76 lines
2.4 KiB
ArmAsm
76 lines
2.4 KiB
ArmAsm
;********************************************************************************************************
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; uC/CPU
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; CPU CONFIGURATION & PORT LAYER
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;
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; Copyright 2004-2021 Silicon Laboratories Inc. www.silabs.com
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;
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; SPDX-License-Identifier: APACHE-2.0
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;
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; This software is subject to an open source license and is distributed by
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; Silicon Laboratories Inc. pursuant to the terms of the Apache License,
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; Version 2.0 available at www.apache.org/licenses/LICENSE-2.0.
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;
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;********************************************************************************************************
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;********************************************************************************************************
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;
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; CPU PORT FILE
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;
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; Renesas RX Specific code
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; GNU RX C Compiler
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;
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; Filename : cpu_a.s
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; Version : V1.32.01
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;********************************************************************************************************
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;********************************************************************************************************
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; PUBLIC FUNCTIONS
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;********************************************************************************************************
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.global _set_ipl
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.global _get_ipl
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.global _set_intb
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.text
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;********************************************************************************************************
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; set_ipl() & get_ipl()
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;
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; Description: Set or retrieve interrupt priority level.
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;********************************************************************************************************
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_set_ipl:
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PUSH R2
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MVFC PSW, R2
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AND #-0F000001H, R2
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SHLL #24, R1
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OR R1, R2
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MVTC R2, PSW
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POP R2
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RTS
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_get_ipl:
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MVFC PSW, R1
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SHLR #24, R1
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AND #15, R1
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RTS
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;********************************************************************************************************
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; set_intb()
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;
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; Description: Set the interrupt base register
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;********************************************************************************************************
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_set_intb:
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PUSH R2
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mvtc R1, intb
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POP R2
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RTS
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.END
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