Tecmo NBA Basketball

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Revisional Differences#

NES-BK Rev 1#

Revision 1 fixes several errors in player stats. These fixes carried over to the later revision as well.

Morlon Wiley

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Isiah Thomas

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Orlando Woolridge

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Brian Shaw

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Kenny Anderson

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Sam Bowie

Weight.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Sean Higgins

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Jeff Turner

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Jeff Ruland

Number, height, weight.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Tom Chambers

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Jim Les

Number.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

Shawn Kemp

Height, weight.

NES-BK Rev 0	NES-BK Rev 1 & NES-N7

NES-N7#

After the licence to use Michael Jordan's likeness ran out, a version with a new ID was released that replaced him with a generic faceless character.

NES-BK (Rev 0 & 1)	NES-N7

Uncompiled Source#

Revision 1 of the game contains small portions of the source code at the following addresses.

0x17FE3:

    .0000 07          
    .dw irq_vector.9

0x1B8FA:

    .db >show_big_name                 ;22
    .db >init_defense                  ;23
    .db >reset_state                   ;24

0x55EC0:

         p7
    .dw .p8
    .dw .p9
    .dw .p10
    .dw .p11
    .dw .p12
.p1
    .db "ROD STRICKLAND"
    STATS2 PG|((14/2)<<3),$01,$63,175,455,687,333,138
.p2
    .db "PAUL PRESSEY"
    STATS2 OG|((03/2)<<3),$08,$65,203,373,683,142,27
.p3
    .db "SEAN ELLIOTT"
    STATS2 WF|((16/2)<<3),$32,$68,210,494,861,304,163
.p4
    .d

0x56F90:

         2 WF|((17/2)<<3),$22,$67,210,454,770,200,171
.p10
    .db "WAYMAN TISDALE"
    STATS2 PF|((17/2)<<3),$23,$69,260,500,763,000,

0x57F00:

*********************************************
*
*   Running speed       = 0.0 to 3.0, where hi nibble is whole number
*                         and lo nibble is fractional part
*   Maximum Jump        = 10 feet to 12 feet.  This is based on the height
* 

0x5D6A0:

                sta dividend+3
                lda \1
                sta divisor
                lda \1+1
                sta divisor+1
                lda #\2
                jsr divide_32x16

STATS1          .db \0
                .db \1
                .db \2
                .db \3
                .dw \4
                .dw \5
                .dw \6
                .dw \7
                .dw \8
                .dw \9
                .dw \:
                .dw \;
                .dw \<
STATS2          .db \0
                .db \1
                .db \2
                .db \3>>2
                .db \4>>2
                .db \5>>2
                .db \6>>2
      ;         .dw \7
      ;         .dw \8
      ;         .dw \9
      ;         .dw \:
      ;         .dw \;


COMMAND          .db \0
                 .dw \1
                 .dw \2

COMMAND2          .db \0
                  .db \1
                  .db \2
                  .dw \3

SHADE_ON          lda