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comparison packages/hal/mips/arch/current/src/vectors.S @ 48:1370c5e55234 ecos-sw-1999-10-25

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Merge from eCos master repository on 1999-10-25-21:18:27-BST
author jlarmour
date Mon, 25 Oct 1999 20:48:32 +0000
parents e7ba79f6d3a8
children a0774359f013
comparison
equal deleted inserted replaced
47:dda182546c3f 48:1370c5e55234
498 # Need to set up back pointers etc. ??? 498 # Need to set up back pointers etc. ???
499 499
500 # Decode external interrupt via interrupt controller 500 # Decode external interrupt via interrupt controller
501 501
502 hal_intc_decode s2 502 hal_intc_decode s2
503 503
504 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN 504 # Here, s2 contains the number of the interrupt being serviced,
505 move s1,zero # Just vector zero is supported 505 # we need to derive from that the vector number to call in the ISR
506 #else 506 # table.
507 move s1,s2 # Vector == interrupt number 507
508 #endif 508 hal_intc_translate s2,s1
509 509
510 # Here s1 is the number of the vector to be called and s2 is 510 # Here s1 is the number of the vector to be called and s2 is
511 # the number of the interrupt being serviced. 511 # the number of the interrupt being serviced.
512 512
513 hal_diag_intr_start 513 hal_diag_intr_start
514 514
517 # Call cyg_instrument to record that this interrupt is being raised. 517 # Call cyg_instrument to record that this interrupt is being raised.
518 518
519 li a0,0x0301 # a0 = type = INTR,RAISE 519 li a0,0x0301 # a0 = type = INTR,RAISE
520 move a1,s1 # a1 = vector number 520 move a1,s1 # a1 = vector number
521 jal cyg_instrument # call instrument function 521 jal cyg_instrument # call instrument function
522 xor a2,a2,a2 # arg2 = 0 (delay slot) 522 move a2,s2 # a2 = interrupt number
523 #endif 523 #endif
524 524
525 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) 525 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT)
526 # If we are supporting Ctrl-C interrupts from GDB, we must squirrel 526 # If we are supporting Ctrl-C interrupts from GDB, we must squirrel
527 # away a pointer to the save interrupt state here so that we can 527 # away a pointer to the save interrupt state here so that we can