diff options
Diffstat (limited to 'target/xtensa/win_helper.c')
| -rw-r--r-- | target/xtensa/win_helper.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/target/xtensa/win_helper.c b/target/xtensa/win_helper.c index 7d793d4f9c..f6f96a64c3 100644 --- a/target/xtensa/win_helper.c +++ b/target/xtensa/win_helper.c @@ -96,9 +96,9 @@ void xtensa_rotate_window(CPUXtensaState *env, uint32_t delta) xtensa_rotate_window_abs(env, env->sregs[WINDOW_BASE] + delta); } -void HELPER(wsr_windowbase)(CPUXtensaState *env, uint32_t v) +void HELPER(sync_windowbase)(CPUXtensaState *env) { - xtensa_rotate_window_abs(env, v); + xtensa_rotate_window_abs(env, env->windowbase_next); } void HELPER(entry)(CPUXtensaState *env, uint32_t pc, uint32_t s, uint32_t imm) @@ -106,9 +106,8 @@ void HELPER(entry)(CPUXtensaState *env, uint32_t pc, uint32_t s, uint32_t imm) int callinc = (env->sregs[PS] & PS_CALLINC) >> PS_CALLINC_SHIFT; env->regs[(callinc << 2) | (s & 3)] = env->regs[s] - imm; - xtensa_rotate_window(env, callinc); - env->sregs[WINDOW_START] |= - windowstart_bit(env->sregs[WINDOW_BASE], env); + env->windowbase_next = env->sregs[WINDOW_BASE] + callinc; + env->sregs[WINDOW_START] |= windowstart_bit(env->windowbase_next, env); } void HELPER(window_check)(CPUXtensaState *env, uint32_t pc, uint32_t w) @@ -185,20 +184,11 @@ void HELPER(test_underflow_retw)(CPUXtensaState *env, uint32_t pc) } } -uint32_t HELPER(retw)(CPUXtensaState *env, uint32_t pc) +void HELPER(retw)(CPUXtensaState *env, uint32_t a0) { - int n = (env->regs[0] >> 30) & 0x3; - uint32_t windowbase = windowbase_bound(env->sregs[WINDOW_BASE], env); - uint32_t ret_pc = (pc & 0xc0000000) | (env->regs[0] & 0x3fffffff); + int n = (a0 >> 30) & 0x3; xtensa_rotate_window(env, -n); - env->sregs[WINDOW_START] &= ~windowstart_bit(windowbase, env); - return ret_pc; -} - -void HELPER(rotw)(CPUXtensaState *env, uint32_t imm4) -{ - xtensa_rotate_window(env, imm4); } void xtensa_restore_owb(CPUXtensaState *env) |