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Add link-time RST instruction

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This allows using a label as the argument to a `rst` instruction
Fixes rednex#448
This commit is contained in:
ISSOtm
2020-01-14 00:02:22 +01:00
parent 359a048b6e
commit b1cd730db2
14 changed files with 98 additions and 4 deletions
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3
test/link/rst-bad.asm Normal file
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@@ -0,0 +1,3 @@
SECTION "bad", ROM0[0]
rst bad
bad: ; This is not at a RST vector!

1
test/link/rst-bad.out Normal file
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@@ -0,0 +1 @@
error: rst-bad.asm(2): Value 1 is not a RST vector

31
test/link/rst.asm Normal file
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@@ -0,0 +1,31 @@
SECTION "calls", ROM0[0]
; The values are not known at this point, forcing the assembler to emit an
; expression
rst rst00
rst rst08
rst rst10
rst rst18
rst rst20
rst rst28
rst rst30
rst rst38
defRST: MACRO
; FIXME: This is required, otherwise the lexer does not paste the two tokens
ADDR equs "$\1"
SECTION "rst\1", ROM0[ADDR]
rst\1:
PURGE ADDR
ENDM
defRST 00
defRST 08
defRST 10
defRST 18
defRST 20
defRST 28
defRST 30
defRST 38

0
test/link/rst.out Normal file
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test/link/rst.out.bin Normal file
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@@ -0,0 +1 @@
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>