removed more unused code
This commit is contained in:
parent
6a32e4278c
commit
102fa8abf4
@ -370,18 +370,7 @@
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## --------------------------------------------------
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## --------------------------------------------------
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## If VM is built without STIX_USE_PROCSTK
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## --------------------------------------------------
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## | pc sp |
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## sp := thisContext sp.
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## pc := thisContext pcplus1.
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## self value ifFalse: [ ^nil "^self" ].
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## aBlock value.
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## thisContext pc: pc sp: sp.
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## --------------------------------------------------
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## --------------------------------------------------
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## If VM is built with STIX_USE_PROCSTK
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## Non-recursive implementation
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## --------------------------------------------------
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| pc sp |
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@ -404,7 +393,7 @@
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## self whileTrue.
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## --------------------------------------------------
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## If VM is built with STIX_USE_PROCSTK
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## Non-recursive implementation
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## --------------------------------------------------
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| pc |
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pc := thisContext pcplus1.
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@ -424,18 +413,7 @@
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## --------------------------------------------------
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## --------------------------------------------------
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## If VM is built without STIX_USE_PROCSTK
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## --------------------------------------------------
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## | pc sp |
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## sp := thisContext sp.
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## pc := thisContext pcplus1.
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## self value ifTrue: [ ^nil "^self" ].
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## aBlock value.
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## thisContext pc: pc sp: sp.
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## --------------------------------------------------
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## --------------------------------------------------
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## If VM is built with STIX_USE_PROCSTK
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## Non-recursive implementation
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## --------------------------------------------------
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## The assignment to 'pc' uses the POP_INTO_TEMPVAR_1.
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## It pops a value off the stack top, stores it to the second
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@ -463,7 +441,7 @@
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## self whileFalse.
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## --------------------------------------------------
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## If VM is built with STIX_USE_PROCSTK
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## Non-recursive implementation
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## --------------------------------------------------
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| pc |
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pc := thisContext pcplus1.
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167
stix/lib/exec.c
167
stix/lib/exec.c
@ -50,6 +50,12 @@
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# endif
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#endif
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#if defined(USE_DYNCALL)
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/* TODO: defined dcAllocMem and dcFreeMeme before builing the dynload and dyncall library */
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# include <dyncall.h> /* TODO: remove this. make dyXXXX calls to callbacks */
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#endif
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#define PROC_STATE_RUNNING 3
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#define PROC_STATE_WAITING 2
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#define PROC_STATE_RUNNABLE 1
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@ -70,18 +76,6 @@
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(STIX_OOP_TO_SMOOI((x)->heap_ftime_sec) == STIX_OOP_TO_SMOOI((y)->heap_ftime_sec) && STIX_OOP_TO_SMOOI((x)->heap_ftime_nsec) < STIX_OOP_TO_SMOOI((y)->heap_ftime_nsec)) \
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)
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#if defined(USE_DYNCALL)
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/* TODO: defined dcAllocMem and dcFreeMeme before builing the dynload and dyncall library */
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# include <dyncall.h> /* TODO: remove this. make dyXXXX calls to callbacks */
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#endif
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/* TODO: context's stack overflow check in various part of this file */
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/* TOOD: determine the right stack size */
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#if defined(STIX_USE_PROCSTK)
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# define CONTEXT_STACK_SIZE 0
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#else
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# define CONTEXT_STACK_SIZE 96
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#endif
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#define LOAD_IP(stix, v_ctx) ((stix)->ip = STIX_OOP_TO_SMOOI((v_ctx)->ip))
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#define STORE_IP(stix, v_ctx) ((v_ctx)->ip = STIX_SMOOI_TO_OOP((stix)->ip))
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@ -92,38 +86,18 @@
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#define LOAD_ACTIVE_IP(stix) LOAD_IP(stix, (stix)->active_context)
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#define STORE_ACTIVE_IP(stix) STORE_IP(stix, (stix)->active_context)
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#if defined(STIX_USE_PROCSTK)
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#define LOAD_ACTIVE_SP(stix) LOAD_SP(stix, (stix)->processor->active)
