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tomaz / zx-next-dev-guide

Guide for ZX Spectrum Next assembler developer. Available as free to download PDF from releases page, or printed coil bound book at https://bit.ly/zx-next-assembler-dev-guide

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Incorrect description for Interrupt Mode 1

zapolnov opened this issue · comments

commented

Description of Interrupt Mode 1 in Chapter 2 ("Zilog Z80"), section "2.4.2 Maskable Interrupts (INT)" is identical to the description of Interrupt Mode 0. It seems to be copy-paste.

AFAIK in case of Interrupt Mode 1 CPU always jumps to address $0038 ignoring whatever is on the bus.