FreeCalypso > hg > fc-selenite
view src/cs/system/main/gcc/irq_twiddle.S @ 137:6b94853890cf
AT-over-RVT enhancement from Magnetite
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 09 Jan 2019 07:54:47 +0000 |
parents | 95ef11e76c5b |
children |
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/* * TI's L1 code (and possibly other parts of the software suite) calls * functions named INT_DisableIRQ() and INT_EnableIRQ(); in TI's original * fw they are implemented (in a very ugly manner, as usual) in the * int.s entry point assembly module. Here we implement the same * functions in a cleaner way. */ #include "asm_defs.h" .code 32 .text .globl INT_DisableIRQ INT_DisableIRQ: mrs r0, CPSR orr r0, r0, #LOCKOUT msr CPSR, r0 bx lr .globl INT_EnableIRQ INT_EnableIRQ: mrs r0, CPSR bic r0, r0, #LOCKOUT msr CPSR, r0 bx lr