c02491f733
This change signficantly improves header hygiene in the 3B2 project by moving global symbols out of 3b2_defs.h and into the appropriate individual module header files. Each compilation unit now includes: - its appropriate matching .h file - any other .h files necessary for linting and compilation Each header file in turn includes 3b2_defs.h, which contains truly global symbols, and which pulls in sim_defs.h and exports global devices.
62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/* 3b2_mem.h: AT&T 3B2 3B2 memory access routines
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Copyright (c) 2021, Seth J. Morabito
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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Except as contained in this notice, the name of the author shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from the author.
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*/
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#ifndef _3B2_MEM_H_
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#define _3B2_MEM_H_
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#include "3b2_defs.h"
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uint32 pread_w(uint32 pa);
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void pwrite_w(uint32 pa, uint32 val);
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uint8 pread_b(uint32 pa);
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void pwrite_b(uint32 pa, uint8 val);
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uint16 pread_h(uint32 pa);
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void pwrite_h(uint32 pa, uint16 val);
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uint8 read_b(uint32 va, uint8 r_acc);
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uint16 read_h(uint32 va, uint8 r_acc);
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uint32 read_w(uint32 va, uint8 r_acc);
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void write_b(uint32 va, uint8 val);
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void write_h(uint32 va, uint16 val);
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void write_w(uint32 va, uint32 val);
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t_stat read_operand(uint32 va, uint8 *val);
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t_stat examine(uint32 va, uint8 *val);
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t_stat deposit(uint32 va, uint8 val);
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t_bool addr_is_rom(uint32 pa);
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t_bool addr_is_mem(uint32 pa);
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t_bool addr_is_io(uint32 pa);
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t_stat mmu_decode_va(uint32 va, uint8 r_acc, t_bool fc, uint32 *pa);
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void mmu_enable();
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void mmu_disable();
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#endif /* _3B2_MEM_H_ */
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