66 lines
1.1 KiB
C
66 lines
1.1 KiB
C
#ifndef _MPU_H
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#define _MPU_H 1
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//---
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// enum MPU
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// This type holds information about the calculator's MPU.
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//---
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enum MPU
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{
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MPU_Unknown = 0,
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// fx-9860G SH3.
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MPU_SH7337 = 1,
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// fx-9860G II SH3.
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MPU_SH7355 = 2,
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// fx-9860G II SH4.
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MPU_SH7305 = 3,
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// Just for reference.
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MPU_SH7724 = 4
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};
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//---
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// MPU type tests.
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// Prefer using an 'if(isSH3()) { ... } else { ... }' alternative for best
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// results.
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//---
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// Global MPU variable, accessible for direct tests.
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extern enum MPU MPU_CURRENT;
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// Quick SH3 test. It is safer to assume that an unknown model is SH4 because
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// SH3-based models are not produced anymore.
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#define isSH3() (MPU_CURRENT == MPU_SH7337 || MPU_CURRENT == MPU_SH7355)
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#define isSH4() !isSH3()
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//---
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// Public API.
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//---
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/*
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getMPU()
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Determines the MPU type and returns it. MPU_CURRENT is not updated.
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@return MPU type.
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*/
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enum MPU getMPU(void);
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//---
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// Internal API.
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// Referenced here for documentation purposes only. Do not call.
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//---
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/*
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mpu_init()
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Determines the MPU type and stores the result into MPU_CURRENT.
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*/
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void mpu_init(void) __attribute__((constructor));
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#endif // _MPU_H
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