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IDE IRQ, FPGA with maximum current strength on FET busctrl signals

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This commit is contained in:
Claude 2020-11-23 15:55:04 +00:00
parent e35f5657b2
commit 33493e87dc
3 changed files with 27 additions and 19 deletions
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8
Gayle.c
View File

@ -158,8 +158,7 @@ void writeGayleB(unsigned int address, unsigned int value) {
if (address == GIRQ) {
// printf("Write Byte to Gayle GIRQ 0x%06x (0x%06x)\n",address,value);
gayle_irq =
(gayle_irq & value) | (value & (GAYLE_IRQ_RESET | GAYLE_IRQ_BERR));
gayle_irq = (gayle_irq & value) | (value & (GAYLE_IRQ_RESET | GAYLE_IRQ_BERR));
return;
}
@ -247,6 +246,8 @@ uint8_t readGayleB(unsigned int address) {
if (address == GIRQ) {
// printf("Read Byte From GIRQ Space 0x%06x\n",gayle_irq);
return 0x80;//gayle_irq;
/*
uint8_t irq;
irq = ide0->drive->intrq;
@ -256,7 +257,8 @@ uint8_t readGayleB(unsigned int address) {
}
return 0;
}
*/
}
if (address == GCS) {
printf("Read Byte From GCS Space 0x%06x\n", 0x1234);

2
bitstream.svf
View File

@ -14,7 +14,7 @@
!
!Quartus II SVF converter 13.0
!
!Device #1: EPM570 - output_files/max2.pof Sun Nov 22 11:45:08 2020
!Device #1: EPM570 - output_files/max2.pof Mon Nov 23 16:52:29 2020
!
!NOTE "USERCODE" "0032528E";
!

36
emulator.c
View File

@ -259,7 +259,7 @@ int main() {
usleep(1500);
m68k_init();
m68k_set_cpu_type(M68K_CPU_TYPE_68030);
m68k_set_cpu_type(M68K_CPU_TYPE_68040);
m68k_pulse_reset();
if (maprom == 1) {
@ -280,13 +280,18 @@ int main() {
m68k_pulse_reset();
while (42) {
m68k_execute(3000);
if (GET_GPIO(1) == 0) {
m68k_execute(300);
if (GET_GPIO(1) == 0){
srdata = read_reg();
m68k_set_irq((srdata >> 13) & 0xff);
} else {
m68k_set_irq(0);
// if (CheckIrq() == 1)
// m68k_set_irq(2);
// else
m68k_set_irq(0);
};
}
return 0;
@ -324,7 +329,7 @@ unsigned int m68k_read_memory_8(unsigned int address) {
return read8((uint32_t)address);
}
return 0;
return 1;
}
unsigned int m68k_read_memory_16(unsigned int address) {
@ -346,7 +351,7 @@ unsigned int m68k_read_memory_16(unsigned int address) {
return (unsigned int)read16((uint32_t)address);
}
return 0;
return 1;
}
unsigned int m68k_read_memory_32(unsigned int address) {
@ -370,7 +375,7 @@ unsigned int m68k_read_memory_32(unsigned int address) {
return (a << 16) | b;
}
return 0;
return 1;
}
void m68k_write_memory_8(unsigned int address, unsigned int value) {
@ -443,7 +448,8 @@ void write16(uint32_t address, uint32_t data) {
uint32_t data_r = (~data & 0x0000ffff) << 8;
// asm volatile ("dmb" ::: "memory");
W16 *(gpio) = gpfsel0_o;
W16
*(gpio) = gpfsel0_o;
*(gpio + 1) = gpfsel1_o;
*(gpio + 2) = gpfsel2_o;
@ -484,7 +490,8 @@ void write8(uint32_t address, uint32_t data) {
uint32_t data_r = (~data & 0x0000ffff) << 8;
// asm volatile ("dmb" ::: "memory");
W8 *(gpio) = gpfsel0_o;
W8
*(gpio) = gpfsel0_o;
*(gpio + 1) = gpfsel1_o;
*(gpio + 2) = gpfsel2_o;
@ -521,8 +528,7 @@ uint32_t read16(uint32_t address) {
// asm volatile ("dmb" ::: "memory");
R16
*(gpio) = gpfsel0_o;
*(gpio) = gpfsel0_o;
*(gpio + 1) = gpfsel1_o;
*(gpio + 2) = gpfsel2_o;
@ -558,7 +564,8 @@ uint32_t read8(uint32_t address) {
uint32_t addr_l_r = (~address >> 16) << 8;
// asm volatile ("dmb" ::: "memory");
R8 *(gpio) = gpfsel0_o;
R8
*(gpio) = gpfsel0_o;
*(gpio + 1) = gpfsel1_o;
*(gpio + 2) = gpfsel2_o;
@ -587,10 +594,9 @@ uint32_t read8(uint32_t address) {
val = (val >> 8) & 0xffff;
if ((address & 1) == 0)
val = (val >> 8) & 0xff; // EVEN, A0=0,UDS
return (val >> 8) & 0xff; // EVEN, A0=0,UDS
else
val = val & 0xff; // ODD , A0=1,LDS
return val;
return val & 0xff; // ODD , A0=1,LDS
}
/******************************************************/