mirror of https://github.com/cc65/cc65.git
141 lines
5.0 KiB
C
141 lines
5.0 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* cpu.c */
|
|
/* */
|
|
/* CPU specifications */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 2003-2011, Ullrich von Bassewitz */
|
|
/* Roemerstrasse 52 */
|
|
/* D-70794 Filderstadt */
|
|
/* EMail: uz@cc65.org */
|
|
/* */
|
|
/* */
|
|
/* This software is provided 'as-is', without any expressed or implied */
|
|
/* warranty. In no event will the authors be held liable for any damages */
|
|
/* arising from the use of this software. */
|
|
/* */
|
|
/* Permission is granted to anyone to use this software for any purpose, */
|
|
/* including commercial applications, and to alter it and redistribute it */
|
|
/* freely, subject to the following restrictions: */
|
|
/* */
|
|
/* 1. The origin of this software must not be misrepresented; you must not */
|
|
/* claim that you wrote the original software. If you use this software */
|
|
/* in a product, an acknowledgment in the product documentation would be */
|
|
/* appreciated but is not required. */
|
|
/* 2. Altered source versions must be plainly marked as such, and must not */
|
|
/* be misrepresented as being the original software. */
|
|
/* 3. This notice may not be removed or altered from any source */
|
|
/* distribution. */
|
|
/* */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
/* common */
|
|
#include "addrsize.h"
|
|
#include "check.h"
|
|
#include "cpu.h"
|
|
#include "strutil.h"
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Data */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
/* CPU used */
|
|
cpu_t CPU = CPU_UNKNOWN;
|
|
|
|
/* Table with target names */
|
|
const char* CPUNames[CPU_COUNT] = {
|
|
"none",
|
|
"6502",
|
|
"6502X",
|
|
"6502DTV",
|
|
"65SC02",
|
|
"65C02",
|
|
"65816",
|
|
"sweet16",
|
|
"huc6280",
|
|
"m740",
|
|
"4510",
|
|
};
|
|
|
|
/* Tables with CPU instruction sets */
|
|
const unsigned CPUIsets[CPU_COUNT] = {
|
|
CPU_ISET_NONE,
|
|
CPU_ISET_6502,
|
|
CPU_ISET_6502 | CPU_ISET_6502X,
|
|
CPU_ISET_6502 | CPU_ISET_6502DTV,
|
|
CPU_ISET_6502 | CPU_ISET_65SC02,
|
|
CPU_ISET_6502 | CPU_ISET_65SC02 | CPU_ISET_65C02,
|
|
CPU_ISET_6502 | CPU_ISET_65SC02 | CPU_ISET_65C02 | CPU_ISET_65816,
|
|
CPU_ISET_SWEET16,
|
|
CPU_ISET_6502 | CPU_ISET_65SC02 | CPU_ISET_65C02 | CPU_ISET_HUC6280,
|
|
CPU_ISET_6502 | CPU_ISET_M740,
|
|
CPU_ISET_6502 | CPU_ISET_65SC02 | CPU_ISET_65C02 | CPU_ISET_4510,
|
|
};
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Code */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
int ValidAddrSizeForCPU (unsigned char AddrSize)
|
|
/* Check if the given address size is valid for the current CPU */
|
|
{
|
|
switch (AddrSize) {
|
|
case ADDR_SIZE_DEFAULT:
|
|
/* Always supported */
|
|
return 1;
|
|
|
|
case ADDR_SIZE_ZP:
|
|
/* Not supported by Sweet16 */
|
|
return (CPU != CPU_SWEET16);
|
|
|
|
case ADDR_SIZE_ABS:
|
|
/* Always supported */
|
|
return 1;
|
|
|
|
case ADDR_SIZE_FAR:
|
|
/* Supported by "none" and 65816 */
|
|
return (CPU == CPU_NONE || CPU == CPU_65816);
|
|
|
|
case ADDR_SIZE_LONG:
|
|
/* "none" supports all sizes */
|
|
return (CPU == CPU_NONE);
|
|
|
|
default:
|
|
FAIL ("Invalid address size");
|
|
/* NOTREACHED */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
cpu_t FindCPU (const char* Name)
|
|
/* Find a CPU by name and return the target id. CPU_UNKNOWN is returned if
|
|
** the given name is no valid target.
|
|
*/
|
|
{
|
|
unsigned I;
|
|
|
|
/* Check all CPU names */
|
|
for (I = 0; I < CPU_COUNT; ++I) {
|
|
if (StrCaseCmp (CPUNames [I], Name) == 0) {
|
|
return (cpu_t)I;
|
|
}
|
|
}
|
|
|
|
/* Not found */
|
|
return CPU_UNKNOWN;
|
|
}
|