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ISYS8010: Rename top intel directory to Intel-Systems (from isys8010)
This commit is contained in:
Bill Beech
committed by
Mark Pizzolato
Mark Pizzolato
parent
7e3a32fc06
commit
c73a8501ae
191
Intel-Systems/common/isbc064.c
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191
Intel-Systems/common/isbc064.c
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/* isbc064.c: Intel iSBC064 64K Byte Memory Card
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Copyright (c) 2011, William A. Beech
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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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WILLIAM A. BEECH 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 William A. Beech shall not be
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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 William A. Beech.
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MODIFICATIONS:
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?? ??? 11 - Original file.
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16 Dec 12 - Modified to use isbc_80_10.cfg file to set base and size.
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24 Apr 15 -- Modified to use simh_debug
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NOTES:
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These functions support a simulated isbc016, isbc032, isbc048 and isbc064
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memory card on an Intel multibus system.
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*/
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#include "system_defs.h"
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#define SET_XACK(VAL) (xack = VAL)
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/* prototypes */
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t_stat isbc064_reset (DEVICE *dptr);
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int32 isbc064_get_mbyte(int32 addr);
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int32 isbc064_get_mword(int32 addr);
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void isbc064_put_mbyte(int32 addr, int32 val);
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void isbc064_put_mword(int32 addr, int32 val);
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extern uint8 xack; /* XACK signal */
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/* isbc064 Standard I/O Data Structures */
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UNIT isbc064_unit = {
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UDATA (NULL, UNIT_FIX+UNIT_DISABLE+UNIT_BINK, 65536), KBD_POLL_WAIT
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};
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DEBTAB isbc064_debug[] = {
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{ "ALL", DEBUG_all },
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{ "FLOW", DEBUG_flow },
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{ "READ", DEBUG_read },
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{ "WRITE", DEBUG_write },
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{ "XACK", DEBUG_xack },
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{ "LEV1", DEBUG_level1 },
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{ "LEV2", DEBUG_level2 },
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{ NULL }
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};
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DEVICE isbc064_dev = {
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"SBC064", //name
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&isbc064_unit, //units
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NULL, //registers
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NULL, //modifiers
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1, //numunits
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16, //aradix
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8, //awidth
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1, //aincr
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16, //dradix
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8, //dwidth
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NULL, //examine
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NULL, //deposite
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&isbc064_reset, //reset
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NULL, //boot
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NULL, //attach
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NULL, //detach
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NULL, //ctxt
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DEV_DEBUG+DEV_DISABLE+DEV_DIS, //flags
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0, //dctrl
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isbc064_debug, //debflags
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NULL, //msize
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NULL //lname
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};
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/* iSBC064 globals */
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/* Reset routine */
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t_stat isbc064_reset (DEVICE *dptr)
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{
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sim_debug (DEBUG_flow, &isbc064_dev, "isbc064_reset: ");
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if ((isbc064_dev.flags & DEV_DIS) == 0) {
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isbc064_unit.capac = SBC064_SIZE;
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isbc064_unit.u3 = SBC064_BASE;
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printf("iSBC 064: Available[%04X-%04XH]\n",
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isbc064_unit.u3,
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isbc064_unit.u3 + isbc064_unit.capac - 1);
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}
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if (isbc064_unit.filebuf == NULL) {
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isbc064_unit.filebuf = malloc(isbc064_unit.capac);
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if (isbc064_unit.filebuf == NULL) {
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sim_debug (DEBUG_flow, &isbc064_dev, "isbc064_reset: Malloc error\n");
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return SCPE_MEM;
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}
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}
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sim_debug (DEBUG_flow, &isbc064_dev, "isbc064_reset: Done\n");
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return SCPE_OK;
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}
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/* get a byte from memory */
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int32 isbc064_get_mbyte(int32 addr)
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{
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int32 val, org, len;
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int i = 0;
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if ((isbc064_dev.flags & DEV_DIS) == 0) {
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org = isbc064_unit.u3;
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len = isbc064_unit.capac;
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sim_debug (DEBUG_read, &isbc064_dev, "isbc064_get_mbyte: addr=%04X", addr);
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sim_debug (DEBUG_read, &isbc064_dev, "isbc064_get_mbyte: org=%04X, len=%04X\n", org, len);
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if ((addr >= org) && (addr < (org + len))) {
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SET_XACK(1); /* good memory address */
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sim_debug (DEBUG_xack, &isbc064_dev, "isbc064_get_mbyte: Set XACK for %04X\n", addr);
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val = *(uint8 *)(isbc064_unit.filebuf + (addr - org));
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sim_debug (DEBUG_read, &isbc064_dev, " val=%04X\n", val);
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return (val & 0xFF);
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} else {
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sim_debug (DEBUG_read, &isbc064_dev, " Out of range\n");
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return 0xFF; /* multibus has active high pullups */
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}
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}
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sim_debug (DEBUG_read, &isbc064_dev, " Disabled\n");
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return 0xFF; /* multibus has active high pullups */
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}
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/* get a word from memory */
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int32 isbc064_get_mword(int32 addr)
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{
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int32 val;
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val = isbc064_get_mbyte(addr);
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val |= (isbc064_get_mbyte(addr+1) << 8);
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return val;
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}
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/* put a byte into memory */
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void isbc064_put_mbyte(int32 addr, int32 val)
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{
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int32 org, len;
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int i = 0;
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if ((isbc064_dev.flags & DEV_DIS) == 0) {
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org = isbc064_unit.u3;
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len = isbc064_unit.capac;
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sim_debug (DEBUG_write, &isbc064_dev, "isbc064_put_mbyte: addr=%04X, val=%02X\n", addr, val);
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sim_debug (DEBUG_write, &isbc064_dev, "isbc064_put_mbyte: org=%04X, len=%04X\n", org, len);
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if ((addr >= org) && (addr < (org + len))) {
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SET_XACK(1); /* good memory address */
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sim_debug (DEBUG_write, &isbc064_dev, "isbc064_put_mbyte: Set XACK for %04X\n", addr);
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*(uint8 *)(isbc064_unit.filebuf + (addr - org)) = val & 0xFF;
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sim_debug (DEBUG_write, &isbc064_dev, "isbc064_put_mbyte: Return\n");
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return;
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} else {
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sim_debug (DEBUG_write, &isbc064_dev, " Out of range\n");
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return;
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}
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}
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sim_debug (DEBUG_write, &isbc064_dev, "isbc064_put_mbyte: Disabled\n");
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}
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/* put a word into memory */
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void isbc064_put_mword(int32 addr, int32 val)
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{
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isbc064_put_mbyte(addr, val);
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isbc064_put_mbyte(addr+1, val << 8);
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}
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/* end of isbc064.c */
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