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Diffstat (limited to 'sim/ppc/e500_registers.h')
-rw-r--r-- | sim/ppc/e500_registers.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sim/ppc/e500_registers.h b/sim/ppc/e500_registers.h new file mode 100644 index 0000000..cd12ab5 --- /dev/null +++ b/sim/ppc/e500_registers.h @@ -0,0 +1,83 @@ +/* e500 registers, for PSIM, the PowerPC simulator. + + Copyright 2003 Free Software Foundation, Inc. + + Contributed by Red Hat Inc; developed under contract from Motorola. + Written by matthew green <mrg@redhat.com>. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* e500 accumulator. */ + +typedef unsigned64 accreg; + +enum { + msr_e500_spu_enable = BIT(38) +}; + +/* E500 regsiters. */ + +enum + { + spefscr_sovh = BIT(32), /* summary integer overlow (high) */ + spefscr_ovh = BIT(33), /* int overflow (high) */ + spefscr_fgh = BIT(34), /* FP guard (high) */ + spefscr_fxh = BIT(35), /* FP sticky (high) */ + spefscr_finvh = BIT(36), /* FP invalid operand (high) */ + spefscr_fdbzh = BIT(37), /* FP divide by zero (high) */ + spefscr_funfh = BIT(38), /* FP underflow (high) */ + spefscr_fovfh = BIT(39), /* FP overflow (high) */ + spefscr_finxs = BIT(42), /* FP inexact sticky */ + spefscr_finvs = BIT(43), /* FP invalid operand sticky */ + spefscr_fdbzs = BIT(44), /* FP divide by zero sticky */ + spefscr_funfs = BIT(45), /* FP underflow sticky */ + spefscr_fovfs = BIT(46), /* FP overflow sticky */ + spefscr_mode = BIT(47), /* SPU MODE (read only) */ + spefscr_sov = BIT(48), /* Summary integer overlow (low) */ + spefscr_ov = BIT(49), /* int overflow (low) */ + spefscr_fg = BIT(50), /* FP guard (low) */ + spefscr_fx = BIT(51), /* FP sticky (low) */ + spefscr_finv = BIT(52), /* FP invalid operand (low) */ + spefscr_fdbz = BIT(53), /* FP divide by zero (low) */ + spefscr_funf = BIT(54), /* FP underflow (low) */ + spefscr_fovf = BIT(55), /* FP overflow (low) */ + spefscr_finxe = BIT(57), /* FP inexact enable */ + spefscr_finve = BIT(58), /* FP invalid operand enable */ + spefscr_fdbze = BIT(59), /* FP divide by zero enable */ + spefscr_funfe = BIT(60), /* FP underflow enable */ + spefscr_fovfe = BIT(61), /* FP overflow enable */ + spefscr_frmc0 = BIT(62), /* FP round mode control */ + spefscr_frmc1 = BIT(63), + spefscr_frmc = (spefscr_frmc0 | spefscr_frmc1), +}; + +struct e500_regs { + /* e500 high bits. */ + signed_word gprh[32]; + /* Accumulator */ + accreg acc; +}; + +/* SPE partially visible acculator */ +#define ACC cpu_registers(processor)->e500.acc + +/* e500 register high bits */ +#define GPRH(N) cpu_registers(processor)->e500.gprh[N] + +/* e500 unified vector register */ +#define EVR(N) ((((unsigned64)GPRH(N)) << 32) | GPR(N)) |