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I7000: Updated register definitions for 7080 CPU.

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Mark Pizzolato 2020-03-02 09:04:08 -05:00 committed by Richard Cornwell
parent 1a64d11f24
commit c6065d3f99
1 changed files with 20 additions and 13 deletions
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33
I7000/i7080_cpu.c
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@ -246,8 +246,9 @@ UNIT cpu_unit =
REG cpu_reg[] = {
{DRDATAD(IC, IC, 32, "Instruction register")},
{BRDATAD(A, &AC, 8, 8, 256, "A Register"), REG_VMIO|REG_CIRC },
{BRDATAD(B, &AC[256], 8, 8, 256, "B Register"), REG_VMIO|REG_CIRC },
{BRDATAD(ADATA, &AC, 8, 8, sizeof(AC), "All Possible Register Data"), REG_HRO },
{BRDATAD(A, &AC[0], 8, 8, 256, "A Register"), REG_VMIO|REG_CIRC },
{BRDATAD(B, &AC[256], 8, 8, 256, "B Register"), REG_VMIO|REG_CIRC },
{BRDATAD(ASU1, &AC[256], 8, 8, 16, "ASU1 Register"), REG_VMIO|REG_CIRC},
{BRDATAD(ASU2, &AC[272], 8, 8, 16, "ASU2 Register"), REG_VMIO|REG_CIRC},
{BRDATAD(ASU3, &AC[288], 8, 8, 16, "ASU3 Register"), REG_VMIO|REG_CIRC},
@ -3175,6 +3176,7 @@ cpu_reset(DEVICE * dptr)
int i;
int n,p,h;
static int initialized;
REG *reg;
if (initialized == 0) {
initialized = 1;
@ -3194,11 +3196,13 @@ cpu_reset(DEVICE * dptr)
prev_addr[i+512] = 512 + p;
next_half[i+512] = 512 + h;
}
cpu_reg[1].depth = 512;
cpu_reg[1].offset = 0;
cpu_reg[2].offset = 0;
cpu_reg[2].depth = 512;
cpu_reg[2].loc = &AC[512];
reg = find_reg("A", NULL, dptr);
reg->depth = 512;
reg->offset = 0;
reg = find_reg("B", NULL, dptr);
reg->offset = 0;
reg->depth = 512;
reg->loc = &AC[512];
} else {
for(i = 0; i < 256; i++) {
n = next_addr[i] = (i + 1) & 0377; /* A */
@ -3220,14 +3224,17 @@ cpu_reset(DEVICE * dptr)
prev_addr[i+1280] = 1280 + p;
next_half[i+1280] = 1280 + h;
}
cpu_reg[1].depth = 256; /* A register */
cpu_reg[1].offset = 0;
cpu_reg[2].depth = 256; /* B register */
cpu_reg[2].offset = 0;
cpu_reg[2].loc = &AC[256];
reg = find_reg("A", NULL, dptr);
reg->depth = 256; /* A register */
reg->offset = 0;
reg = find_reg("B", NULL, dptr);
reg->depth = 256; /* B register */
reg->offset = 0;
reg->loc = &AC[256];
/* Set up ASU locations */
reg = find_reg("ASU1", NULL, dptr);
for(i = 0; i < 15; i++)
cpu_reg[i+3].loc = &AC[256 + 16*i];
(reg + i)->loc = &AC[256 + 16*i];
}
/* Clear io error flags */