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redcode
2022-05-21 23:14:06 +02:00
parent 27415c5b91
commit ca5ad97ec4
4 changed files with 57 additions and 40 deletions
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@@ -1234,7 +1234,7 @@ INSTRUCTION(neg)
| References: |
| 1. https://worldofspectrum.org/forums/discussion/20345 |
| 2. https://worldofspectrum.org/forums/discussion/41704 |
| 3. Banks, David (2018-08-21). "Undocumented Z80 Flags". |
| 3. Banks, David (2018-08-21). "Undocumented Z80 Flags" revision 1.0. |
| * https://github.com/hoglet67/Z80Decoder/wiki/Undocumented-Flags |
| * https://stardot.org.uk/forums/download/file.php?id=39831 |
'===========================================================================*/
@@ -1434,8 +1434,8 @@ INSTRUCTION(rrd ) {RXD(>> 4, << 4, & 0xF); }
| (+) Some forms of the instruction are undocumented. |
| (*) Undocumented instruction. |
|----------------------------------------------------------------------------|
| 1. All versions of Zilog's "Z80 Family: CPU User Manual" contain a typo in |
| the M-cycles of this instruction: an additional M-cycle of 4 T-states. |
| 1. All versions of Zilog's "Z80 CPU User Manual" contain a typo in the |
| M-cycles of this instruction: an additional M-cycle of 4 T-states. |
'===========================================================================*/
INSTRUCTION(M_N_K ) {zuint8 *k = &K1; *k = M1(*k); return 8;}
@@ -1595,9 +1595,9 @@ INSTRUCTION(call_Z_WORD)
|---------------------------------------------------------------|
| (*) Undocumented instruction. |
|---------------------------------------------------------------|
| 1. All versions of Zilog's "Z80 Family: CPU User Manual" have |
| the same typo in the M-cycles of these instructions: the |
| T-states of the 3rd and 4th M-cycles are swapped. |
| 1. All versions of Zilog's "Z80 CPU User Manual" have a typo |
| in the M-cycles of these instructions: the T-states of the |
| 3rd and 4th M-cycles are swapped. |
'==============================================================*/
INSTRUCTION(in_J_vc ) {IN_VC; J1 = t; PC += 2; return 12;}
@@ -2159,14 +2159,15 @@ Z80_API zusize z80_run(Z80 *self, zusize cycles)
| resuming normal processing operation at address 0000h [2,4,6,7]. |
| |
| References: |
| 1. Zilog (2005-02). "Z80 Family: CPU User Manual" v5. pp. 9,10. |
| 1. Zilog (2016-09). "Z80 CPU User Manual" revision 11. p. 6. |
| 2. Flammenkamp, Achim. "Interrupt Behaviour of the Z80 CPU". |
| * http://z80.info/interrup.htm |
| 3. https://worldofspectrum.org/forums/discussion/34574 |
| 4. https://baltazarstudios.com/webshare/Z80-undocumented-behavior.htm |
| 5. Brewer, Tony (2014-12). "Z80 Special Reset". |
| * http://primrosebank.net/computers/z80/z80_special_reset.htm |
| 6. SGS-Thomson (1990-01). "Z80 Microprocessor Family Databook". p. 40. |
| 6. SGS-Thomson (1990-01). "Z80 Microprocessor Family" 1st edition. |
| p. 40. |
'=========================================================================*/
# ifdef Z80_WITH_RESET_SIGNAL
if (REQUEST & Z80_REQUEST_RESET)
@@ -2206,7 +2207,7 @@ Z80_API zusize z80_run(Z80 *self, zusize cycles)
| by electronic simulations [1]. |
| |
| References: |
| 1. Tested on "Visual Z80 Remix" |
| 1. Checked with "Visual Z80 Remix" |
| * https://floooh.github.io/visualz80remix |
| * https://github.com/floooh/v6502r |
'=========================================================================*/
@@ -2355,7 +2356,7 @@ Z80_API zusize z80_run(Z80 *self, zusize cycles)
| incremented as a result of the instruction fetch [1,2]. |
| |
| References: |
| 1. Tested on "Visual Z80 Remix" |
| 1. Checked with "Visual Z80 Remix" |
| * https://floooh.github.io/visualz80remix |
| * https://github.com/floooh/v6502r |
| 2. Zilog (1978-05). "Z80 Family Program Interrupt Structure, The". |
@@ -2555,7 +2556,7 @@ Z80_API zusize z80_run(Z80 *self, zusize cycles)
| odd or even. |
| |
| References: |
| 1. Zilog (2005-02). Z80 "Family: CPU User Manual" v5. pp. 25,26. |
| 1. Zilog (2005-03). "Z80 CPU User Manual" revision 5. pp. 25,26. |
| 2. Young, Sean (2005-09-18). "Undocumented Z80 Documented, The". |
| v0.91 p. 20. |
'=====================================================================*/