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systembus_bits: add istext

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This commit is contained in:
Zack Buhman 2025-06-25 15:03:27 -05:00
parent b51487d374
commit cb8fd7e345
3 changed files with 15 additions and 0 deletions
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5
regs/systembus_bits.csv
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@ -60,3 +60,8 @@
"FFST",,"5","holly_cpu_if_block_internal_write_buffer",,, "FFST",,"5","holly_cpu_if_block_internal_write_buffer",,,
"FFST",,"4","holly_g2_if_block_internal_write_buffer",,, "FFST",,"4","holly_g2_if_block_internal_write_buffer",,,
"FFST",,"0","aica_internal_write_buffer",,, "FFST",,"0","aica_internal_write_buffer",,,
,,,,,,
"ISTEXT",,3,"external_device",1,,
"ISTEXT",,2,"modem",1,,
"ISTEXT",,1,"aica",1,,
"ISTEXT",,0,"gdrom",1,,

1 register_name enum_name bits bit_name value mask description
60 FFST 5 holly_cpu_if_block_internal_write_buffer
61 FFST 4 holly_g2_if_block_internal_write_buffer
62 FFST 0 aica_internal_write_buffer
63
64 ISTEXT 3 external_device 1
65 ISTEXT 2 modem 1
66 ISTEXT 1 aica 1
67 ISTEXT 0 gdrom 1

BIN
regs/systembus_bits.ods
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10
systembus_bits.hpp
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@ -131,3 +131,13 @@ constexpr uint32_t holly_g2_if_block_internal_write_buffer(uint32_t reg) { retur
constexpr uint32_t aica_internal_write_buffer(uint32_t reg) { return (reg >> 0) & 0x1; } constexpr uint32_t aica_internal_write_buffer(uint32_t reg) { return (reg >> 0) & 0x1; }
} }
namespace istext {
constexpr uint32_t external_device = 1 << 3;
constexpr uint32_t modem = 1 << 2;
constexpr uint32_t aica = 1 << 1;
constexpr uint32_t gdrom = 1 << 0;
}