Appendix II: The Table, Entry by Entry

FMTBL, at 0282h in MOS 1.2: 85 two-byte addresses. Entry k is the routine for call 128 + k, and for the monitor command letter A + k (S8). The routine address is the word stored in the entry; where the routine has an original name in the course's source, it is given.

The last column says what the routine does where this course describes it. Where it is blank, the routine is there to read in the source.

Call	Hex	Letter	Entry at	Routine	Name	What it does
128	80h	A	0282h	032Ch	`ARITH`	arithmetic: sum, difference, offset
129	81h	B	0284h	0349h
130	82h	C	0286h	039Dh	`COPY`	copy memory
131	83h	D	0288h	03B9h	`DECIML`	hexadecimal to decimal
132	84h	E	028Ah	0402h
133	85h	F	028Ch	03ECh	`MFILL`	fill memory
134	86h	G	028Eh	03FEh
135	87h	H	0290h	0434h	`HEX`	decimal to hexadecimal
136	88h	I	0292h	01F5h	`ERROR`	prints `Error!`
137	89h	J	0294h	01F5h	`ERROR`	prints `Error!`
138	8Ah	K	0296h	01F5h	`ERROR`	prints `Error!`
139	8Bh	L	0298h	01F5h	`ERROR`	prints `Error!`
140	8Ch	M	029Ah	045Ch	`MODIFY`	modify memory
141	8Dh	N	029Ch	01F5h	`ERROR`	prints `Error!`
142	8Eh	O	029Eh	01F5h	`ERROR`	prints `Error!`
143	8Fh	P	02A0h	01F5h	`ERROR`	prints `Error!`
144	90h	Q	02A2h	01F5h	`ERROR`	prints `Error!`
145	91h	R	02A4h	0489h
146	92h	S	02A6h	01F5h	`ERROR`	prints `Error!`
147	93h	T	02A8h	054Dh	`TBLATE`	tabulate memory
148	94h	U	02AAh	01F5h	`ERROR`	prints `Error!`
149	95h	V	02ACh	01F5h	`ERROR`	prints `Error!`
150	96h	W	02AEh	0491h
151	97h	X	02B0h	0587h
152	98h	Y	02B2h	058Ch
153	99h	Z	02B4h	0593h	`REGSTR`	register display
154	9Ah		02B6h	015Dh
155	9Bh		02B8h	06D7h
156	9Ch		02BAh	065Eh	`KEYIN`	call: waits for a key, returns its code in A
157	9Dh		02BCh	0614h	`GETLN`	call: reads a line into memory at (DE)
158	9Eh		02BEh	0F1Ah	`OUTC`	call: prints the character in A
159	9Fh		02C0h	0F5Ch
160	A0h		02C2h	0F48h
161	A1h		02C4h	0F52h
162	A2h		02C6h	1CEBh
163	A3h		02C8h	1CEEh
164	A4h		02CAh	04E8h
165	A5h		02CCh	04F8h
166	A6h		02CEh	0F14h
167	A7h		02D0h	0F0Fh
168	A8h		02D2h	0F18h
169	A9h		02D4h	0E9Dh
170	AAh		02D6h	0EA1h
171	ABh		02D8h	0EA5h
172	ACh		02DAh	0EE4h
173	ADh		02DCh	0ED1h
174	AEh		02DEh	1E1Bh
175	AFh		02E0h	1DDCh
176	B0h		02E2h	0EFDh
177	B1h		02E4h	FB14h		call: reads the byte at (HL) from the RAM under the ROM
178	B2h		02E6h	FB1Ah
179	B3h		02E8h	FB21h
180	B4h		02EAh	0F6Ah
181	B5h		02ECh	076Fh	`KSCAN`	call: returns a key code in A, or 0 if no key, without waiting
182	B6h		02EEh	1E8Dh
183	B7h		02F0h	1EA2h
184	B8h		02F2h	1EA7h
185	B9h		02F4h	1EACh
186	BAh		02F6h	1EB1h
187	BBh		02F8h	1ECDh
188	BCh		02FAh	0FAEh
189	BDh		02FCh	1E72h
190	BEh		02FEh	0DC7h
191	BFh		0300h	0E7Bh
192	C0h		0302h	0F92h
193	C1h		0304h	0020h
194	C2h		0306h	0BE1h
195	C3h		0308h	0030h
196	C4h		030Ah	1893h
197	C5h		030Ch	186Dh
198	C6h		030Eh	190Ah
199	C7h		0310h	1904h
200	C8h		0312h	1919h		call: draws a line
201	C9h		0314h	1B1Ah
202	CAh		0316h	18F6h
203	CBh		0318h	18BAh
204	CCh		031Ah	1A45h
205	CDh		031Ch	19B6h
206	CEh		031Eh	0E60h
207	CFh		0320h	0F26h
208	D0h		0322h	0ACEh
209	D1h		0324h	0C45h
210	D2h		0326h	4004h
211	D3h		0328h	0E0Bh
212	D4h		032Ah	0D41h

Routine 0020h (call 193) and 0030h (call 195) are the same code as RST 20h and RST 30h; 4004h (call 210) is outside the ROM.

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