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71 lines
3.6 KiB
C
71 lines
3.6 KiB
C
/* s100_z80.h
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Copyright (c) 2025 Patrick A. Linstruth
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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PETER SCHORN BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN 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 SOFTWARE.
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Except as contained in this notice, the name of Patrick Linstruth shall not
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be used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Patrick Linstruth.
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History:
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11/07/25 Initial version
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*/
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#ifndef S100_Z80_H_
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#define S100_Z80_H_
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#include "s100_cpu.h"
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#define LDA_INSTRUCTION 0x3e /* op-code for LD A,<8-bit value> instruction */
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#define UNIT_NO_OFFSET_1 0x37 /* LD A,<unitno> */
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#define UNIT_NO_OFFSET_2 0xb4 /* LD a,80h | <unitno> */
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#define LDB_INSTRUCTION 0x06 /* op-code for LD B,<8-bit value> instruction */
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#define START_SECTOR_OFFSET 0x57 /* LD B,<start_sector_offset> */
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#define CPU_INDEX_8080 4 /* index of default PC register */
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/* simulator stop codes */
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#define STOP_IBKPT 1 /* breakpoint (program counter) */
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#define STOP_MEM 2 /* breakpoint (memory access) */
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#define STOP_INSTR 3 /* breakpoint (instruction access) */
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#define STOP_OPCODE 4 /* invalid operation encountered (8080, Z80, 8086) */
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#define STOP_HALT 5 /* HALT */
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#define UNIT_Z80_V_OPSTOP (UNIT_V_UF+0) /* stop on invalid operation */
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#define UNIT_Z80_OPSTOP (1 << UNIT_Z80_V_OPSTOP)
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#define UNIT_Z80_V_STOPONHALT (UNIT_V_UF+1) /* stop simulation on HALT */
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#define UNIT_Z80_STOPONHALT (1 << UNIT_Z80_V_STOPONHALT)
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#define PLURAL(x) (x), (x) == 1 ? "" : "s"
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extern ChipType z80_chiptype;
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extern REG *z80_pc_reg;
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extern t_stat z80_instr(void);
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extern t_value z80_pc_value(void);
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extern t_stat z80_parse_sym(const char *cptr, t_addr addr, UNIT *uptr, t_value *val, int32 sw);
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extern t_bool z80_is_pc_a_subroutine_call (t_addr **ret_addrs);
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extern int32 z80_dasm(char *S, const uint32 *val, const int32 addr);
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extern t_stat z80_cmd_reg(int32 flag, const char *cptr);
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extern t_bool z80_is_pc_a_subroutine_call(t_addr **ret_addrs);
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extern t_stat z80_show_help(FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, const char *cptr);
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#endif
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