diff options
Diffstat (limited to 'dyngen-exec.h')
| -rw-r--r-- | dyngen-exec.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/dyngen-exec.h b/dyngen-exec.h index fbde29ea01..3544372a65 100644 --- a/dyngen-exec.h +++ b/dyngen-exec.h @@ -19,7 +19,12 @@ #if !defined(__DYNGEN_EXEC_H__) #define __DYNGEN_EXEC_H__ -#if defined(__i386__) +#if defined(CONFIG_TCG_INTERPRETER) +/* The TCG interpreter does not need a special register AREG0, + * but it is possible to use one by defining AREG0. + * On i386, register edi seems to work. */ +/* Run without special register AREG0 or use a value defined elsewhere. */ +#elif defined(__i386__) #define AREG0 "ebp" #elif defined(__x86_64__) #define AREG0 "r14" @@ -55,6 +60,11 @@ #error unsupported CPU #endif +#if defined(AREG0) register CPUState *env asm(AREG0); +#else +/* TODO: Try env = cpu_single_env. */ +extern CPUState *env; +#endif #endif /* !defined(__DYNGEN_EXEC_H__) */ |