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#define STORE_ACTIVE_SP(stix) STORE_SP(stix, (stix)->processor->active)
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#else
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#define LOAD_ACTIVE_SP(stix) LOAD_SP(stix, (stix)->active_context)
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#define STORE_ACTIVE_SP(stix) STORE_SP(stix, (stix)->active_context)
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#endif
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#define LOAD_ACTIVE_SP(stix) LOAD_SP(stix, (stix)->processor->active)
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#define STORE_ACTIVE_SP(stix) STORE_SP(stix, (stix)->processor->active)
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#if defined(STIX_USE_PROCSTK)
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#define SWITCH_ACTIVE_CONTEXT(stix,v_ctx) \
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do \
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{ \
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STORE_ACTIVE_IP (stix); \
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(stix)->active_context = (v_ctx); \
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(stix)->active_method = (stix_oop_method_t)(stix)->active_context->origin->method_or_nargs; \
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SET_ACTIVE_METHOD_CODE(stix); \
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LOAD_ACTIVE_IP (stix); \
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} while (0)
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#else
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#define SWITCH_ACTIVE_CONTEXT(stix,v_ctx) \
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do \
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{ \
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STORE_ACTIVE_IP (stix); \
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STORE_ACTIVE_SP (stix); \
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(stix)->active_context = (v_ctx); \
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(stix)->active_method = (stix_oop_method_t)(stix)->active_context->origin->method_or_nargs; \
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SET_ACTIVE_METHOD_CODE(stix); \
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LOAD_ACTIVE_IP (stix); \
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LOAD_ACTIVE_SP (stix); \
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} while (0)
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#endif
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#define SWITCH_ACTIVE_CONTEXT(stix,v_ctx) \
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do \
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{ \
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STORE_ACTIVE_IP (stix); \
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(stix)->active_context = (v_ctx); \
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(stix)->active_method = (stix_oop_method_t)(stix)->active_context->origin->method_or_nargs; \
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SET_ACTIVE_METHOD_CODE(stix); \
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LOAD_ACTIVE_IP (stix); \
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} while (0)
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#define FETCH_BYTE_CODE(stix) ((stix)->active_code[(stix)->ip++])
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#define FETCH_BYTE_CODE_TO(stix, v_ooi) (v_ooi = FETCH_BYTE_CODE(stix))
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@ -317,11 +291,7 @@ static STIX_INLINE void sleep_active_process (stix_t* stix, int state)
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STIX_LOG3 (stix, STIX_LOG_IC | STIX_LOG_DEBUG, "Processor - put process %O context %O ip=%zd to sleep\n", stix->processor->active, stix->active_context, stix->ip);
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#endif
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#if defined(STIX_USE_PROCSTK)
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STORE_ACTIVE_SP(stix);
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#else
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/* nothing special */
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#endif
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/* store the current active context to the current process.
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* it is the suspended context of the process to be suspended */
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@ -336,11 +306,7 @@ static STIX_INLINE void wake_new_process (stix_t* stix, stix_oop_process_t proc)
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proc->state = STIX_SMOOI_TO_OOP(PROC_STATE_RUNNING);
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stix->processor->active = proc;
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#if defined(STIX_USE_PROCSTK)
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LOAD_ACTIVE_SP(stix);
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#else
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/* nothing special */
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#endif
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/* activate the suspended context of the new process */
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SWITCH_ACTIVE_CONTEXT (stix, proc->current_context);
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@ -921,50 +887,21 @@ static STIX_INLINE int activate_new_method (stix_t* stix, stix_oop_method_t mth)
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STIX_ASSERT (ntmprs >= 0);
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STIX_ASSERT (nargs <= ntmprs);
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#if defined(STIX_USE_PROCSTK)
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/* nothing special */
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#else
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/* message sending requires a receiver to be pushed.
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* the stack pointer of the sending context cannot be -1.
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* if one-argumented message is invoked the stack of the
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* sending context looks like this.
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*
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* Sending Context
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*
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* +---------------------+
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* | fixed part |
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* | |
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* | |
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* | |
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* +---------------------+
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* | .... | slot[0]
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* | .... | slot[..]
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* | .... | slot[..]
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* | receiver | slot[..] <-- sp - nargs(1)
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* | arg1 | slot[..] <-- sp
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* | .... | slot[..]
