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68k: add musashi as a 68k core option
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| /* Copyright 2007 Guillaume Duhamel | ||
| This file is part of Yabause. | ||
| Yabause is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2 of the License, or | ||
| (at your option) any later version. | ||
| Yabause is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with Yabause; if not, write to the Free Software | ||
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
|
|
||
| /*! \file m68kmusashi.c | ||
| \brief Musashi 68000 interface. | ||
| */ | ||
|
|
||
| #include "m68kmusashi.h" | ||
| #include "musashi/m68k.h" | ||
| #include "m68kcore.h" | ||
| #include "musashi/m68kcpu.h" | ||
|
|
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| struct ReadWriteFuncs | ||
| { | ||
| M68K_READ *r_8; | ||
| M68K_READ *r_16; | ||
| M68K_WRITE *w_8; | ||
| M68K_WRITE *w_16; | ||
| }rw_funcs; | ||
|
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||
| static int M68KMusashiInit(void) { | ||
|
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| m68k_init(); | ||
| m68k_set_cpu_type(M68K_CPU_TYPE_68000); | ||
|
|
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| return 0; | ||
| } | ||
|
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| static void M68KMusashiDeInit(void) { | ||
| } | ||
|
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| static void M68KMusashiReset(void) { | ||
| m68k_pulse_reset(); | ||
| } | ||
|
|
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| static s32 FASTCALL M68KMusashiExec(s32 cycle) { | ||
| return m68k_execute(cycle); | ||
| } | ||
|
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| static void M68KMusashiSync(void) { | ||
| } | ||
|
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| static u32 M68KMusashiGetDReg(u32 num) { | ||
| return m68k_get_reg(NULL, M68K_REG_D0 + num); | ||
| } | ||
|
|
||
| static u32 M68KMusashiGetAReg(u32 num) { | ||
| return m68k_get_reg(NULL, M68K_REG_A0 + num); | ||
| } | ||
|
|
||
| static u32 M68KMusashiGetPC(void) { | ||
| return m68k_get_reg(NULL, M68K_REG_PC); | ||
| } | ||
|
|
||
| static u32 M68KMusashiGetSR(void) { | ||
| return m68k_get_reg(NULL, M68K_REG_SR); | ||
| } | ||
|
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| static u32 M68KMusashiGetUSP(void) { | ||
| return m68k_get_reg(NULL, M68K_REG_USP); | ||
| } | ||
|
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| static u32 M68KMusashiGetMSP(void) { | ||
| return m68k_get_reg(NULL, M68K_REG_MSP); | ||
| } | ||
|
|
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| static void M68KMusashiSetDReg(u32 num, u32 val) { | ||
| m68k_set_reg(M68K_REG_D0 + num, val); | ||
| } | ||
|
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| static void M68KMusashiSetAReg(u32 num, u32 val) { | ||
| m68k_set_reg(M68K_REG_A0 + num, val); | ||
| } | ||
|
|
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| static void M68KMusashiSetPC(u32 val) { | ||
| m68k_set_reg(M68K_REG_PC, val); | ||
| } | ||
|
|
||
| static void M68KMusashiSetSR(u32 val) { | ||
| m68k_set_reg(M68K_REG_SR, val); | ||
| } | ||
|
|
||
| static void M68KMusashiSetUSP(u32 val) { | ||
| m68k_set_reg(M68K_REG_USP, val); | ||
| } | ||
|
|
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| static void M68KMusashiSetMSP(u32 val) { | ||
| m68k_set_reg(M68K_REG_MSP, val); | ||
| } | ||
|
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| static void M68KMusashiSetFetch(u32 low_adr, u32 high_adr, pointer fetch_adr) { | ||
| } | ||
|
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| static void FASTCALL M68KMusashiSetIRQ(s32 level) { | ||
| if (level > 0) | ||
| m68k_set_irq(level); | ||
| } | ||
|
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||
| static void FASTCALL M68KMusashiWriteNotify(u32 address, u32 size) { | ||
| } | ||
|
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| unsigned int m68k_read_memory_8(unsigned int address) | ||
| { | ||
| return rw_funcs.r_8(address); | ||
| } | ||
|
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||
| unsigned int m68k_read_memory_16(unsigned int address) | ||
| { | ||
| return rw_funcs.r_16(address); | ||
| } | ||
|
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| unsigned int m68k_read_memory_32(unsigned int address) | ||
| { | ||
| u16 val1 = rw_funcs.r_16(address); | ||
|
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| return (val1 << 16 | rw_funcs.r_16(address + 2)); | ||
| } | ||
|
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| void m68k_write_memory_8(unsigned int address, unsigned int value) | ||
| { | ||
| rw_funcs.w_8(address, value); | ||
| } | ||
|
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| void m68k_write_memory_16(unsigned int address, unsigned int value) | ||
| { | ||
| rw_funcs.w_16(address, value); | ||
| } | ||
|
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| void m68k_write_memory_32(unsigned int address, unsigned int value) | ||
| { | ||
| rw_funcs.w_16(address, value >> 16 ); | ||
| rw_funcs.w_16(address + 2, value & 0xffff); | ||
| } | ||
|
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| static void M68KMusashiSetReadB(M68K_READ *Func) { | ||
| rw_funcs.r_8 = Func; | ||
| } | ||
|
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| static void M68KMusashiSetReadW(M68K_READ *Func) { | ||
| rw_funcs.r_16 = Func; | ||
| } | ||
|
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| static void M68KMusashiSetWriteB(M68K_WRITE *Func) { | ||
| rw_funcs.w_8 = Func; | ||
| } | ||
|
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| static void M68KMusashiSetWriteW(M68K_WRITE *Func) { | ||
| rw_funcs.w_16 = Func; | ||
| } | ||
|
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| static void M68KMusashiSaveState(FILE *fp) { | ||
| } | ||
|
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| static void M68KMusashiLoadState(FILE *fp) { | ||
| } | ||
|
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| M68K_struct M68KMusashi = { | ||
| 3, | ||
| "Musashi Interface", | ||
| M68KMusashiInit, | ||
| M68KMusashiDeInit, | ||
| M68KMusashiReset, | ||
| M68KMusashiExec, | ||
| M68KMusashiSync, | ||
| M68KMusashiGetDReg, | ||
| M68KMusashiGetAReg, | ||
| M68KMusashiGetPC, | ||
| M68KMusashiGetSR, | ||
| M68KMusashiGetUSP, | ||
| M68KMusashiGetMSP, | ||
| M68KMusashiSetDReg, | ||
| M68KMusashiSetAReg, | ||
| M68KMusashiSetPC, | ||
| M68KMusashiSetSR, | ||
| M68KMusashiSetUSP, | ||
| M68KMusashiSetMSP, | ||
| M68KMusashiSetFetch, | ||
| M68KMusashiSetIRQ, | ||
| M68KMusashiWriteNotify, | ||
| M68KMusashiSetReadB, | ||
| M68KMusashiSetReadW, | ||
| M68KMusashiSetWriteB, | ||
| M68KMusashiSetWriteW, | ||
| M68KMusashiSaveState, | ||
| M68KMusashiLoadState | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /* Copyright 2007 Guillaume Duhamel | ||
| This file is part of Yabause. | ||
| Yabause is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2 of the License, or | ||
| (at your option) any later version. | ||
| Yabause is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with Yabause; if not, write to the Free Software | ||
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
|
|
||
| #ifndef M68KMUSASHI_H | ||
| #define M68KMUSASHI_H | ||
|
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| #include "m68kcore.h" | ||
|
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| extern M68K_struct M68KMusashi; | ||
|
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| #endif |
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