fix absolute addresses for loc in inline assembly

Author: totalspectrum

Changelog.txt

@@ -1,5 +1,6 @@
 Version 7.0.2
 - Avoid a crash if a .fpide file is not found
+- Fixed a problem with `loc #\imm` in inline asm
 
 Version 7.0.1
 - Fixed incorrect casts of arrays

Test/Expect/stest316.p2asm

@@ -0,0 +1,42 @@
+con
+	_clkfreq = 20000000
+	_clkmode = 16779595
+dat
+	nop
+	cogid	pa
+	coginit	pa,##$404
+	orgh	$10
+	long	0	'reserved
+	long	0 ' clock frequency: will default to 20000000
+	long	0 ' clock mode: will default to $100094b
+	orgh	$400
+ _ret_	mov	result1, #0
+	org	0
+entry
+
+_demo
+	loc	ptrb, #\65536
+_demo_ret
+	ret
+builtin_bytefill_
+        shr	arg03, #1 wc
+ if_c   wrbyte	arg02, arg01
+ if_c   add	arg01, #1
+        movbyts	arg02, #0
+builtin_wordfill_
+        shr	arg03, #1 wc
+ if_c   wrword	arg02, arg01
+ if_c   add	arg01, #2
+        setword	arg02, arg02, #1
+builtin_longfill_
+        wrfast	#0,arg01
+        cmp	arg03, #0 wz
+ if_nz  rep	#1, arg03
+ if_nz  wflong	arg02
+        ret
+
+COG_BSS_START
+	fit	480
+	orgh
+	org	COG_BSS_START
+	fit	480

Test/stest316.spin2

@@ -0,0 +1,4 @@
+pub demo()
+  org
+    loc ptrb,#\$10000
+  end

backends/asm/assemble_ir.c

@@ -163,8 +163,11 @@ doPrintOperand(struct flexbuf *fb, Operand *reg, int useimm, enum OperandEffect
         ERROR(NULL, "internal error, pcrelative operand found");
         break;
     case IMM_INT:
-        if (reg->val >= 0 && reg->val <= maximm) {
+        if (useabsaddr || (reg->val >= 0 && reg->val <= maximm)) {
             flexbuf_addstr(fb, "#");
+            if (useabsaddr) {
+                flexbuf_addstr(fb, "\\");
+            }
             if (reg->name && reg->name[0]) {
                 flexbuf_addstr(fb, RemappedName(reg->name));
             } else {