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* | | slot[stack_size - 1]
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* +---------------------+
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*/
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STIX_ASSERT (stix->sp >= 0);
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STIX_ASSERT (stix->sp >= nargs);
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#endif
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stix_pushtmp (stix, (stix_oop_t*)&mth);
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ctx = (stix_oop_context_t)stix_instantiate (stix, stix->_method_context, STIX_NULL, ntmprs + CONTEXT_STACK_SIZE);
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ctx = (stix_oop_context_t)stix_instantiate (stix, stix->_method_context, STIX_NULL, ntmprs);
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stix_poptmp (stix);
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if (!ctx) return -1;
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ctx->sender = stix->active_context;
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ctx->ip = STIX_SMOOI_TO_OOP(0);
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#if defined(STIX_USE_PROCSTK)
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/* ctx->sp will be set further down */
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#else
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/* the front part of a stack has temporary variables including arguments.
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*
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* New Context
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/* A context is compose of a fixed part and a variable part.
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* the variable part hold temporary varibles including arguments.
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*
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* Assuming a method context with 2 arguments and 3 local temporary
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* variables, the context will look like this.
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* +---------------------+
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* | fixed part |
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* | |
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@ -973,18 +910,12 @@ static STIX_INLINE int activate_new_method (stix_t* stix, stix_oop_method_t mth)
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* +---------------------+
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* | tmp1 (arg1) | slot[0]
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* | tmp2 (arg2) | slot[1]
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* | .... | slot[..]
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* | tmpX | slot[..] <-- initial sp
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* | | slot[..]
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* | | slot[..]
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* | | slot[stack_size - 2]
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* | | slot[stack_size - 1]
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* | tmp3 | slot[2]
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* | tmp4 | slot[3]
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* | tmp5 | slot[4]
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* +---------------------+
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*
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* if no temporaries exist, the initial sp is -1.
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*/
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ctx->sp = STIX_SMOOI_TO_OOP(ntmprs - 1);
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#endif
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ctx->ntmprs = STIX_SMOOI_TO_OOP(ntmprs);
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ctx->method_or_nargs = (stix_oop_t)mth;
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/* the 'home' field of a method context is always stix->_nil.
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@ -1024,18 +955,13 @@ static STIX_INLINE int activate_new_method (stix_t* stix, stix_oop_method_t mth)
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STIX_ASSERT (stix->sp >= -1);
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#if defined(STIX_USE_PROCSTK)
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/* when process stack is used, the stack pointer in a context
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* is a stack pointer of a process before it is activated.
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* this stack pointer is stored to the context so that it is
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* used to restore the process stack pointer upon returning from
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* a method context. */
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/* the stack pointer in a context is a stack pointer of a process
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* before it is activated. this stack pointer is stored to the context
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* so that it is used to restore the process stack pointer upon returning
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* from a method context. */
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ctx->sp = STIX_SMOOI_TO_OOP(stix->sp);
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#else
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/* do nothing */
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#endif
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/* switch the active context */
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/* switch the active context to the newly instantiated one*/
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SWITCH_ACTIVE_CONTEXT (stix, ctx);
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return 0;
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@ -1134,15 +1060,8 @@ static int start_initial_process_and_context (stix_t* stix, const stix_oocs_t* o
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stix_oop_method_t mth;
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stix_oop_process_t proc;
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/* create a fake initial context */
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#if defined(STIX_USE_PROCSTK)
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/* create a fake initial context. */
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ctx = (stix_oop_context_t)stix_instantiate (stix, stix->_method_context, STIX_NULL, 0);
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#else
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/* stack size is set to 1 because it needs sapce to push the receiver
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* referenced by 'objname' */
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/* TODO: increase the stack size to allow arguments to the intial methods */
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ctx = (stix_oop_context_t)stix_instantiate (stix, stix->_method_context, STIX_NULL, 1);
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#endif
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if (!ctx) return -1;
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ass = stix_lookupsysdic (stix, objname);
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@ -1664,7 +1583,7 @@ STIX_DEBUG0 (stix, "PRIM BlockContext value FAIL - NARGS MISMATCH\n");
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STIX_ASSERT (local_ntmprs >= actual_arg_count);
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/* create a new block context to clone rcv_blkctx */
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blkctx = (stix_oop_context_t) stix_instantiate (stix, stix->_block_context, STIX_NULL, local_ntmprs + CONTEXT_STACK_SIZE);
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blkctx = (stix_oop_context_t) stix_instantiate (stix, stix->_block_context, STIX_NULL, local_ntmprs);
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if (!blkctx) return -1;
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/* get rcv_blkctx again to be GC-safe for stix_instantiate() above */
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@ -1712,11 +1631,7 @@ STIX_DEBUG0 (stix, "PRIM BlockContext value FAIL - NARGS MISMATCH\n");
