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Add abs, bit, s8, s16, s32 functions to debugger

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This commit is contained in:
AJR 2020-09-25 23:01:33 -04:00
parent 78612bd01f
commit 98f6fde104
2 changed files with 72 additions and 9 deletions
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76
src/emu/debug/debugcmd.cpp
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@ -122,6 +122,11 @@ debugger_commands::debugger_commands(running_machine& machine, debugger_cpu& cpu
symtable.add("min", 2, 2, std::bind(&debugger_commands::execute_min, this, _1, _2)); symtable.add("min", 2, 2, std::bind(&debugger_commands::execute_min, this, _1, _2));
symtable.add("max", 2, 2, std::bind(&debugger_commands::execute_max, this, _1, _2)); symtable.add("max", 2, 2, std::bind(&debugger_commands::execute_max, this, _1, _2));
symtable.add("if", 3, 3, std::bind(&debugger_commands::execute_if, this, _1, _2)); symtable.add("if", 3, 3, std::bind(&debugger_commands::execute_if, this, _1, _2));
symtable.add("abs", 1, 1, std::bind(&debugger_commands::execute_abs, this, _1, _2));
symtable.add("bit", 2, 3, std::bind(&debugger_commands::execute_bit, this, _1, _2));
symtable.add("s8", 1, 1, std::bind(&debugger_commands::execute_s8, this, _1, _2));
symtable.add("s16", 1, 1, std::bind(&debugger_commands::execute_s16, this, _1, _2));
symtable.add("s32", 1, 1, std::bind(&debugger_commands::execute_s32, this, _1, _2));
symtable.add("cpunum", std::bind(&debugger_commands::get_cpunum, this)); symtable.add("cpunum", std::bind(&debugger_commands::get_cpunum, this));
/* add all single-entry save state globals */ /* add all single-entry save state globals */
@ -322,9 +327,9 @@ debugger_commands::debugger_commands(running_machine& machine, debugger_cpu& cpu
m_cheat.cpu[0] = m_cheat.cpu[1] = 0; m_cheat.cpu[0] = m_cheat.cpu[1] = 0;
} }
/*------------------------------------------------- //-------------------------------------------------
execute_min - return the minimum of two values // execute_min - return the minimum of two values
-------------------------------------------------*/ //-------------------------------------------------
u64 debugger_commands::execute_min(int params, const u64 *param) u64 debugger_commands::execute_min(int params, const u64 *param)
{ {
@ -332,9 +337,9 @@ u64 debugger_commands::execute_min(int params, const u64 *param)
} }
/*------------------------------------------------- //-------------------------------------------------
execute_max - return the maximum of two values // execute_max - return the maximum of two values
-------------------------------------------------*/ //-------------------------------------------------
u64 debugger_commands::execute_max(int params, const u64 *param) u64 debugger_commands::execute_max(int params, const u64 *param)
{ {
@ -342,9 +347,9 @@ u64 debugger_commands::execute_max(int params, const u64 *param)
} }
/*------------------------------------------------- //-------------------------------------------------
execute_if - if (a) return b; else return c; // execute_if - if (a) return b; else return c;
-------------------------------------------------*/ //-------------------------------------------------
u64 debugger_commands::execute_if(int params, const u64 *param) u64 debugger_commands::execute_if(int params, const u64 *param)
{ {
@ -352,6 +357,59 @@ u64 debugger_commands::execute_if(int params, const u64 *param)
} }
//-------------------------------------------------
// execute_abs - return the absolute value
//-------------------------------------------------
u64 debugger_commands::execute_abs(int params, const u64 *param)
{
return std::abs(s64(param[0]));
}
//-------------------------------------------------
// execute_bit - extract bit field from value
//-------------------------------------------------
u64 debugger_commands::execute_bit(int params, const u64 *param)
{
if (params == 2)
return BIT(param[0], param[1]);
else
return BIT(param[0], param[1], param[2]);
}
//-------------------------------------------------
// execute_s8 - sign-extend from 8 bits
//-------------------------------------------------
u64 debugger_commands::execute_s8(int params, const u64 *param)
{
return s8(param[0]);
}
//-------------------------------------------------
// execute_s16 - sign-extend from 16 bits
//-------------------------------------------------
u64 debugger_commands::execute_s16(int params, const u64 *param)
{
return s16(param[0]);
}
//-------------------------------------------------
// execute_s32 - sign-extend from 32 bits
//-------------------------------------------------
u64 debugger_commands::execute_s32(int params, const u64 *param)
{
return s32(param[0]);
}
//------------------------------------------------- //-------------------------------------------------
// get_cpunum - getter callback for the // get_cpunum - getter callback for the
// 'cpunum' symbol // 'cpunum' symbol

5
src/emu/debug/debugcmd.h
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@ -87,6 +87,11 @@ private:
u64 execute_min(int params, const u64 *param); u64 execute_min(int params, const u64 *param);
u64 execute_max(int params, const u64 *param); u64 execute_max(int params, const u64 *param);
u64 execute_if(int params, const u64 *param); u64 execute_if(int params, const u64 *param);
u64 execute_abs(int params, const u64 *param);
u64 execute_bit(int params, const u64 *param);
u64 execute_s8(int params, const u64 *param);
u64 execute_s16(int params, const u64 *param);
u64 execute_s32(int params, const u64 *param);
u64 get_cpunum(); u64 get_cpunum();
u64 global_get(global_entry *global); u64 global_get(global_entry *global);