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f5f2930712
This emulates the classic LINC. The design was settled in 1965, increasing memory to 2048 words, and adding a Z register, an overflow flag, and an interrupt facility.
41 lines
802 B
C
41 lines
802 B
C
#include "linc_defs.h"
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/* Debug */
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#define DBG 0001
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static DEBTAB dpy_deb[] = {
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{ "DBG", DBG },
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{ NULL, 0 }
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};
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DEVICE dpy_dev = {
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"DPY", NULL, NULL, NULL,
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0, 8, 12, 1, 8, 12,
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NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, DEV_DEBUG, 0, dpy_deb,
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NULL, NULL, NULL, NULL, NULL, NULL
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};
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void dpy_dis(uint16 h, uint16 x, uint16 y)
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{
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sim_debug(DBG, &dpy_dev, "DIS %u;%03o, A=%03o\n", h, x, y);
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/* Y coordinate +0 and -0 both refer to the same vertical position. */
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if (y < 256)
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y += 255;
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else
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y -= 256;
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crt_point(x, y);
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}
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/* Called from display library to get data switches. */
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void
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cpu_get_switches (unsigned long *p1, unsigned long *p2)
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{
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}
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/* Called from display library to set data switches. */
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void
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cpu_set_switches (unsigned long p1, unsigned long p2)
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{
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}
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