From 640643cb6548c1e60732ec6e88a43f1dcf72bf49 Mon Sep 17 00:00:00 2001
From: Folkert van Heusden <mail@vanheusden.com>
Date: Sun, 6 Apr 2025 18:33:58 +0200
Subject: [PATCH] fixes vor ADC/SBC & added byte-ode for ADC/SBC
---
PDP11/test.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)
diff --git a/PDP11/test.c b/PDP11/test.c
index 8024defa..55b40039 100644
--- a/PDP11/test.c
+++ b/PDP11/test.c
@@ -325,18 +325,24 @@ void emit_add_sub_c()
int id = 0;
json_t *out = json_array();
for(int group=0; group<4; group++) {
- uint16_t instr = 0;
- int word = group & 1;
+ for(int word=0; word<2; word++) {
+ uint16_t instr = 0;
- if (group == 0 || group == 1)
- instr = (6 << 12 /* instr */) | (word << 15 /* ADD/SUB */) | (1 << 6 /* src=R1 */);
- else if (group == 2)
- instr = (055 << 6 /* instr */) | (word << 15 /* ADCb/ADCw */) | (1 << 6 /* src=R1 */);
- else if (group == 3)
- instr = (056 << 6 /* instr */) | (word << 15 /* SBCb/SBCw */) | (1 << 6 /* src=R1 */);
+ if (group == 0 || group == 1)
+ instr = (6 << 12 /* instr */) | (word << 15 /* ADD/SUB */) | (1 << 6 /* src=R1 */);
+ else if (group == 2)
+ instr = (055 << 6 /* instr */) | (word << 15 /* ADCb/ADCw */) | 1 /* src=R1 */;
+ else if (group == 3)
+ instr = (056 << 6 /* instr */) | (word << 15 /* SBCb/SBCw */) | 1 /* src=R1 */;
- for(int psw_val=0; psw_val<2; psw_val++)
- produce_set_register(instr, psw_val, &id, out);
+ if (group == 2 || group == 3) {
+ for(int psw_val=0; psw_val<2; psw_val++)
+ produce_set_register(instr, psw_val, &id, out);
+ }
+ else {
+ produce_set_register(instr, 0, &id, out);
+ }
+ }
}
dump_json(filename, out);
}