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STIX_STACK_POPS (stix, nargs + 1); /* pop arguments and receiver */
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STIX_ASSERT (blkctx->home != stix->_nil);
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#if defined(STIX_USE_PROCSTK)
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blkctx->sp = STIX_SMOOI_TO_OOP(-1); /* not important at all */
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#else
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blkctx->sp = STIX_SMOOI_TO_OOP(local_ntmprs - 1);
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#endif
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blkctx->sender = stix->active_context;
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*pblkctx = blkctx;
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@ -3931,12 +3846,8 @@ return -1;
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}
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STIX_ASSERT (STIX_CLASSOF(stix, stix->active_context->origin) == stix->_method_context);
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#if defined(STIX_USE_PROCSTK)
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/* restore the stack pointer */
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stix->sp = STIX_OOP_TO_SMOOI(stix->active_context->origin->sp);
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#else
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/* do nothing */
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#endif
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SWITCH_ACTIVE_CONTEXT (stix, stix->active_context->origin->sender);
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if (unwind_protect)
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@ -4011,19 +3922,9 @@ return -1;
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/* it is a normal block return as the active block context
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* is not the initial context of a process */
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#if defined(STIX_USE_PROCSTK)
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/* the process stack is shared. the return value
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* doesn't need to get moved. */
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SWITCH_ACTIVE_CONTEXT (stix, (stix_oop_context_t)stix->active_context->sender);
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#else
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/* NOTE: GC must not performed between here and */
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return_value = STIX_STACK_GETTOP(stix);
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STIX_STACK_POP (stix); /* pop off the return value */
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SWITCH_ACTIVE_CONTEXT (stix, (stix_oop_context_t)stix->active_context->sender);
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STIX_STACK_PUSH (stix, return_value); /* push it to the sender */
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/* NOTE: here. if so, return_value will point to a garbage. */
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#endif
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}
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break;
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@ -221,7 +221,6 @@ static stix_uint8_t* scan_new_heap (stix_t* stix, stix_uint8_t* ptr)
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stix_oop_oop_t xtmp;
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stix_oow_t size;
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#if defined(STIX_USE_PROCSTK)
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if (stix->_process && STIX_OBJ_GET_CLASS(oop) == stix->_process)
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{
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/* the stack in a process object doesn't need to be
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@ -231,18 +230,6 @@ static stix_uint8_t* scan_new_heap (stix_t* stix, stix_uint8_t* ptr)
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STIX_OOP_TO_SMOOI(((stix_oop_process_t)oop)->sp) + 1;
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STIX_ASSERT (size <= STIX_OBJ_GET_SIZE(oop));
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}
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#else
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if ((stix->_method_context && STIX_OBJ_GET_CLASS(oop) == stix->_method_context) ||
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(stix->_block_context && STIX_OBJ_GET_CLASS(oop) == stix->_block_context))
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{
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/* the stack in a context object doesn't need to be
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* scanned in full. the slots above the stack pointer
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* are garbages. */
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size = STIX_CONTEXT_NAMED_INSTVARS +
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STIX_OOP_TO_SMOOI(((stix_oop_context_t)oop)->sp) + 1;
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STIX_ASSERT (size <= STIX_OBJ_GET_SIZE(oop));
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}
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#endif
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else
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{
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size = STIX_OBJ_GET_SIZE(oop);
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@ -280,14 +267,11 @@ void stix_gc (stix_t* stix)
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if (stix->active_context)
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{
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/* TODO: verify if this is correct */
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#if defined(STIX_USE_PROCSTK)
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/*STIX_ASSERT ((stix_oop_t)stix->processor != stix->_nil);
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if ((stix_oop_t)stix->processor->active != stix->_nil)*/
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stix->processor->active->sp = STIX_SMOOI_TO_OOP(stix->sp);
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#else
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/* store the stack pointer to the active context */
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stix->active_context->sp = STIX_SMOOI_TO_OOP(stix->sp);
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#endif
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STIX_ASSERT ((stix_oop_t)stix->processor != stix->_nil);
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STIX_ASSERT ((stix_oop_t)stix->processor->active != stix->_nil);
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/* store the stack pointer to the active process */
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stix->processor->active->sp = STIX_SMOOI_TO_OOP(stix->sp);
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/* store the instruction pointer to the active context */
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stix->active_context->ip = STIX_SMOOI_TO_OOP(stix->ip);
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@ -33,9 +33,6 @@
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/* TODO: move this macro out to the build files.... */
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#define STIX_INCLUDE_COMPILER
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/* define this to use the stack allocated inside process stack */
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#define STIX_USE_PROCSTK
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/* define this to allow an pointer(OOP) object to have trailing bytes
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* this is used to embed bytes codes into the back of a compile method
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* object instead of putting in in a separate byte array. */
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@ -531,9 +528,11 @@ struct stix_context_t
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/* SmallInteger, instruction pointer */
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stix_oop_t ip;
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/* SmallInteger, stack pointer.
