1 #ifndef CYGONCE_HAL_VARIANT_INC
2 #define CYGONCE_HAL_VARIANT_INC
4 |==========================================================================
8 | MCF5272 variant assembler header file
10 |==========================================================================
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41 |=============================================================================
42 |#####DESCRIPTIONBEGIN####
44 | Author(s): Enrico Piria
47 | Purpose: MCF5272 variant definitions.
48 | Description: This file contains the definitions specific to the
49 | CPU variant, used in the architecture HAL assembler file.
50 | Usage: Included by "vectors.S". Do not use directly.
52 |####DESCRIPTIONEND####
53 |==========================================================================
55 #include <cyg/hal/platform.inc>
58 | -----------------------------------------------------------------------------
59 | CPU specific macros. These provide a common assembler interface to
60 | operations that may have CPU specific implementations on different
61 | variants of the architecture.
63 | CPU initialization macro
66 | Invalidate and disable the cache and ACRs.
67 move.l #0x01000000,%d0
76 | ----------------------------------------------------------------------------
77 | This macro retrieves the IPL of the current interrupt from the
78 | interrupt controller register. This is needed because on inetrrupt entry
79 | all interrupts are disabled by writing to the status register, and thus
80 | loosing the current IPL.
81 | Input: interrupt vector number in d0
82 | Output: IPL associated to interrupt in d0
84 .macro hal_variant_retrieve_ipl
86 | Subtract minimum interrupt vector number
87 sub.l #CYGNUM_HAL_ISR_MIN,%d0
89 | Load IPL table address in a0
90 lea cyg_hal_ILVL_table,%a0
92 | Retrieve IPL level for current interrupt
93 move.b (%a0,%d0.l),%d0
97 | ----------------------------------------------------------------------------
99 #endif // ifndef CYGONCE_HAL_VARIANT_INC