Mercurial > hg > CbC > CbC_gcc
view gcc/config/nds32/nds32_init.inc @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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/* * nds32_init.inc * * NDS32 architecture startup assembler header file * */ .macro nds32_init ! Initialize GP for data access la $gp, _SDA_BASE_ #if defined(__NDS32_EXT_EX9__) ! Check HW for EX9 mfsr $r0, $MSC_CFG li $r1, (1 << 24) and $r2, $r0, $r1 beqz $r2, 1f ! Initialize the table base of EX9 instruction la $r0, _ITB_BASE_ mtusr $r0, $ITB 1: #endif #if defined(__NDS32_EXT_FPU_DP__) || defined(__NDS32_EXT_FPU_SP__) ! Enable FPU mfsr $r0, $FUCOP_CTL ori $r0, $r0, #0x1 mtsr $r0, $FUCOP_CTL dsb ! Enable denormalized flush-to-Zero mode fmfcsr $r0 ori $r0,$r0,#0x1000 fmtcsr $r0 dsb #endif ! Initialize default stack pointer la $sp, _stack .endm