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* For a method context, this pointer stores the stack pointer
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* of the active process before it gets activated. */
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/* SmallInteger, stack pointer. the actual stack pointer is in the active
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* process. For a method context, it stores the stack pointer of the active
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* process before it gets activated. the stack pointer of the active
|
||||
* process is restored using this value upon returning. This field is
|
||||
* almost useless for a block context. */
|
||||
stix_oop_t sp;
|
||||
|
||||
/* SmallInteger. Number of temporaries.
|
||||
@ -541,7 +540,6 @@ struct stix_context_t
|
||||
* defined its 'home'. */
|
||||
stix_oop_t ntmprs;
|
||||
|
||||
|
||||
/* CompiledMethod for a method context,
|
||||
* SmallInteger for a block context */
|
||||
stix_oop_t method_or_nargs;
|
||||
@ -862,27 +860,16 @@ struct stix_t
|
||||
#endif
|
||||
};
|
||||
|
||||
#if defined(STIX_USE_PROCSTK)
|
||||
|
||||
/* TODO: stack bound check when pushing */
|
||||
#define STIX_STACK_PUSH(stix,v) \
|
||||
do { \
|
||||
(stix)->sp = (stix)->sp + 1; \
|
||||
(stix)->processor->active->slot[(stix)->sp] = v; \
|
||||
} while (0)
|
||||
#define STIX_STACK_PUSH(stix,v) \
|
||||
do { \
|
||||
(stix)->sp = (stix)->sp + 1; \
|
||||
(stix)->processor->active->slot[(stix)->sp] = v; \
|
||||
} while (0)
|
||||
|
||||
#define STIX_STACK_GET(stix,v_sp) ((stix)->processor->active->slot[v_sp])
|
||||
#define STIX_STACK_SET(stix,v_sp,v_obj) ((stix)->processor->active->slot[v_sp] = v_obj)
|
||||
|
||||
#else
|
||||
#define STIX_STACK_PUSH(stix,v) \
|
||||
do { \
|
||||
(stix)->sp = (stix)->sp + 1; \
|
||||
(stix)->active_context->slot[(stix)->sp] = v; \
|
||||
} while (0)
|
||||
|
||||
#define STIX_STACK_GET(stix,v_sp) ((stix)->active_context->slot[v_sp])
|
||||
#define STIX_STACK_SET(stix,v_sp,v_obj) ((stix)->active_context->slot[v_sp] = v_obj)
|
||||
#endif
|
||||
#define STIX_STACK_GET(stix,v_sp) ((stix)->processor->active->slot[v_sp])
|
||||
#define STIX_STACK_SET(stix,v_sp,v_obj) ((stix)->processor->active->slot[v_sp] = v_obj)
|
||||
|
||||
#define STIX_STACK_GETTOP(stix) STIX_STACK_GET(stix, (stix)->sp)
|
||||
#define STIX_STACK_SETTOP(stix,v_obj) STIX_STACK_SET(stix, (stix)->sp, v_obj)
|
||||
@ -891,7 +878,6 @@ struct stix_t
|
||||
#define STIX_STACK_POPS(stix,count) ((stix)->sp = (stix)->sp - (count))
|
||||
#define STIX_STACK_ISEMPTY(stix) ((stix)->sp <= -1)
|
||||
|
||||
|
||||
/* =========================================================================
|
||||
* STIX VM LOGGING
|
||||
* ========================================================================= */
|
||||
|
Loading…
Reference in New Issue
Block a user