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core: provide MPU type on unknown platforms 

This makes it possible to write application code without specifying the
target machine, which is especially useful for libraries. The first user
of this system is libprof.
This commit is contained in:
lephe 2019-07-16 15:14:00 -04:00
parent d9c32b2b05
commit 24fbeab55b
1 changed files with 7 additions and 6 deletions
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13
include/gint/hardware.h
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@ -11,8 +11,8 @@
// else do_sh4();
//---
#ifndef GINT_PLATFORM
#define GINT_PLATFORM
#ifndef GINT_HARDWARE
#define GINT_HARDWARE
#include <gint/defs/types.h>
@ -23,9 +23,10 @@
#define HW_KEYS 16
extern uint32_t gint[HW_KEYS];
/* MPU detection macros, with a faster version on fx-CG 50 */
/* MPU detection macros, with a faster version on fx-CG 50 and a generic
dual-platform version for libraries. */
#ifdef FX9860G
#if defined(FX9860G) || (!defined(FX9860G) && !defined(FXCG50))
#define isSH3() (gint[HWMPU] & 1)
#define isSH4() (!isSH3())
#endif
@ -183,7 +184,7 @@ void hw_detect(void);
/* The contrast address for this OS version is known. [fx9860g] */
#define HWDD_CONTRAST 0x04
/* Backlight management is supported. This is used both on fx9860g models with
backlit screen (although that very fact cannot be detected) and fxcg50. */
back-lit screen (although that very fact cannot be detected) and fxcg50. */
#define HWDD_LIGHT 0x08
#endif /* GINT_PLATFORM */
#endif /* GINT_HARDWARE */