factor/vm/cpu-x86.S

71 lines
2.5 KiB
ArmAsm

#define JUMP_QUOT \
mov QUOT_XT_OFFSET(ARG0),XT_REG ; /* Load quot-xt */ \
jmp *XT_REG /* Jump to quot-xt */
DEF(F_FASTCALL void,c_to_factor,(CELL quot)):
PUSH_NONVOLATILE
push ARG0 /* Save quot */
lea -CELL_SIZE(STACK_REG),ARG0 /* Save stack pointer */
call MANGLE(save_callstack_bottom)
mov (STACK_REG),ARG0 /* Pass quot as arg 1 */
mov QUOT_XT_OFFSET(ARG0),XT_REG
call *XT_REG /* Call quot-xt */
POP ARG0
POP_NONVOLATILE
ret
DEF(F_FASTCALL void,undefined,(CELL word)):
mov STACK_REG,ARG1 /* Pass callstack pointer */
jmp MANGLE(undefined_error) /* This throws an error */
DEF(F_FASTCALL void,dosym,(CELL word)):
add $CELL_SIZE,DS_REG /* Increment stack pointer */
mov ARG0,(DS_REG) /* Store word on stack */
ret
/* Here we have two entry points. The first one is taken when profiling is
enabled */
DEF(F_FASTCALL void,docol_profiling,(CELL word)):
add $8,PROFILING_OFFSET(ARG0) /* Increment profile-count slot */
DEF(F_FASTCALL void,docol,(CELL word)):
mov WORD_DEF_OFFSET(ARG0),ARG0 /* Load word-def slot */
JUMP_QUOT
/* We must pass the XT to the quotation in ECX. */
DEF(F_FASTCALL void,primitive_call,(void)):
mov (DS_REG),ARG0 /* Load quotation from data stack */
sub $CELL_SIZE,DS_REG /* Pop data stack */
JUMP_QUOT
/* We pass the word in EAX and the XT in ECX. Don't mess up EDX, it's the
callstack top parameter to primitives. */
DEF(F_FASTCALL void,primitive_execute,(void)):
mov (DS_REG),ARG0 /* Load word from data stack */
sub $CELL_SIZE,DS_REG /* Pop data stack */
mov WORD_XT_OFFSET(ARG0),XT_REG /* Load word-xt slot */
jmp *XT_REG /* Go */
DEF(F_FASTCALL void,throw_impl,(CELL quot, F_STACK_FRAME *rewind_to)):
mov ARG1,STACK_REG /* rewind_to */
JUMP_QUOT
DEF(FASTCALL void,lazy_jit_compile,(CELL quot)):
mov STACK_REG,ARG1 /* Save stack pointer */
push XT_REG /* Alignment */
push XT_REG
push XT_REG
call MANGLE(primitive_jit_compile)
mov RETURN_REG,ARG0 /* No-op on 32-bit */
pop XT_REG /* OK to clobber XT_REG here */
pop XT_REG
pop XT_REG
JUMP_QUOT /* Call the quotation */
#ifdef WINDOWS
.section .drectve
.ascii " -export:c_to_factor"
#endif