mpw/toolbox/stackframe.h
Kelvin Sherlock 84ff99c177 Squashed commit of the following:
commit f4807cd071ba5c4ce9ba4aa8c906ba335da07a2d
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Feb 13 16:09:55 2015 -0500

    merge in missing tool calls

commit 6830ab51ce7c48e3d0d1352f04df8df914146b3e
Merge: 1675a47 24c17a9
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Feb 13 16:06:05 2015 -0500

    Merge branch 'feature_trap_address_2015' into merge_dispatcher

    Conflicts:
    	bin/loader.cpp
    	toolbox/rm.cpp
    	toolbox/toolbox.cpp

commit 24c17a9a88
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Feb 13 13:22:07 2015 -0500

    SetOSTrapAddress stub

commit b255937e6c
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Sat Jan 24 14:40:45 2015 -0500

    Use the $Commands environment variable as a list of directories where commands may be located.

    Conflicts:
    	bin/loader.cpp

commit a3925747ce
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Jan 23 10:26:52 2015 -0500

    HWPriv OS Trap

commit 16d0038fd1
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Jan 23 10:26:40 2015 -0500

    HWPriv OS Trap

commit bf92f80632
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Wed Jan 21 17:34:30 2015 -0500

    RM::GetNamedResource

commit 540490d0c5
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Wed Jan 21 14:31:03 2015 -0500

    GetNamedResource trap

commit 09aa8d0f26
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Tue Jan 20 19:32:04 2015 -0500

    Set ApplZone global (ARMCFront)

commit 45fa54abca
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Tue Jan 20 13:58:24 2015 -0500

    update test makefile

commit b1e6635630
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Tue Jan 20 13:35:07 2015 -0500

    SysEnvirons ($a090) OS Trap

commit a5126544b8
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Mon Jan 19 15:02:29 2015 -0500

    undo HGetVolume cwd, for now

commit 912c874825
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Mon Jan 19 10:55:58 2015 -0500

    Fix SetPtrSize

commit c0fe74c1b8
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Sun Jan 18 17:31:09 2015 -0500

    support the auto-pop bit for tool calls (MPW Pascal IIgs 1.0b1)

commit 2e9ab5200c
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Sun Jan 18 15:20:38 2015 -0500

    update dispatch code...

commit c7c548e5ac
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Sun Jan 18 14:48:22 2015 -0500

    add back new tool calls.

commit cbb554174e
Merge: 44d19f7 5e616d3
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Sun Jan 18 14:43:58 2015 -0500

    Merge branch 'feature_trap_address' into feature_trap_address_2015

    Conflicts:
    	toolbox/CMakeLists.txt
    	toolbox/os.cpp
    	toolbox/toolbox.cpp

commit 5e616d353b
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Sun Dec 14 18:01:38 2014 -0500

    new dispatcher.

commit ea5f213921
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Mon Dec 8 11:42:23 2014 -0500

    get ready for trap overrides.

commit 17c5b40ac8
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Dec 5 14:39:17 2014 -0500

    remove dead code

commit fc7df738cc
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date:   Fri Dec 5 14:32:18 2014 -0500

    display trap name for GetToolTrap, etc.
2015-02-13 16:11:55 -05:00

120 lines
2.7 KiB
C++

#ifndef __StackFrame_h__
#define __StackFrame_h__
#include <cstdint>
#include <utility>
//
template<int Bytes>
void Push__(uint32_t sp)
{
static_assert(Bytes == 0, "Invalid Stack Size");
}
template<int Bytes, typename... Args>
void Push__(uint32_t sp, uint16_t value, Args&&... args);
template<int Bytes, typename... Args>
void Push__(uint32_t sp, uint32_t value, Args&&... args);
template<int Bytes, typename... Args>
void Push__(uint32_t sp, uint16_t value, Args&&... args)
{
memoryWriteWord(value, sp);
Push__<Bytes-2>(sp + 2, std::forward<Args>(args)...);
}
template<int Bytes, typename... Args>
void Push__(uint32_t sp, uint32_t value, Args&&... args)
{
memoryWriteLong(value, sp);
Push__<Bytes-4>(sp + 4, std::forward<Args>(args)...);
}
template<int Bytes, typename... Args>
void Push(Args&&... args)
{
uint32_t sp = cpuGetAReg(7) - Bytes;
cpuSetAReg(7, sp);
Push__<Bytes>(sp, std::forward<Args>(args)...);
}
template<unsigned N>
void ToolReturn(uint32_t sp, uint32_t value)
{
if (sp == -1) sp = cpuGetAReg(7);
static_assert(N == 2 || N == 4, "Invalid Return Size");
if (N == 4)
{
memoryWriteLong(value, sp);
}
if (N == 2)
{
memoryWriteWord(value, sp);
}
}
// pre-define these templates to prevent instantiation errors.
template<int Bytes, int Offset, typename... Args>
uint32_t StackFrame__(uint32_t sp, uint32_t &x, Args&&... args);
template<int Bytes, int Offset, typename... Args>
uint32_t StackFrame__(uint32_t sp, uint16_t &x, Args&&... args);
template<int Bytes, int Offset, typename... Args>
uint32_t StackFrame__(uint32_t sp, uint8_t &x, Args&&... args);
template<int Bytes, int Offset>
uint32_t StackFrame__(uint32_t sp);
template<int Bytes, int Offset>
uint32_t StackFrame__(uint32_t sp)
{
static_assert(Offset == 0, "Invalid Stack Size");
cpuSetAReg(7, sp + Bytes);
return sp + Bytes;
}
template<int Bytes, int Offset, typename... Args>
uint32_t StackFrame__(uint32_t sp, uint32_t &x, Args&&... args)
{
x = memoryReadLong(sp + Offset - 4);
return StackFrame__<Bytes, Offset - 4>(sp, std::forward<Args>(args)...);
}
template<int Bytes, int Offset, typename... Args>
uint32_t StackFrame__(uint32_t sp, uint16_t &x, Args&&... args)
{
x = memoryReadWord(sp + Offset - 2);
return StackFrame__<Bytes, Offset - 2>(sp, std::forward<Args>(args)...);
}
template<int Bytes, int Offset, typename... Args>
uint32_t StackFrame__(uint32_t sp, uint8_t &x, Args&&... args)
{
// byte pushes as 2 bytes with 1 garbage byte
x = memoryReadByte(sp + Offset - 2);
return StackFrame__<Bytes, Offset - 2>(sp, std::forward<Args>(args)...);
}
template<int Bytes, typename... Args>
uint32_t StackFrame(Args&&... args)
{
uint32_t sp = cpuGetAReg(7);
return StackFrame__<Bytes, Bytes>(sp, std::forward<Args>(args)...);
}
#endif