7bed091134
Fixed auto configure bugs which didn't allow Fixed CSR Addresses or Fixed Vectors to be set using the auto configure information. Fixed display of address and vectors to indicate that the assigned address and/or vector is in the floating set. Added extended definitions to the auto configure table to reflect all known potential static and floating and static addresses as of VMS V5.5-2 Changed the name of the VAX 11/780 console floppy device name to RXC from RX (which collides with a Unibus name for the RX11).
201 lines
6.5 KiB
C
201 lines
6.5 KiB
C
/* pdp11_lp.c: PDP-11 line printer simulator
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Copyright (c) 1993-2008, Robert M Supnik
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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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ROBERT M SUPNIK 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 Robert M Supnik 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 Robert M Supnik.
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lpt LP11 line printer
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19-Jan-07 RMS Added UNIT_TEXT flag
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07-Jul-05 RMS Removed extraneous externs
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19-May-03 RMS Revised for new conditional compilation scheme
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25-Apr-03 RMS Revised for extended file support
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29-Sep-02 RMS Added vector change/display support
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New data structures
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30-May-02 RMS Widened POS to 32b
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06-Jan-02 RMS Added enable/disable support
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09-Nov-01 RMS Added VAX support
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07-Sep-01 RMS Revised interrupt mechanism
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30-Oct-00 RMS Standardized register naming
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*/
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#if defined (VM_PDP10) /* PDP10 version */
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#error "LP11 is not supported on the PDP-10!"
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#elif defined (VM_VAX) /* VAX version */
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#include "vax_defs.h"
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#else /* PDP-11 version */
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#include "pdp11_defs.h"
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#endif
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#define LPTCSR_IMP (CSR_ERR + CSR_DONE + CSR_IE) /* implemented */
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#define LPTCSR_RW (CSR_IE) /* read/write */
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extern int32 int_req[IPL_HLVL];
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int32 lpt_csr = 0; /* control/status */
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int32 lpt_stopioe = 0; /* stop on error */
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DEVICE lpt_dev;
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t_stat lpt_rd (int32 *data, int32 PA, int32 access);
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t_stat lpt_wr (int32 data, int32 PA, int32 access);
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t_stat lpt_svc (UNIT *uptr);
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t_stat lpt_reset (DEVICE *dptr);
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t_stat lpt_attach (UNIT *uptr, char *ptr);
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t_stat lpt_detach (UNIT *uptr);
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/* LPT data structures
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lpt_dev LPT device descriptor
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lpt_unit LPT unit descriptor
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lpt_reg LPT register list
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*/
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#define IOLN_LPT 004
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DIB lpt_dib = {
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IOBA_AUTO, IOLN_LPT, &lpt_rd, &lpt_wr,
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1, IVCL (LPT), VEC_AUTO, { NULL }
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};
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UNIT lpt_unit = {
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UDATA (&lpt_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0), SERIAL_OUT_WAIT
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};
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REG lpt_reg[] = {
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{ GRDATA (BUF, lpt_unit.buf, DEV_RDX, 8, 0) },
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{ GRDATA (CSR, lpt_csr, DEV_RDX, 16, 0) },
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{ FLDATA (INT, IREQ (LPT), INT_V_LPT) },
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{ FLDATA (ERR, lpt_csr, CSR_V_ERR) },
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{ FLDATA (DONE, lpt_csr, CSR_V_DONE) },
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{ FLDATA (IE, lpt_csr, CSR_V_IE) },
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{ DRDATA (POS, lpt_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, lpt_unit.wait, 24), PV_LEFT },
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{ FLDATA (STOP_IOE, lpt_stopioe, 0) },
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{ GRDATA (DEVADDR, lpt_dib.ba, DEV_RDX, 32, 0), REG_HRO },
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{ GRDATA (DEVVEC, lpt_dib.vec, DEV_RDX, 16, 0), REG_HRO },
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{ NULL }
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};
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MTAB lpt_mod[] = {
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{ MTAB_XTD|MTAB_VDV, 004, "ADDRESS", "ADDRESS",
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&set_addr, &show_addr, NULL },
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{ MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
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&set_vec, &show_vec, NULL },
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{ 0 }
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};
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DEVICE lpt_dev = {
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"LPT", &lpt_unit, lpt_reg, lpt_mod,
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1, 10, 31, 1, DEV_RDX, 8,
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NULL, NULL, &lpt_reset,
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NULL, &lpt_attach, &lpt_detach,
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&lpt_dib, DEV_DISABLE | DEV_UBUS | DEV_QBUS
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};
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/* Line printer routines
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lpt_rd I/O page read
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lpt_wr I/O page write
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lpt_svc process event (printer ready)
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lpt_reset process reset
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lpt_attach process attach
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lpt_detach process detach
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*/
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t_stat lpt_rd (int32 *data, int32 PA, int32 access)
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{
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if ((PA & 02) == 0) /* csr */
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*data = lpt_csr & LPTCSR_IMP;
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else *data = lpt_unit.buf; /* buffer */
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return SCPE_OK;
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}
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t_stat lpt_wr (int32 data, int32 PA, int32 access)
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{
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if ((PA & 02) == 0) { /* csr */
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if (PA & 1)
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return SCPE_OK;
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if ((data & CSR_IE) == 0)
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CLR_INT (LPT);
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else if ((lpt_csr & (CSR_DONE + CSR_IE)) == CSR_DONE)
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SET_INT (LPT);
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lpt_csr = (lpt_csr & ~LPTCSR_RW) | (data & LPTCSR_RW);
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}
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else { /* buffer */
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if ((PA & 1) == 0)
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lpt_unit.buf = data & 0177;
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lpt_csr = lpt_csr & ~CSR_DONE;
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CLR_INT (LPT);
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if ((lpt_unit.buf == 015) || (lpt_unit.buf == 014) ||
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(lpt_unit.buf == 012)) sim_activate (&lpt_unit, lpt_unit.wait);
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else sim_activate (&lpt_unit, 0);
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}
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return SCPE_OK;
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}
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t_stat lpt_svc (UNIT *uptr)
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{
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lpt_csr = lpt_csr | CSR_ERR | CSR_DONE;
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if (lpt_csr & CSR_IE)
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SET_INT (LPT);
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if ((uptr->flags & UNIT_ATT) == 0)
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return IORETURN (lpt_stopioe, SCPE_UNATT);
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fputc (uptr->buf & 0177, uptr->fileref);
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uptr->pos = ftell (uptr->fileref);
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if (ferror (uptr->fileref)) {
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perror ("LPT I/O error");
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clearerr (uptr->fileref);
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return SCPE_IOERR;
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}
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lpt_csr = lpt_csr & ~CSR_ERR;
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return SCPE_OK;
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}
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t_stat lpt_reset (DEVICE *dptr)
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{
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lpt_unit.buf = 0;
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lpt_csr = CSR_DONE;
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if ((lpt_unit.flags & UNIT_ATT) == 0)
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lpt_csr = lpt_csr | CSR_ERR;
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CLR_INT (LPT);
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sim_cancel (&lpt_unit); /* deactivate unit */
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return SCPE_OK;
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}
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t_stat lpt_attach (UNIT *uptr, char *cptr)
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{
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t_stat reason;
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lpt_csr = lpt_csr & ~CSR_ERR;
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reason = attach_unit (uptr, cptr);
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if ((lpt_unit.flags & UNIT_ATT) == 0)
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lpt_csr = lpt_csr | CSR_ERR;
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return reason;
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}
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t_stat lpt_detach (UNIT *uptr)
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{
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lpt_csr = lpt_csr | CSR_ERR;
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return detach_unit (uptr);
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}
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