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Jonathan Campbell
2019-04-24 16:14:12 -07:00
parent e3af5f2ccf
commit 03d0130e90
1 changed files with 26 additions and 25 deletions
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51
NOTES/PC-98 INT DCh/MS-DOS 5.00 boot144.md
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@@ -1,5 +1,26 @@
Entry point (MS-DOS 5.00) 1.44MB disk image (on my hard drive, boot144.dsk). Configuration menu option "nothing". 0ADC segment may change location based on configuration.
--
STRUCT FUNCROW_ENTRY:
+00h length of string
+01h string to insert when key is pressed
+0Fh NUL
=10h ------
NOTE: function key row will only show the first 6 chars
NOTE: If the first byte is 0xFE, then the next 5 chars are display only
and the string to insert starts at byte 6. Length field still
covers the combined display + insert string.
STRUCT EDITKEY_ENTRY:
+00h length of string
+01h string to insert when key is pressed
+06h NUL (only 5 bytes accepted from application)
+07h NUL
=08h ------
--
0060:0020 WORD MS-DOS product number [see INT DCh CL=12h]
@@ -57,31 +78,11 @@ Entry point (MS-DOS 5.00) 1.44MB disk image (on my hard drive, boot144.dsk). Con
0060:2A7A WORD ??
0060:2A7C WORD ??
0060:2C86 WORD x 0x1A ??
0060:2D2E BYTE 16*10
10 entries of a 16-byte structure: (copied to 16 bytes for application starting at +01h)
+00h unknown (0x08)
+01h-06h function row text (often starts with 0xFE for some reason)
+07h-0Fh escape code to return to application when Fx key pressed
0060:2DCE BYTE 16*5
10 entries of a 16-byte structure: (copied to 16 bytes for application starting at +01h)
+00h unknown (0x00)
+01h-06h unknown (0x00)
+07h-0Fh unknown (0x00)
0060:2E1E BYTE 16*10
10 entries of a 16-byte structure: (copied to 16 bytes for application starting at +01h)
+00h number of bytes in string following this byte
+01h-0Eh string to stuff into CON input when Shift+Fx key pressed
+0Fh 00h
0060:2EBE BYTE 16*5
10 entries of a 16-byte structure: (copied to 16 bytes for application starting at +01h)
+00h unknown (0x00)
+01h-06h unknown (0x00)
+07h-0Fh unknown (0x00)
0060:2F0E BYTE 8*11
11 entries of a 8-byte structure: (copied to 6 bytes for application starting at +01h)
+00h number of bytes in string following this byte
+01h-05h string to stuff into CON input when specific keys are pressed
+06h-07h 00h
0060:2D2E FUNCROW_ENTRY * 10
0060:2DCE FUNCROW_ENTRY * 5
0060:2E1E FUNCROW_ENTRY * 10
0060:2EBE FUNCROW_ENTRY * 5
0060:2F0E EDITKEY_ENTRY * 11
0060:36B3 INT DCh entry point
0060:3B30 Subroutine called on INT DCh if 0060:014E is nonzero