev_frame->payload.stack_frame.depth + 1;
new_frame->payload.stack_frame.env = env;
} else {
frame->payload.stack_frame.depth = 0;
new_frame->payload.stack_frame.depth = 0;
}
debug_printf( DEBUG_ALLOC, 1, L"depth is %d...\n",
frame->payload.stack_frame.depth );
new_frame->payload.stack_frame.depth );
int cursor = 0;
frame->payload.stack_frame.args = arg_count;
new_frame->payload.stack_frame.args = arg_count;
for ( ; cursor < arg_count && cursor < args_in_frame; cursor++ ) {
struct pso_pointer argument = va_arg( args, struct pso_pointer );
frame->payload.stack_frame.arg[cursor] = inc_ref( argument );
new_frame->payload.stack_frame.arg[cursor] = inc_ref( argument );
}
if ( cursor < arg_count ) {
struct pso_pointer more_args = nil;
for ( ; cursor < arg_count; cursor++ ) {
more_args =
make_cons( frame, va_arg( args, struct pso_pointer ),
make_cons( prev_frame, va_arg( args, struct pso_pointer ),
more_args );
}
frame->payload.stack_frame.more = c_reverse( more_args );
new_frame->payload.stack_frame.more = c_reverse( more_args );
} else {
for ( ; cursor < args_in_frame; cursor++ ) {
frame->payload.stack_frame.arg[cursor] = nil;
new_frame->payload.stack_frame.arg[cursor] = nil;
}
}
debug_printf( DEBUG_ALLOC, 1,
L"Allocation of frame at page %d, offset %d completed.\n",
frame_pointer.page, frame_pointer.offset );
L"Allocation of stack frame at page %d, offset %d completed.\n",
new_pointer.page, new_pointer.offset );
return frame_pointer;
return new_pointer;
}
/**
* @brief variant make_frame where arg values are available as a Lisp list,
* and an explicit (because modified) environment is to be passed..
*
* @param previous pointer to the previous stack frame.
* @param argvalues values for the arguments to be placed in the frame.
* @param end the environment to be linked in the new frame.
*
* @return pointer to the new frame.
*/
struct pso_pointer make_frame_with_arglist_and_env( struct pso_pointer previous, struct pso_pointer argvalues,
struct pso_pointer env) {
struct pso4 *prev_frame = pointer_to_pso4( previous );
struct pso_pointer new_pointer =
allocate( pointer_to_pso4( previous ), STACKTAG, 4 );
struct pso4* new_frame = pointer_to_pso4(new_pointer);
int arg_count = c_length(argvalues);
#ifdef DEBUG
debug_printf( DEBUG_ALLOC, 0,
L"\nAllocating stack frame with %d arguments at page %d, "
L"offset %d...\n",
arg_count, new_pointer.page, new_pointer.offset );
#endif
prev_frame->payload.stack_frame.previous = previous;
if ( stackp( previous ) ) {
new_frame->payload.stack_frame.depth = prev_frame->payload.stack_frame.depth + 1;
new_frame->payload.stack_frame.env = inc_ref( prev_frame->payload.stack_frame.env);
} else {
new_frame->payload.stack_frame.depth = 0;
}
debug_printf( DEBUG_ALLOC, 1, L"depth is %d...\n",
new_frame->payload.stack_frame.depth );
int cursor = 0;
new_frame->payload.stack_frame.args = arg_count;
for ( ; cursor < arg_count && cursor < args_in_frame; cursor++ ) {
new_frame->payload.stack_frame.arg[cursor] = inc_ref( make_frame( 1, previous, car(argvalues)));
argvalues = cdr( make_frame( 1, previous, argvalues));
}
if ( cursor < arg_count ) {
new_frame->payload.stack_frame.more = inc_ref( cursor);
} else {
for ( ; cursor < args_in_frame; cursor++ ) {
new_frame->payload.stack_frame.arg[cursor] = nil;
}
}
debug_printf( DEBUG_ALLOC, 1,
L"Allocation of stack frame at page %d, offset %d completed.\n",
new_pointer.page, new_pointer.offset );
return new_pointer;
}
/**
* @brief variant make_frame where arg values are available as a Lisp list.
*
* @param previous pointer to the previous stack frame.
* @param argvalues values for the arguments to be placed in the frame.
*
* @return pointer to the new frame.
*/
struct pso_pointer make_frame_with_arglist( struct pso_pointer previous, struct pso_pointer argvalues) {
return make_frame_with_arglist_and_env( previous, argvalues, pointer_to_pso4(previous)->payload.stack_frame.env);
}