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[/] [aemb/] [trunk/] [sw/] [cc/] [aemb/] [stack.hh] - Diff between revs 145 and 151

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Rev 145	Rev 151
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`/* $Id: stack.hh,v 1.7 2008-04-27 16:33:42 sybreon Exp $`	`/* $Id: stack.hh,v 1.8 2008-04-28 20:29:15 sybreon Exp $`
`**`	`**`
`** AEMB2 HI-PERFORMANCE CPU`	`** AEMB2 HI-PERFORMANCE CPU`
`** Copyright (C) 2004-2007 Shawn Tan Ser Ngiap`	`** Copyright (C) 2004-2007 Shawn Tan Ser Ngiap`
`**`	`**`
`** This file is part of AEMB.`	`** This file is part of AEMB.`
Line 22...	Line 22...
`/**`	`/**`
`Basic stack related functions`	`Basic stack related functions`
`@file stack.hh`	`@file stack.hh`
`*/`	`*/`

`#ifndef AEMB_STACK_HH`	`#ifndef _AEMB_STACK_HH`
`#define AEMB_STACK_HH`	`#define _AEMB_STACK_HH`

`#ifdef __cplusplus`	`#ifdef __cplusplus`
`namespace aemb {`	`extern "C" {`
`#endif`	`#endif`

`/**`	`/**`
`Reads the size of the memory space allocated for the stack in bytes.`	`Reads the size of the memory space allocated for the stack in bytes.`
`@return size of stack`	`@return size of stack`
`*/`	`*/`

`inline int getStackSize()`	`inline int aembGetStackSize()`
`{`	`{`
`int tmp;`	`int tmp;`
`asm ("la %0, r0, _STACK_SIZE":"=r"(tmp));`	`asm ("la %0, r0, _STACK_SIZE":"=r"(tmp));`
`return tmp;`	`return tmp;`
`}`	`}`
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`Reads the end of the memory space allocated for the stack. This is`	`Reads the end of the memory space allocated for the stack. This is`
`where the stack ends.`	`where the stack ends.`
`@return end of stack`	`@return end of stack`
`*/`	`*/`

`inline int getStackEnd()`	`inline int aembGetStackEnd()`
`{`	`{`
`int tmp;`	`int tmp;`
`asm ("la %0, r0, _stack_end":"=r"(tmp));`	`asm ("la %0, r0, _stack_end":"=r"(tmp));`
`return tmp;`	`return tmp;`
`}`	`}`
Line 60...	Line 60...
`Reads the top of the memory space allocated for the stack. This is`	`Reads the top of the memory space allocated for the stack. This is`
`where the stack starts.`	`where the stack starts.`
`@return top of stack`	`@return top of stack`
`*/`	`*/`

`inline int getStackTop()`	`inline int aembGetStackTop()`
`{`	`{`
`int tmp;`	`int tmp;`
`asm ("la %0, r0, _stack":"=r"(tmp));`	`asm ("la %0, r0, _stack":"=r"(tmp));`
`return tmp;`	`return tmp;`
`}`	`}`
Line 72...	Line 72...
`/**`	`/**`
`Reads register R1 which is the designated stack pointer.`	`Reads register R1 which is the designated stack pointer.`
`@return stack pointer`	`@return stack pointer`
`*/`	`*/`

`inline int getStack()`	`inline int aembGetStack()`
`{`	`{`
`int tmp;`	`int tmp;`
`asm ("addk %0, r0, r1":"=r"(tmp));`	`asm ("addk %0, r0, r1":"=r"(tmp));`
`return tmp;`	`return tmp;`
`}`	`}`
Line 85...	Line 85...
`Sets register R1 to the new stack pointer.`	`Sets register R1 to the new stack pointer.`
`@param stk new stack pointer`	`@param stk new stack pointer`
`@return new stack pointer`	`@return new stack pointer`
`*/`	`*/`

`inline int setStack(int stk)`	`inline int aembSetStack(int stk)`
`{`	`{`
`asm ("addk r1, r0, %0"::"r"(stk));`	`asm ("addk r1, r0, %0"::"r"(stk));`
`return stk;`	`return stk;`
`}`	`}`

Line 98...	Line 98...
`@param newp new stack pointer`	`@param newp new stack pointer`
`@param oldp old stack pointer`	`@param oldp old stack pointer`
`@param endp end of the stack`	`@param endp end of the stack`
`*/`	`*/`

`inline void dupStack(unsigned int newp, unsigned int oldp, unsigned int *endp)`	`inline void aembDupStack(unsigned int newp, unsigned int oldp, unsigned int *endp)`
`{`	`{`
`while (oldp < endp)`	`while (oldp < endp)`
`{`	`{`
`// copy the stack content`	`// copy the stack content`
`newp = oldp;`	`newp = oldp;`

`// this increments 1 word (not 1 byte)`	`// this increments 1 word (not 1 byte)`
`newp++;`	`newp++;`
`oldp++;`	`oldp++;`
`}`	`}`
`}`	`}`
Line 119...	Line 118...

`#endif`	`#endif`

`/*`	`/*`
$Log: not supported by cvs2svn $	$Log: not supported by cvs2svn $
	`Revision 1.7 2008/04/27 16:33:42 sybreon`
	`License change to GPL3.`

`Revision 1.6 2008/04/27 16:04:42 sybreon`	`Revision 1.6 2008/04/27 16:04:42 sybreon`
`Minor cosmetic changes.`	`Minor cosmetic changes.`

`Revision 1.5 2008/04/26 19:31:35 sybreon`	`Revision 1.5 2008/04/26 19:31:35 sybreon`
`Made headers C compatible.`	`Made headers C compatible.`

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[/] [aemb/] [trunk/] [sw/] [cc/] [aemb/] [stack.hh] - Diff between revs 145 and 151