diff options
| author | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2014-09-01 12:59:58 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-09-01 14:49:21 +0100 |
| commit | 5de93515f995066f709f6e1af5531a36ce6766bd (patch) | |
| tree | 73aa0ddf73a2ac68d3239a395ef1dcc19365b548 /target-tricore/op_helper.c | |
| parent | a47b50db609f95edf5b2f964a7a8087f094cfcfa (diff) | |
target-tricore: Add instructions of SC opcode format
Add instructions of SC opcode format.
Add helper for begin interrupt service routine.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-id: 1409572800-4116-14-git-send-email-kbastian@mail.uni-paderborn.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-tricore/op_helper.c')
| -rw-r--r-- | target-tricore/op_helper.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c index 990d46365b..bb55a4991a 100644 --- a/target-tricore/op_helper.c +++ b/target-tricore/op_helper.c @@ -122,6 +122,28 @@ static void save_context_upper(CPUTriCoreState *env, int ea, } +static void save_context_lower(CPUTriCoreState *env, int ea, + target_ulong *new_FCX) +{ + *new_FCX = cpu_ldl_data(env, ea); + cpu_stl_data(env, ea, env->PCXI); + cpu_stl_data(env, ea+4, env->PSW); + cpu_stl_data(env, ea+8, env->gpr_a[2]); + cpu_stl_data(env, ea+12, env->gpr_a[3]); + cpu_stl_data(env, ea+16, env->gpr_d[0]); + cpu_stl_data(env, ea+20, env->gpr_d[1]); + cpu_stl_data(env, ea+24, env->gpr_d[2]); + cpu_stl_data(env, ea+28, env->gpr_d[3]); + cpu_stl_data(env, ea+32, env->gpr_a[4]); + cpu_stl_data(env, ea+36, env->gpr_a[5]); + cpu_stl_data(env, ea+40, env->gpr_a[6]); + cpu_stl_data(env, ea+44, env->gpr_a[7]); + cpu_stl_data(env, ea+48, env->gpr_d[4]); + cpu_stl_data(env, ea+52, env->gpr_d[5]); + cpu_stl_data(env, ea+56, env->gpr_d[6]); + cpu_stl_data(env, ea+60, env->gpr_d[7]); +} + static void restore_context_upper(CPUTriCoreState *env, int ea, target_ulong *new_PCXI, target_ulong *new_PSW) { @@ -243,6 +265,43 @@ void helper_ret(CPUTriCoreState *env) } } +void helper_bisr(CPUTriCoreState *env, uint32_t const9) +{ + target_ulong tmp_FCX; + target_ulong ea; + target_ulong new_FCX; + + if (env->FCX == 0) { + /* FCU trap */ + } + + tmp_FCX = env->FCX; + ea = ((env->FCX & 0xf0000) << 12) + ((env->FCX & 0xffff) << 6); + + save_context_lower(env, ea, &new_FCX); + + /* PCXI.PCPN = ICR.CCPN */ + env->PCXI = (env->PCXI & 0xffffff) + + ((env->ICR & MASK_ICR_CCPN) << 24); + /* PCXI.PIE = ICR.IE */ + env->PCXI = ((env->PCXI & ~MASK_PCXI_PIE) + + ((env->ICR & MASK_ICR_IE) << 15)); + /* PCXI.UL = 0 */ + env->PCXI &= ~(MASK_PCXI_UL); + /* PCXI[19: 0] = FCX[19: 0] */ + env->PCXI = (env->PCXI & 0xfff00000) + (env->FCX & 0xfffff); + /* FXC[19: 0] = new_FCX[19: 0] */ + env->FCX = (env->FCX & 0xfff00000) + (new_FCX & 0xfffff); + /* ICR.IE = 1 */ + env->ICR |= MASK_ICR_IE; + + env->ICR |= const9; /* ICR.CCPN = const9[7: 0];*/ + + if (tmp_FCX == env->LCX) { + /* FCD trap */ + } +} + static inline void QEMU_NORETURN do_raise_exception_err(CPUTriCoreState *env, uint32_t exception, int error_code, |