HP 50g Graphing, 48gII Graphing manual REG C REG D REG R0 REG R1 REG R2 REG R3 REG R4

2332

2340

2348

2356

2364

2372

2380

2388

2392

2396

2408

2412

2416

3420

REG C;

REG D;

REG R0;

REG R1;

REG R2;

REG R3;

REG R4;

U32 D0

U32 D1;

U32 P, P4, P4_32; // P4 = 4*P, P4_32 = 4*P32, use setP() to modify P. U32 ST;

U32 HST;

U32 carry; // 0 or !0

BOOL dec; // 0→hex or 1→dec U32 RSTK[NB_RSTK];

U32 RSTK_i; // Index for next push. REG FIELD[32]; // Field masks.

U32 FIELD_START[32]; // Lowest nibble of the field.

U32 FIELD_LENGTH[32]; // Length of the field.

Therefore, LDR R2 [R1 2316] allows you to read the lower 32 bits of the Saturn register A.

LDR R2 [R1 1]

LDR R3 [R2 1]

allows you to read the first 8 nibbles at Saturn address 01008

The following file can be used to declare your Saturn chipset structure.

"!ASM

CP=0

DCCP #1028 SREAD DCCP #1028 SWRITE DCCP #260 SPRIORITY DCCP 8 SRA

DCCP 8 SRB

DCCP 8 SRC

DCCP 8 SRD

DCCP 8 SR0

DCCP 8 SR1

DCCP 8 SR2

DCCP 8 SR3

DCCP 8 SR4

DCCP 4 SD0

DCCP 4 SD1

DCCP 4 SRP

DCCP 4 SRP4

DCCP 4 SRP32

DCCP 4 SST

DCCP 4 SHST DCCP 4 SCARRY DCCP 4 SDEC DCCP #32 SRSCK DCCP 4 SRSTKP DCCP #256 SFMASK DCCP #128 SFSTART DCCP #128 SFLENGTH @"

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