whichbas: add detection for OSS Integer BASIC.

5 files changed, 25 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index ce1233b..02c7f01 100644
--- a/Makefile
+++ b/Makefile
@@ -56,6 +56,8 @@ RST2MAN=rst2man
 
 all: $(BINS) manpages symlinks subdirs $(TTF) amsb40.txt
 
+intbas: bas.o
+
 unprotbas: bas.o
 
 protbas: bas.o
diff --git a/whichbas.1 b/whichbas.1
index f4e0037..f1a2816 100644
--- a/whichbas.1
+++ b/whichbas.1
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "WHICHBAS" 1 "2025-03-11" "0.2.2" "Urchlay's Atari 8-bit Tools"
+.TH "WHICHBAS" 1 "2025-03-24" "0.2.2" "Urchlay's Atari 8-bit Tools"
 .SH NAME
 whichbas \- Determine BASIC variant of a tokenized Atari 8-bit program
 .SH SYNOPSIS
@@ -130,6 +130,12 @@ but in A+ it\(aqs token \fB$1D\fP\&. Detection should be 100% reliable, but
 since there aren\(aqt many BASIC/A+ programs in the wild, it hasn\(aqt been
 thoroughly tested.
 .sp
+OSS Integer BASIC is a product that was developed by OSS, but never
+released until recently. It\(aqs similar to BASIC XL and XE, but uses
+16\-bit integers for all numeric operations, rather than 6\-byte BCD
+floating point. Integer BASIC\(aqs SAVEd programs are recognized by
+the first two bytes, which are always \fB$77\fP \fB$00\fP\&.
+.sp
 Various non\-BASIC files are detected (including Mac/65 source,
 ELF binaries, etc) as a convenience, but I wouldn\(aqt rely on
 \fBwhichbas\fP\(aqs non\-BASIC file type detection if I were you.
@@ -225,6 +231,9 @@ Compiled Turbo BASIC detected.
 .B \fB14\fP
 OSS BASIC/A+ detected.
 .TP
+.B \fB15\fP
+OSS Integer BASIC detected.
+.TP
 .B \fB64\fP
 None of the above; not BASIC.
 .UNINDENT
diff --git a/whichbas.c b/whichbas.c
index 1ed21a4..27044b5 100644
--- a/whichbas.c
+++ b/whichbas.c
@@ -1036,6 +1036,9 @@ void detect_foreign(void) {
 		return;
 	}
 
+	if(c == 0x77 && d == 0x00)
+		foreign("OSS Integer BASIC", SRET_OSSINT);
+
 	if(c == 0xfb && d == 0xc2)
 		foreign("Compiled Turbo BASIC XL", SRET_COMPILED_TURBO);
 
diff --git a/whichbas.h b/whichbas.h
index 0165953..e414241 100644
--- a/whichbas.h
+++ b/whichbas.h
@@ -14,4 +14,5 @@
 #define SRET_EXTENDED_BXE         12
 #define SRET_COMPILED_TURBO       13
 #define SRET_APLUS                14
+#define SRET_OSSINT               15
 #define SRET_NOT_BASIC            64
diff --git a/whichbas.rst b/whichbas.rst
index 8a7e15e..17e992e 100644
--- a/whichbas.rst
+++ b/whichbas.rst
@@ -95,6 +95,12 @@ but in A+ it's token **$1D**. Detection should be 100% reliable, but
 since there aren't many BASIC/A+ programs in the wild, it hasn't been
 thoroughly tested.
 
+OSS Integer BASIC is a product that was developed by OSS, but never
+released until recently. It's similar to BASIC XL and XE, but uses
+16-bit integers for all numeric operations, rather than 6-byte BCD
+floating point. Integer BASIC's SAVEd programs are recognized by
+the first two bytes, which are always **$77** **$00**.
+
 Various non-BASIC files are detected (including Mac/65 source,
 ELF binaries, etc) as a convenience, but I wouldn't rely on
 **whichbas**\'s non-BASIC file type detection if I were you.
@@ -187,6 +193,9 @@ With the **-s** option, the exit status is:
 **14**
   OSS BASIC/A+ detected.
 
+**15**
+  OSS Integer BASIC detected.
+
 **64**
   None of the above; not BASIC.